High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells

Tsai, Hsinhan; Nie, Wanyi; Blancon, Jean-Christophe Robert; Stoumpos, Constantinos C.; Asadpour, Reza; Harutyunyan, Boris; Neukirch, Amanda J.; Verduzco, Rafael; Crochet, Jared John; Tretiak, Sergei; Pedesseau, Laurent; Even, Jacky; Alam, Muhammad A.; Gupta, Gautam; Lou, Jun; Ajayan, Pulickel M.; Bedzyk, Michael J.; Kanatzidis, Mercouri G.; Mohite, Aditya

doi:10.1038/nature18306

High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells

Journal Article · Wed Jul 06 00:00:00 EDT 2016 · Nature (London)

DOI:https://doi.org/10.1038/nature18306· OSTI ID:1492605

^[1]; ^[2]; ^[2]; Stoumpos, Constantinos C. ^[3]; Asadpour, Reza ^[4]; Harutyunyan, Boris ^[5]; ^[2]; Verduzco, Rafael ^[6]; ^[2]; ^[2]; Pedesseau, Laurent ^[7]; Even, Jacky ^[7]; Alam, Muhammad A. ^[4]; Gupta, Gautam ^[2]; Lou, Jun ^[8]; Ajayan, Pulickel M. ^[8]; Bedzyk, Michael J. ^[5]; Kanatzidis, Mercouri G. ^[3]; ^[2]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Rice Univ., Houston, TX (United States). Dept. of Materials Science and Nanoengineering
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry; Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science; Northwestern Univ., Evanston, IL (United States). Engineering and Argonne-Northwestern Solar Energy Research (ANSER) Center
Purdue Univ., West Lafayette, IN (United States). School of Electrical and Computer Engineering
Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science; Northwestern Univ., Evanston, IL (United States). Engineering and Argonne-Northwestern Solar Energy Research (ANSER) Center
Rice Univ., Houston, TX (United States). Dept. of Materials Science and Nanoengineering; Rice Univ., Houston, TX (United States). Lab. for Nanophotonics, Dept. of Chemical and Biomolecular Engineering
Fonctions Optiques pour les Technologies de l’Information (FOTON), Rennes (France)
Rice Univ., Houston, TX (United States). Dept. of Materials Science and Nanoengineering

Three-dimensional organic–inorganic perovskites have emerged as one of the most promising thin-film solar cell materials owing to their remarkable photophysical properties, which have led to power conversion efficiencies exceeding 20 per cent, with the prospect of further improvements towards the Shockley– Queisser limit for a single-junction solar cell (33.5 per cent). Besides efficiency, another critical factor for photovoltaics and other optoelectronic applications is environmental stability and photostability under operating conditions. In contrast to their three-dimensional counterparts, Ruddlesden–Popper phases—layered two-dimensional perovskite films—have shown promising stability, but poor efficiency at only 4.73 per cent. This relatively poor efficiency is attributed to the inhibition of out-of-plane charge transport by the organic cations, which act like insulating spacing layers between the conducting inorganic slabs. Here we overcome this issue in layered perovskites by producing thin films of near-single-crystalline quality, in which the crystallographic planes of the inorganic perovskite component have a strongly preferential out-of-plane alignment with respect to the contacts in planar solar cells to facilitate efficient charge transport. We report a photovoltaic efficiency of 12.52 per cent with no hysteresis, and the devices exhibit greatly improved stability in comparison to their three-dimensional counterparts when subjected to light, humidity and heat stress tests. Unencapsulated two-dimensional perovskite devices retain over 60 per cent of their efficiency for over 2,250 hours under constant, standard (AM1.5G) illumination, and exhibit greater tolerance to 65 per cent relative humidity than do three-dimensional equivalents. When the devices are encapsulated, the layered devices do not show any degradation under constant AM1.5G illumination or humidity. Finally, we anticipate that these results will lead to the growth of single-crystalline, solution-processed, layered, hybrid, perovskite thin films, which are essential for high performance opto-electronic devices with technologically relevant long-term stability.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Stanford Univ., Stanford, CA (United States)

Sponsoring Organization:: USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: 89233218CNA000001; EE0004946

OSTI ID:: 1492605

Alternate ID(s):: OSTI ID: 1330238
OSTI ID: 1579836
OSTI ID: 1388183

Report Number(s):: LA-UR--17-22530

Journal Information:: Nature (London), Journal Name: Nature (London) Journal Issue: 7616 Vol. 536; ISSN 0028-0836

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Organometallic Perovskite Metasurfaces Gholipour, Behrad; Adamo, Giorgio; Cortecchia, Daniele Advanced Materials, Vol. 29, Issue 9 https://doi.org/10.1002/adma.201604268	journal	January 2017
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2D Ruddlesden-Popper Perovskites Microring Laser Array Zhang, Haihua; Liao, Qing; Wu, Yishi Advanced Materials, Vol. 30, Issue 15 https://doi.org/10.1002/adma.201706186	journal	March 2018
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Defect and Contact Passivation for Perovskite Solar Cells Aydin, Erkan; Bastiani, Michele; Wolf, Stefaan Advanced Materials, Vol. 31, Issue 25 https://doi.org/10.1002/adma.201900428	journal	April 2019
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Fluorinated 2D Lead Iodide Perovskite Ferroelectrics Sha, Tai‐Ting; Xiong, Yu‐An; Pan, Qiang Advanced Materials https://doi.org/10.1002/adma.201901843	journal	June 2019
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Orientation Engineering in Low‐Dimensional Crystal‐Structural Materials via Seed Screening Li, Kanghua; Chen, Chao; Lu, Shuaicheng Advanced Materials, Vol. 31, Issue 44 https://doi.org/10.1002/adma.201903914	journal	September 2019
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Defect Engineering toward Highly Efficient and Stable Perovskite Solar Cells Li, Bowei; Ferguson, Victoria; Silva, S. Ravi P. Advanced Materials Interfaces, Vol. 5, Issue 22 https://doi.org/10.1002/admi.201800326	journal	July 2018
Aminosilane‐Modified CuGaO ₂ Nanoparticles Incorporated with CuSCN as a Hole‐Transport Layer for Efficient and Stable Perovskite Solar Cells Lee, Byungho; Yun, Alan Jiwan; Kim, Jinhyun Advanced Materials Interfaces, Vol. 6, Issue 22 https://doi.org/10.1002/admi.201901372	journal	September 2019
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Recent Progress in Metal Halide Perovskite Micro‐ and Nanolasers Wei, Qi; Li, Xiaojun; Liang, Chao Advanced Optical Materials, Vol. 7, Issue 17 https://doi.org/10.1002/adom.201900080	journal	April 2019
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Molecular Interlayers in Hybrid Perovskite Solar Cells Deng, Wentao; Liang, Xinxing; Kubiak, Peter S. Advanced Energy Materials, Vol. 8, Issue 1 https://doi.org/10.1002/aenm.201701544	journal	September 2017
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Rational Design of Metal Oxide-Based Cathodes for Efficient Dye-Sensitized Solar Cells Wang, Wei; Xu, Xiaomin; Liu, Yu Advanced Energy Materials, Vol. 8, Issue 25 https://doi.org/10.1002/aenm.201800172	journal	July 2018
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Compositional and Solvent Engineering in Dion-Jacobson 2D Perovskites Boosts Solar Cell Efficiency and Stability Ke, Weijun; Mao, Lingling; Stoumpos, Constantinos C. Advanced Energy Materials, Vol. 9, Issue 10 https://doi.org/10.1002/aenm.201803384	journal	January 2019
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Rational Core–Shell Design of Open Air Low Temperature In Situ Processable CsPbI ₃ Quasi‐Nanocrystals for Stabilized p‐i‐n Solar Cells Xi, Jun; Piao, Chengcheng; Byeon, Junseop Advanced Energy Materials, Vol. 9, Issue 31 https://doi.org/10.1002/aenm.201901787	journal	July 2019
Ruddlesden–Popper 2D Component to Stabilize γ‐CsPbI ₃ Perovskite Phase for Stable and Efficient Photovoltaics Wang, Kang; Li, Zhizai; Zhou, Faguang Advanced Energy Materials, Vol. 9, Issue 42 https://doi.org/10.1002/aenm.201902529	journal	September 2019
Processing‐Performance Evolution of Perovskite Solar Cells: From Large Grain Polycrystalline Films to Single Crystals Haque, Md Azimul; Troughton, Joel; Baran, Derya Advanced Energy Materials, Vol. 10, Issue 13 https://doi.org/10.1002/aenm.201902762	journal	April 2020
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Dimensional Reduction of Cs ₂ AgBiBr ₆ : A 2D Hybrid Double Perovskite with Strong Polarization Sensitivity Li, Yaobin; Yang, Tao; Xu, Zhiyun Angewandte Chemie, Vol. 132, Issue 9 https://doi.org/10.1002/ange.201911551	journal	January 2020
Guanine‐Stabilized Formamidinium Lead Iodide Perovskites Hong, Li; Milić, Jovana V.; Ahlawat, Paramvir Angewandte Chemie, Vol. 132, Issue 12 https://doi.org/10.1002/ange.201912051	journal	February 2020
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A Two-Dimensional Ruddlesden-Popper Perovskite Nanowire Laser Array based on Ultrafast Light-Harvesting Quantum Wells Zhang, Haihua; Wu, Yishi; Liao, Qing Angewandte Chemie International Edition, Vol. 57, Issue 26 https://doi.org/10.1002/anie.201802515	journal	May 2018
A Lead Iodide Perovskite Based on a Large Organic Cation for Solar Cell Applications Ma, Chunqing; Shen, Dong; Lo, Ming-Fai Angewandte Chemie International Edition, Vol. 57, Issue 31 https://doi.org/10.1002/anie.201805823	journal	June 2018
All-Inorganic CsPb _{1− x} Ge _x I ₂ Br Perovskite with Enhanced Phase Stability and Photovoltaic Performance Yang, Fu; Hirotani, Daisuke; Kapil, Gaurav Angewandte Chemie International Edition, Vol. 57, Issue 39 https://doi.org/10.1002/anie.201807270	journal	August 2018
The Second Spacer Cation Assisted Growth of a 2D Perovskite Film with Oriented Large Grain for Highly Efficient and Stable Solar Cells Lian, Xiaomei; Chen, Jiehuan; Qin, Minchao Angewandte Chemie International Edition, Vol. 58, Issue 28 https://doi.org/10.1002/anie.201902959	journal	May 2019
(C ₆ H ₁₃ NH ₃ ) ₂ (NH ₂ CHNH ₂ )Pb ₂ I ₇ : A Two‐dimensional Bilayer Inorganic–Organic Hybrid Perovskite Showing Photodetecting Behavior Wang, Yuyin; Liu, Xitao; Li, Lina Chemistry – An Asian Journal, Vol. 14, Issue 9 https://doi.org/10.1002/asia.201900059	journal	March 2019
Tailoring the Band Gap in 3D Hybrid Perovskites by Substitution of the Organic Cations: (CH 3 NH 3 ) 1−2 y (NH 3 (CH 2 ) 2 NH 3 ) 2 y Pb 1− y I 3 (0≤ y ≤0.25) Daub, Michael; Hillebrecht, Harald Chemistry - A European Journal, Vol. 24, Issue 36 https://doi.org/10.1002/chem.201800244	journal	June 2018
Caesium for Perovskite Solar Cells: An Overview Bella, Federico; Renzi, Polyssena; Cavallo, Carmen Chemistry - A European Journal, Vol. 24, Issue 47 https://doi.org/10.1002/chem.201801096	journal	June 2018
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Two‐Dimensional Halide Perovskites in Solar Cells: 2D or not 2D? Ortiz‐Cervantes, Carmen; Carmona‐Monroy, Paulina; Solis‐Ibarra, Diego ChemSusChem, Vol. 12, Issue 8 https://doi.org/10.1002/cssc.201802992	journal	March 2019
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Perovskites for Laser and Detector Applications Das, Saunak; Gholipour, Somayeh; Saliba, Michael ENERGY & ENVIRONMENTAL MATERIALS, Vol. 2, Issue 2 https://doi.org/10.1002/eem2.12044	journal	June 2019
Low Temperature Formation of Ruddlesden-Popper-Type Layered La ₂ CoO ₄ _±δ Perovskite Monitored via In Situ X-ray Powder Diffraction: Low Temperature Formation of Ruddlesden-Popper-Type Layered La ₂ CoO ₄ _±δ Perovskite Monitored via In Situ X-ray Powder Diffraction Ortatatlı, Şeyma; Ternieden, Jan; Weidenthaler, Claudia European Journal of Inorganic Chemistry, Vol. 2018, Issue 48 https://doi.org/10.1002/ejic.201801162	journal	December 2018
Progress of Triple Cation Organometal Halide Perovskite Solar Cells Dong, Chong; Wang, Zhao-Kui; Liao, Liang-Sheng Energy Technology, Vol. 8, Issue 4 https://doi.org/10.1002/ente.201900804	journal	April 2020
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Mode-Locking of All-Fiber Lasers Operating at Both Anomalous and Normal Dispersion Regimes in the C- and L-Bands Using Thin Film of 2D Perovskite Crystallites Hong, Seongjin; Lédée, Ferdinand; Park, Jaedeok Laser & Photonics Reviews, Vol. 12, Issue 11 https://doi.org/10.1002/lpor.201800118	journal	September 2018
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A Review on Halide Perovskites as Color Conversion Layers in White Light Emitting Diode Applications Guner, Tugrul; Demir, Mustafa M. physica status solidi (a), Vol. 215, Issue 13 https://doi.org/10.1002/pssa.201800120	journal	May 2018
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Pseudohalide-Induced 2D (CH 3 NH 3 ) 2 PbI 2 (SCN) 2 Perovskite for Ternary Resistive Memory with High Performance Cheng, Xue-Feng; Hou, Xiang; Zhou, Jin Small, Vol. 14, Issue 12 https://doi.org/10.1002/smll.201703667	journal	February 2018
Metal Halide Perovskites: Synthesis, Ion Migration, and Application in Field-Effect Transistors Liu, Xuhai; Yu, Dejian; Song, Xiufeng Small, Vol. 14, Issue 36 https://doi.org/10.1002/smll.201801460	journal	July 2018
General Nondestructive Passivation by 4‐Fluoroaniline for Perovskite Solar Cells with Improved Performance and Stability Zhao, Shenghe; Xie, Jiangsheng; Cheng, Guanghui Small, Vol. 14, Issue 50 https://doi.org/10.1002/smll.201803350	journal	October 2018
Intrinsic Carrier Transport of Phase-Pure Homologous 2D Organolead Halide Hybrid Perovskite Single Crystals Li, Min-Ken; Chen, Tzu-Pei; Lin, Yen-Fu Small, Vol. 14, Issue 52 https://doi.org/10.1002/smll.201803763	journal	November 2018
Highly Oriented Thin Films of 2D Ruddlesden‐Popper Hybrid Perovskite toward Superfast Response Photodetectors Han, Shiguo; Yao, Yunpeng; Liu, Xitao Small, Vol. 15, Issue 39 https://doi.org/10.1002/smll.201901194	journal	August 2019
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Aromatic Alkylammonium Spacer Cations for Efficient Two-Dimensional Perovskite Solar Cells with Enhanced Moisture and Thermal Stability Thrithamarassery Gangadharan, Deepak; Han, Yujie; Dubey, Ashish Solar RRL, Vol. 2, Issue 4 https://doi.org/10.1002/solr.201700215	journal	February 2018
Excellent Stability of Perovskite Solar Cells by Passivation Engineering Gao, Lili; Huang, Sheng; Chen, Lin Solar RRL, Vol. 2, Issue 8 https://doi.org/10.1002/solr.201800088	journal	May 2018
Interface Engineering in n‐i‐p Metal Halide Perovskite Solar Cells Yang, Zhi; Dou, Jinjuan; Wang, Minqiang Solar RRL, Vol. 2, Issue 12 https://doi.org/10.1002/solr.201800177	journal	September 2018
Melamine Hydroiodide Functionalized MAPbI ₃ Perovskite with Enhanced Photovoltaic Performance and Stability in Ambient Atmosphere Yang, Fu; Kamarudin, Muhammad A.; Hirotani, Daisuke Solar RRL, Vol. 3, Issue 1 https://doi.org/10.1002/solr.201800275	journal	November 2018
Improved Moisture Stability of Perovskite Solar Cells with a Surface-Treated PCBM Layer Hangoma, Pesi Mwitumwa; Ma, Yongchao; Shin, Insoo Solar RRL, Vol. 3, Issue 2 https://doi.org/10.1002/solr.201800289	journal	December 2018
Origin and Suppression of the Graded Phase Distribution in Ruddlesden‐Popper Perovskite Films for Photovoltaic Application Mao, Peng; Zhuang, Jing; Wei, Yuanzhi Solar RRL, Vol. 3, Issue 4 https://doi.org/10.1002/solr.201800357	journal	March 2019
Oriented and Uniform Distribution of Dion–Jacobson Phase Perovskites Controlled by Quantum Well Barrier Thickness Zheng, Yiting; Niu, Tingting; Qiu, Jian Solar RRL, Vol. 3, Issue 9 https://doi.org/10.1002/solr.201900090	journal	May 2019
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Progress in Multifunctional Molecules for Perovskite Solar Cells Zhang, Zhihui; Wu, Jiawen; Li, Sheng Solar RRL https://doi.org/10.1002/solr.201900248	journal	July 2019
Toward a New Energy Era: Self‐Driven Integrated Systems Based on Perovskite Solar Cells Qiu, Jian; Shen, Yue; Li, Bixin Solar RRL, Vol. 3, Issue 11 https://doi.org/10.1002/solr.201900320	journal	September 2019
Unveiling the Importance of Precursor Preparation for Highly Efficient and Stable Phenethylammonium‐Based Perovskite Solar Cells Lee, Da Seul; Kim, Jincheol; Bing, Jueming Solar RRL, Vol. 4, Issue 4 https://doi.org/10.1002/solr.201900463	journal	April 2020
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Solar perovskite thin films with enhanced mechanical, thermal, UV, and moisture stability via vacuum-assisted deposition Pinsuwan, Kusuma; Boonthum, Chirapa; Supasai, Thidarat Journal of Materials Science, Vol. 55, Issue 8 https://doi.org/10.1007/s10853-019-04199-9	journal	November 2019
Improved performance and reproducibility of perovskite solar cells by jointly tuning the hole transport layer and the perovskite layer deposition Sharma, Ashish; Rath, Arup K. Journal of Materials Science: Materials in Electronics, Vol. 29, Issue 15 https://doi.org/10.1007/s10854-018-9382-8	journal	May 2018
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Blue Electrogenerated Chemiluminescence from Halide Perovskite Nanocrystals Wusimanjiang, Yiliyasi; Yadav, Jeetika; Arau, Victoria Journal of Analysis and Testing, Vol. 3, Issue 2 https://doi.org/10.1007/s41664-018-0082-4	journal	January 2019
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Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis Kim, Nam-Koo; Min, Young Hwan; Noh, Seokhwan Scientific Reports, Vol. 7, Issue 1 https://doi.org/10.1038/s41598-017-04690-w	journal	July 2017
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Exploring the effects of interfacial carrier transport layers on device performance and optoelectronic properties of planar perovskite solar cells Khadka, Dhruba B.; Shirai, Yasuhiro; Yanagida, Masatoshi Journal of Materials Chemistry C, Vol. 5, Issue 34 https://doi.org/10.1039/c7tc02822a	journal	January 2017
Degradation of encapsulated perovskite solar cells driven by deep trap states and interfacial deterioration Khadka, Dhruba B.; Shirai, Yasuhiro; Yanagida, Masatoshi Journal of Materials Chemistry C, Vol. 6, Issue 1 https://doi.org/10.1039/c7tc03733c	journal	January 2018
Broadband white-light emission with a high color rendering index in a two-dimensional organic–inorganic hybrid perovskite Wu, Zhenyue; Ji, Chengmin; Sun, Zhihua Journal of Materials Chemistry C, Vol. 6, Issue 5 https://doi.org/10.1039/c7tc04868h	journal	January 2018
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Chemically controlled crystal growth of (CH ₃ NH ₃ ) ₂ AgInBr ₆ Tran, Thao T.; Quintero, Michael A.; Arpino, Kathryn E. CrystEngComm, Vol. 20, Issue 39 https://doi.org/10.1039/c8ce00702k	journal	January 2018
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Controllable growth of two-dimensional perovskite microstructures Fang, Chen; Li, Junze; Wang, Jun CrystEngComm, Vol. 20, Issue 41 https://doi.org/10.1039/c8ce01087k	journal	January 2018
Syntheses of two-dimensional propylammonium lead halide perovskite microstructures by a solution route Ma, Dewei; Xu, Zhousu; Wang, Fangjie CrystEngComm, Vol. 21, Issue 9 https://doi.org/10.1039/c8ce02005a	journal	January 2019
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High performance ambient-air-stable FAPbI ₃ perovskite solar cells with molecule-passivated Ruddlesden–Popper/3D heterostructured film Niu, Tianqi; Lu, Jing; Tang, Ming-Chun Energy & Environmental Science, Vol. 11, Issue 12 https://doi.org/10.1039/c8ee02542h	journal	January 2018
Enhancement in lifespan of halide perovskite solar cells Wang, Qiong; Phung, Nga; Di Girolamo, Diego Energy & Environmental Science, Vol. 12, Issue 3 https://doi.org/10.1039/c8ee02852d	journal	January 2019
Enhanced moisture stability of metal halide perovskite solar cells based on sulfur–oleylamine surface modification Hou, Yu; Zhou, Zi Ren; Wen, Tian Yu Nanoscale Horizons, Vol. 4, Issue 1 https://doi.org/10.1039/c8nh00163d	journal	January 2019
Phase control of quasi-2D perovskites and improved light-emitting performance by excess organic cations and nanoparticle intercalation Han, Yaeeun; Park, Sungbin; Kim, Chaewon Nanoscale, Vol. 11, Issue 8 https://doi.org/10.1039/c8nr07361a	journal	January 2019
Moisture-tolerant supermolecule for the stability enhancement of organic–inorganic perovskite solar cells in ambient air Wei, Dong; Huang, Hao; Cui, Peng Nanoscale, Vol. 11, Issue 3 https://doi.org/10.1039/c8nr07638c	journal	January 2019
(1,4-Butyldiammonium)CdBr ₄ : a layered organic–inorganic hybrid perovskite with a visible-blind ultraviolet photoelectric response Wang, Yuyin; Ji, Chengmin; Liu, Xitao Inorganic Chemistry Frontiers, Vol. 5, Issue 10 https://doi.org/10.1039/c8qi00551f	journal	January 2018
Engineering two-dimensional layered nanomaterials for wearable biomedical sensors and power devices Cao, Xianyi; Halder, Arnab; Tang, Yingying Materials Chemistry Frontiers, Vol. 2, Issue 11 https://doi.org/10.1039/c8qm00356d	journal	January 2018
Totally room-temperature solution-processing method for fabricating flexible perovskite solar cells using an Nb ₂ O ₅ –TiO ₂ electron transport layer Jiang, Jun; Wang, Shubo; Jia, Xuguang RSC Advances, Vol. 8, Issue 23 https://doi.org/10.1039/c8ra01571f	journal	January 2018
Improving the stability and decreasing the trap state density of mixed-cation perovskite solar cells through compositional engineering Poorkazem, Kianoosh; Kelly, Timothy L. Sustainable Energy & Fuels, Vol. 2, Issue 6 https://doi.org/10.1039/c8se00127h	journal	January 2018
Layered hybrid perovskite solar cells based on single-crystalline precursor solutions with superior reproducibility Dang, Yangyang; Wei, Jing; Liu, Xiaolong Sustainable Energy & Fuels, Vol. 2, Issue 10 https://doi.org/10.1039/c8se00213d	journal	January 2018
Versatile perovskite solar cell encapsulation by low-temperature ALD-Al ₂ O ₃ with long-term stability improvement Ramos, F. Javier; Maindron, Tony; Béchu, Solène Sustainable Energy & Fuels, Vol. 2, Issue 11 https://doi.org/10.1039/c8se00282g	journal	January 2018
2D layered organic–inorganic heterostructures for clean energy applications Azadmanjiri, Jalal; Wang, James; Berndt, Christopher C. Journal of Materials Chemistry A, Vol. 6, Issue 9 https://doi.org/10.1039/c8ta00132d	journal	January 2018
First-principles insights into tin-based two-dimensional hybrid halide perovskites for photovoltaics Wang, Zhenyu; Ganose, Alex M.; Niu, Chunming Journal of Materials Chemistry A, Vol. 6, Issue 14 https://doi.org/10.1039/c8ta00751a	journal	January 2018
Recent progressive efforts in perovskite solar cells toward commercialization Kim, Byeong Jo; Lee, Sangwook; Jung, Hyun Suk Journal of Materials Chemistry A, Vol. 6, Issue 26 https://doi.org/10.1039/c8ta02159g	journal	January 2018
Efficient solar cells with enhanced humidity and heat stability based on benzylammonium–caesium–formamidinium mixed-dimensional perovskites Liu, Guozhen; Zheng, Haiying; Xu, Xiaoxiao Journal of Materials Chemistry A, Vol. 6, Issue 37 https://doi.org/10.1039/c8ta04936j	journal	January 2018
Identifying and controlling phase purity in 2D hybrid perovskite thin films Hu, Yinghong; Spies, Laura M.; Alonso-Álvarez, Diego Journal of Materials Chemistry A, Vol. 6, Issue 44 https://doi.org/10.1039/c8ta05475d	journal	January 2018
Interfacial engineering enables high efficiency with a high open-circuit voltage above 1.23 V in 2D perovskite solar cells Chen, Jiehuan; Lian, Xiaomei; Zhang, Yingzhu Journal of Materials Chemistry A, Vol. 6, Issue 37 https://doi.org/10.1039/c8ta06925e	journal	January 2018
A simple method for phase control in two-dimensional perovskite solar cells Ma, Chunqing; Lo, Ming-Fai; Lee, Chun-Sing Journal of Materials Chemistry A, Vol. 6, Issue 39 https://doi.org/10.1039/c8ta06976j	journal	January 2018
Efficient ambient-air-stable HTM-free carbon-based perovskite solar cells with hybrid 2D–3D lead halide photoabsorbers Zhou, Junshuai; Ye, Zhili; Hou, Jie Journal of Materials Chemistry A, Vol. 6, Issue 45 https://doi.org/10.1039/c8ta07836j	journal	January 2018
Multi-layered hybrid perovskites templated with carbazole derivatives: optical properties, enhanced moisture stability and solar cell characteristics Herckens, Roald; Van Gompel, Wouter T. M.; Song, Wenya Journal of Materials Chemistry A, Vol. 6, Issue 45 https://doi.org/10.1039/c8ta08019d	journal	January 2018
Enabling room-temperature processed highly efficient and stable 2D Ruddlesden–Popper perovskite solar cells with eliminated hysteresis by synergistic exploitation of additives and solvents Yu, Shuang; Yan, Yajie; Chen, Yani Journal of Materials Chemistry A, Vol. 7, Issue 5 https://doi.org/10.1039/c8ta09146c	journal	January 2019
First-principles characterization of two-dimensional (CH ₃ (CH ₂ ) ₃ NH ₃ ) ₂ (CH ₃ NH ₃ ) _n−1 Ge _n I _3n+1 perovskite Wu, Liyuan; Lu, Pengfei; Li, Yuheng Journal of Materials Chemistry A, Vol. 6, Issue 47 https://doi.org/10.1039/c8ta10055a	journal	January 2018
Stability progress of perovskite solar cells dependent on the crystalline structure: From 3D ABX ₃ to 2D Ruddlesden–Popper perovskite absorbers Arabpour Roghabadi, Farzaneh; Alidaei, Maryam; Mousavi, Seyede Maryam Journal of Materials Chemistry A, Vol. 7, Issue 11 https://doi.org/10.1039/c8ta10444a	journal	January 2019
Lithium-ion batteries: outlook on present, future, and hybridized technologies Kim, Taehoon; Song, Wentao; Son, Dae-Yong Journal of Materials Chemistry A, Vol. 7, Issue 7 https://doi.org/10.1039/c8ta10513h	journal	January 2019
Emission enhancement and bandgap retention of a two-dimensional mixed cation lead halide perovskite under high pressure Chen, Yaping; Fu, Ruijing; Wang, Lingrui Journal of Materials Chemistry A, Vol. 7, Issue 11 https://doi.org/10.1039/c8ta11992a	journal	January 2019
Photo-oxidative degradation of methylammonium lead iodide perovskite: mechanism and protection Ouyang, Yixin; Li, Yajuan; Zhu, Pengchen Journal of Materials Chemistry A, Vol. 7, Issue 5 https://doi.org/10.1039/c8ta12193a	journal	January 2019
Binary organic spacer-based quasi-two-dimensional perovskites with preferable vertical orientation and efficient charge transport for high-performance planar solar cells Chen, Shi; Shen, Nan; Zhang, Luozheng Journal of Materials Chemistry A, Vol. 7, Issue 16 https://doi.org/10.1039/c8ta12476k	journal	January 2019
Promising photovoltaic and solid-state-lighting materials: two-dimensional Ruddlesden–Popper type lead-free halide double perovskites Cs _n+1 In _n/2 Sb _n/2 I _3n+1 ( n = 3) and Cs _n+1 In _n/2 Sb _n/2 Cl _3n+1 /Cs _m+1 Cu _m/2 Bi _m/2 Cl _3m+1 ( n = 3, m = 1) Wu, Meng; Shi, Jun-jie; Zhang, Min Journal of Materials Chemistry C, Vol. 6, Issue 43 https://doi.org/10.1039/c8tc03926g	journal	January 2018
Quantifying multiple crystallite orientations and crystal heterogeneities in complex thin film materials Ogle, Jonathan; Powell, Daniel; Amerling, Eric CrystEngComm, Vol. 21, Issue 38 https://doi.org/10.1039/c9ce01010f	journal	January 2019
Optical deformation potential and self-trapped excitons in 2D hybrid perovskites Yu, Zhi-Gang Physical Chemistry Chemical Physics, Vol. 21, Issue 40 https://doi.org/10.1039/c9cp03080h	journal	January 2019
Enhanced V _OC of two-dimensional Ruddlesden–Popper perovskite solar cells using binary synergetic organic spacer cations Meng, Juan; Song, Dandan; Huang, Di Physical Chemistry Chemical Physics, Vol. 22, Issue 1 https://doi.org/10.1039/c9cp04018h	journal	January 2020
Phthalocyanines and porphyrinoid analogues as hole- and electron-transporting materials for perovskite solar cells Urbani, Maxence; de la Torre, Gema; Nazeeruddin, Mohammad Khaja Chemical Society Reviews, Vol. 48, Issue 10 https://doi.org/10.1039/c9cs00059c	journal	January 2019
The charge carrier dynamics, efficiency and stability of two-dimensional material-based perovskite solar cells Wang, Bing; Iocozzia, James; Zhang, Meng Chemical Society Reviews, Vol. 48, Issue 18 https://doi.org/10.1039/c9cs00254e	journal	January 2019
Enhanced yield-mobility products in hybrid halide Ruddlesden–Popper compounds with aromatic ammonium spacers Venkatesan, Naveen R.; Mahdi, Ali; Barraza, Brian Dalton Transactions, Vol. 48, Issue 37 https://doi.org/10.1039/c9dt03074c	journal	January 2019
An interface stabilized perovskite solar cell with high stabilized efficiency and low voltage loss Yoo, Jason J.; Wieghold, Sarah; Sponseller, Melany C. Energy & Environmental Science, Vol. 12, Issue 7 https://doi.org/10.1039/c9ee00751b	journal	January 2019
Searching for stability at lower dimensions: current trends and future prospects of layered perovskite solar cells Thrithamarassery Gangadharan, Deepak; Ma, Dongling Energy & Environmental Science, Vol. 12, Issue 10 https://doi.org/10.1039/c9ee01591d	journal	January 2019
The impact of energy alignment and interfacial recombination on the internal and external open-circuit voltage of perovskite solar cells Stolterfoht, Martin; Caprioglio, Pietro; Wolff, Christian M. Energy & Environmental Science, Vol. 12, Issue 9 https://doi.org/10.1039/c9ee02020a	journal	January 2019
Broadband white light emission from one-dimensional zigzag edge-sharing perovskite Jung, Mi-Hee New Journal of Chemistry, Vol. 44, Issue 1 https://doi.org/10.1039/c9nj04758a	journal	January 2020
All-polymer methylammonium lead iodide perovskite microcavities Lova, Paola; Giusto, Paolo; Di Stasio, Francesco Nanoscale, Vol. 11, Issue 18 https://doi.org/10.1039/c9nr01422e	journal	January 2019
Single-phase alkylammonium cesium lead iodide quasi-2D perovskites for color-tunable and spectrum-stable red LEDs Lin, Hong; Mao, Jian; Qin, Minchao Nanoscale, Vol. 11, Issue 36 https://doi.org/10.1039/c9nr02706h	journal	January 2019
Understanding the mechanism of metal-induced degradation in perovskite nanocrystals Saris, Seryio; Niemann, Valerie; Mantella, Valeria Nanoscale, Vol. 11, Issue 41 https://doi.org/10.1039/c9nr06328e	journal	January 2019
Liquid-phase growth and optoelectronic properties of two-dimensional hybrid perovskites CH ₃ NH ₃ PbX ₃ (X = Cl, Br, I) Bai, Yu; Zhang, Haixin; Zhang, Mingjing Nanoscale, Vol. 12, Issue 2 https://doi.org/10.1039/c9nr07981e	journal	January 2020
A two-dimensional bilayered Dion–Jacobson-type perovskite hybrid with a narrow bandgap for broadband photodetection Fu, Dongying; Yuan, Jianrong; Wu, Shichao Inorganic Chemistry Frontiers, Vol. 7, Issue 6 https://doi.org/10.1039/c9qi01540j	journal	January 2020
Two-dimensional additive diethylammonium iodide promoting crystal growth for efficient and stable perovskite solar cells Huang, Xin; Cui, Qiuhong; Bi, Wentao RSC Advances, Vol. 9, Issue 14 https://doi.org/10.1039/c9ra01186b	journal	January 2019
Electronic and optical absorption properties of organic–inorganic perovskites as influenced by different long-chain diamine molecules: first-principles calculations Zhou, Wangzhe; Li, Dan; Zhang, Di RSC Advances, Vol. 9, Issue 26 https://doi.org/10.1039/c9ra03042e	journal	January 2019
A photo-crosslinkable bis-triarylamine side-chain polymer as a hole-transport material for stable perovskite solar cells Tremblay, Marie-Hélène; Schutt, Kelly; Zhang, Yadong Sustainable Energy & Fuels, Vol. 4, Issue 1 https://doi.org/10.1039/c9se00513g	journal	January 2020
Orientationally engineered 2D/3D perovskite for high efficiency solar cells Abbas, Muhammad Sohail; Hussain, Sabir; Zhang, Jinaqi Sustainable Energy & Fuels, Vol. 4, Issue 1 https://doi.org/10.1039/c9se00817a	journal	January 2020
High performance low-dimensional perovskite solar cells based on a one dimensional lead iodide perovskite Ma, Chunqing; Shen, Dong; Huang, Bin Journal of Materials Chemistry A, Vol. 7, Issue 15 https://doi.org/10.1039/c9ta01859j	journal	January 2019
Band engineering of two-dimensional Ruddlesden–Popper perovskites for solar utilization: the relationship between chemical components and electronic properties Chen, An; Zhang, Xu; Zhang, Zihe Journal of Materials Chemistry A, Vol. 7, Issue 18 https://doi.org/10.1039/c9ta01882d	journal	January 2019
(C ₆ H ₅ NH ₃ )BiI ₄ : a lead-free perovskite with >330 days humidity stability for optoelectronic applications Li, Xiao-Lei; Gao, Li-Li; Ding, Bin Journal of Materials Chemistry A, Vol. 7, Issue 26 https://doi.org/10.1039/c9ta02421b	journal	January 2019
Engineering the underlying surface to manipulate the growth of 2D perovskites for highly efficient solar cells Tian, Shuoxun; Chen, Jiehuan; Lian, Xiaomei Journal of Materials Chemistry A, Vol. 7, Issue 23 https://doi.org/10.1039/c9ta03022k	journal	January 2019
Unique characteristics of 2D Ruddlesden–Popper (2DRP) perovskite for future photovoltaic application Zheng, Yiting; Niu, Tingting; Ran, Xueqin Journal of Materials Chemistry A, Vol. 7, Issue 23 https://doi.org/10.1039/c9ta03217g	journal	January 2019
Metal halide perovskites under compression Li, Qian; Zhang, Liming; Chen, Zhongwei Journal of Materials Chemistry A, Vol. 7, Issue 27 https://doi.org/10.1039/c9ta04930d	journal	January 2019
Reducing trap density and carrier concentration by a Ge additive for an efficient quasi 2D/3D perovskite solar cell Ng, Chi Huey; Hamada, Kengo; Kapil, Gaurav Journal of Materials Chemistry A, Vol. 8, Issue 6 https://doi.org/10.1039/c9ta11989b	journal	January 2020
Strong thickness-dependent quantum confinement in all-inorganic perovskite Cs ₂ PbI ₄ with a Ruddlesden–Popper structure Ding, Yu-Feng; Zhao, Qian-Qi; Yu, Zhuo-Liang Journal of Materials Chemistry C, Vol. 7, Issue 24 https://doi.org/10.1039/c9tc02267h	journal	January 2019
Methylamine-induced defect-healing and cationic substitution: a new method for low-defect perovskite thin films and solar cells Yang, Jin-an; Qin, Tianxu; Xie, Lisha Journal of Materials Chemistry C, Vol. 7, Issue 35 https://doi.org/10.1039/c9tc03490k	journal	January 2019
Barium acetate as an additive for high performance perovskite solar cells Wang, Yueming; Wu, Yulei; Fu, Sheng Journal of Materials Chemistry C, Vol. 7, Issue 37 https://doi.org/10.1039/c9tc04067f	journal	January 2019
The role of excitons in 3D and 2D lead halide perovskites Marongiu, Daniela; Saba, Michele; Quochi, Francesco Journal of Materials Chemistry C, Vol. 7, Issue 39 https://doi.org/10.1039/c9tc04292j	journal	January 2019
In situ growth of a 2D/3D mixed perovskite interface layer by seed-mediated and solvent-assisted Ostwald ripening for stable and efficient photovoltaics Li, Shiqi; Hu, Lina; Zhang, Chenxi Journal of Materials Chemistry C, Vol. 8, Issue 7 https://doi.org/10.1039/c9tc05212g	journal	January 2020
Exciton-band tuning induced by the width of the cation in 2D lead iodide perovskite hybrids Tremblay, Marie-Hélène; Bacsa, John; Barlow, Stephen Materials Chemistry Frontiers https://doi.org/10.1039/d0qm00118j	journal	January 2020
Cystamine-configured lead halide based 2D hybrid molecular crystals: Synthesis and photoluminescence systematics Krishnamurthy, Shrreya; Kour, Prachi; Katre, Ankita APL Materials, Vol. 6, Issue 11 https://doi.org/10.1063/1.5042268	journal	November 2018
Trap states in multication mesoscopic perovskite solar cells: A deep levels transient spectroscopy investigation Polyakov, A. Y.; Smirnov, N. B.; Shchemerov, I. V. Applied Physics Letters, Vol. 113, Issue 26 https://doi.org/10.1063/1.5053845	journal	December 2018
Dielectric and ferroic properties of metal halide perovskites Wilson, Jacob N.; Frost, Jarvist M.; Wallace, Suzanne K. APL Materials, Vol. 7, Issue 1 https://doi.org/10.1063/1.5079633	journal	January 2019
Preface: Two dimensional (2D) hybrid organic-inorganic perovskites Li, Wei; Docampo, Pablo; Mohite, Aditya D. APL Materials, Vol. 6, Issue 11 https://doi.org/10.1063/1.5079945	journal	November 2018
Scaling of the free and the relaxed exciton in perovskites (RNH ₃ ) ₂ (CH ₃ NH ₃ ) _{p −1} Pb _p I _{3 p +1} large sized monolayers Zahra, Haitham; Ayari, Sabrine; Jaziri, Sihem Journal of Applied Physics, Vol. 126, Issue 8 https://doi.org/10.1063/1.5110506	journal	August 2019
Long-lived charge separation in two-dimensional ligand-perovskite heterostructures Deng, Shibin; Snaider, Jordan M.; Gao, Yao The Journal of Chemical Physics, Vol. 152, Issue 4 https://doi.org/10.1063/1.5131801	journal	January 2020
Electric-field-induced phase transition in 2D layered perovskite (BA) ₂ PbI ₄ microplate crystals Wang, Jiaqi; Shen, Hongzhi; Li, Junze Applied Physics Letters, Vol. 116, Issue 5 https://doi.org/10.1063/1.5132825	journal	February 2020
Isothermal pressure-derived metastable states in 2D hybrid perovskites showing enduring bandgap narrowing Liu, Gang; Gong, Jue; Kong, Lingping Proceedings of the National Academy of Sciences, Vol. 115, Issue 32 https://doi.org/10.1073/pnas.1809167115	journal	July 2018
Synthesis and optical applications of low dimensional metal-halide perovskites Liu, Jingying; Chen, Keqiang; Khan, Sayed Ali Nanotechnology, Vol. 31, Issue 15 https://doi.org/10.1088/1361-6528/ab5a19	journal	January 2020
Recent progress in stability of perovskite solar cells Qin, Xiaojun; Zhao, Zhiguo; Wang, Yidan Journal of Semiconductors, Vol. 38, Issue 1 https://doi.org/10.1088/1674-4926/38/1/011002	journal	January 2017
Recent progress towards roll-to-roll manufacturing of perovskite solar cells using slot-die processing Li, Hengyue; Zuo, Chuantian; Scully, Andrew D. Flexible and Printed Electronics, Vol. 5, Issue 1 https://doi.org/10.1088/2058-8585/ab639e	journal	January 2020
Inorganic–organic halide perovskites for new photovoltaic technology Li, Dongmei; Shi, Jiangjian; Xu, Yuzhuan National Science Review, Vol. 5, Issue 4 https://doi.org/10.1093/nsr/nwx100	journal	August 2017
Influence of π -conjugated cations and halogen substitution on the optoelectronic and excitonic properties of layered hybrid perovskites Leveillee, Joshua; Katan, Claudine; Zhou, Liujiang Physical Review Materials, Vol. 2, Issue 10 https://doi.org/10.1103/physrevmaterials.2.105406	journal	October 2018
Band gap evolution in Ruddlesden-Popper phases Li, Wei; Niu, Shanyuan; Zhao, Boyang Physical Review Materials, Vol. 3, Issue 10 https://doi.org/10.1103/physrevmaterials.3.101601	journal	October 2019
Structural and optical properties of 2D Ruddlesden‐Popper perovskite (BA) ₂ (FA) _n−1 Pb _n I _3n+1 compounds for photovoltaic applications Lan, Chunfeng; Liang, Guangxing; Zhao, Shuai Journal of the American Ceramic Society, Vol. 102, Issue 7 https://doi.org/10.1111/jace.16284	journal	January 2019
Distinct conducting layer edge states in two-dimensional (2D) halide perovskite Wang, Kai; Wu, Congcong; Jiang, Yuanyuan Science Advances, Vol. 5, Issue 7 https://doi.org/10.1126/sciadv.aau3241	journal	July 2019
An organic-inorganic perovskite ferroelectric with large piezoelectric response You, Yu-Meng; Liao, Wei-Qiang; Zhao, Dewei Science, Vol. 357, Issue 6348 https://doi.org/10.1126/science.aai8535	journal	July 2017
Efficient and stable solution-processed planar perovskite solar cells via contact passivation Tan, Hairen; Jain, Ankit; Voznyy, Oleksandr Science, Vol. 355, Issue 6326 https://doi.org/10.1126/science.aai9081	journal	February 2017
Extremely efficient internal exciton dissociation through edge states in layered 2D perovskites Blancon, J. -C.; Tsai, H.; Nie, W. Science, Vol. 355, Issue 6331 https://doi.org/10.1126/science.aal4211	journal	March 2017
Promises and challenges of perovskite solar cells Correa-Baena, Juan-Pablo; Saliba, Michael; Buonassisi, Tonio Science, Vol. 358, Issue 6364 https://doi.org/10.1126/science.aam6323	journal	November 2017
Enhanced Power Conversion Efficiency of Perovskite Solar Cells with an Up-Conversion Material of Er3+-Yb3+-Li+ Tri-doped TiO2 Zhang, Zhenlong; Qin, Jianqiang; Shi, Wenjia Nanoscale Research Letters, Vol. 13, Issue 1 https://doi.org/10.1186/s11671-018-2545-y	journal	May 2018
Random lasing in uniform perovskite thin films Safdar, Amma; Wang, Yue; Krauss, Thomas F. Optics Express, Vol. 26, Issue 2 https://doi.org/10.1364/oe.26.000a75	journal	December 2017
Detailed balance analysis of plasmonic metamaterial perovskite solar cells Kim, Kwangjin; Lee, Seungwoo Optics Express, Vol. 27, Issue 16 https://doi.org/10.1364/oe.27.0a1241	journal	January 2019
Coherent Spin and Quasiparticle Dynamics in Solution-Processed Layered 2D Lead Halide Perovskites. Giovanni, David; Chong, Wee Kiang; Liu, Yu Yang Fredrik Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.36060	text	January 2018
Controlling the Growth Kinetics and Optoelectronic Properties of 2D/3D Lead–Tin Perovskite Heterojunctions Ruggeri, Edoardo; Anaya, Miguel; Gałkowski, Krzysztof Apollo - University of Cambridge Repository https://doi.org/10.17863/cam.45923	text	January 2019
A Review: Thermal Stability of Methylammonium Lead Halide Based Perovskite Solar Cells Ava, Tanzila Tasnim; Al Mamun, Abdullah; Marsillac, Sylvain Applied Sciences, Vol. 9, Issue 1 https://doi.org/10.3390/app9010188	journal	January 2019
Nanostructured Perovskite Solar Cells McDonald, Calum; Ni, Chengsheng; Maguire, Paul Nanomaterials, Vol. 9, Issue 10 https://doi.org/10.3390/nano9101481	journal	October 2019
Band-edge Exciton Fine Structure and Exciton Recombination Dynamics in Single crystals of Layered Hybrid Perovskites Fang, Hong-Hua; Yang, Jie; Adjokatse, Sampson arXiv https://doi.org/10.48550/arxiv.1909.11589	preprint	January 2019
Engineering Multiphase Metal Halide Perovskites Thin Films for Stable and Efficient Solar Cells Kim, Min; Figueroa-Tapia, Jetsabel M.; Prato, Mirko Zenodo https://doi.org/10.5281/zenodo.3738931	text	January 2020