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

Abstract

Three-dimensional organic–inorganic perovskites have emerged as one of the most promising thin-film solar cell materials owing to their remarkable photophysical properties1–5, which have led to power conversion efficiencies exceeding 20 per cent6,7, with the prospect of further improvements towards the Shockley– Queisser limit for a single-junction solar cell (33.5 per cent)8. Besides efficiency, another critical factor for photovoltaics and other optoelectronic applications is environmental stability and photostability under operating conditions9–15. 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 cent13,16,17. 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. Unencapsulatedmore » 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. 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.« less

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2];  [3];  [4];  [5]; ORCiD logo [2];  [6]; ORCiD logo [2]; ORCiD logo [2];  [7];  [7];  [4];  [2];  [8];  [8];  [5];  [3]; ORCiD logo [2]
+ Show Author Affiliations
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Rice Univ., Houston, TX (United States). Dept. of Materials Science and Nanoengineering
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. 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
  4. Purdue Univ., West Lafayette, IN (United States). School of Electrical and Computer Engineering
  5. 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
  6. 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
  7. Fonctions Optiques pour les Technologies de l’Information (FOTON), Rennes (France)
  8. Rice Univ., Houston, TX (United States). Dept. of Materials Science and Nanoengineering
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Stanford Univ., CA (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1492605
Alternate Identifier(s):
OSTI ID: 1579836
Report Number(s):
LA-UR-17-22530
Journal ID: ISSN 0028-0836
Grant/Contract Number:  
89233218CNA000001; EE0004946; DMR-1352099
Resource Type:
Accepted Manuscript
Journal Name:
Nature (London)
Additional Journal Information:
Journal Name: Nature (London); Journal Volume: 536; Journal Issue: 7616; Journal ID: ISSN 0028-0836
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 25 ENERGY STORAGE

Citation Formats

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., and Mohite, Aditya. High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells. United States: N. p., 2016. Web. doi:10.1038/nature18306.
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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. High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells. United States. https://doi.org/10.1038/nature18306
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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., and Mohite, Aditya. Wed . "High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells". United States. https://doi.org/10.1038/nature18306. https://www.osti.gov/servlets/purl/1492605.
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@article{osti_1492605,
title = {High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells},
author = {Tsai, Hsinhan and Nie, Wanyi and Blancon, Jean-Christophe Robert and Stoumpos, Constantinos C. and Asadpour, Reza and Harutyunyan, Boris and Neukirch, Amanda J. and Verduzco, Rafael and Crochet, Jared John and Tretiak, Sergei and Pedesseau, Laurent and Even, Jacky and Alam, Muhammad A. and Gupta, Gautam and Lou, Jun and Ajayan, Pulickel M. and Bedzyk, Michael J. and Kanatzidis, Mercouri G. and Mohite, Aditya},
abstractNote = {Three-dimensional organic–inorganic perovskites have emerged as one of the most promising thin-film solar cell materials owing to their remarkable photophysical properties1–5, which have led to power conversion efficiencies exceeding 20 per cent6,7, with the prospect of further improvements towards the Shockley– Queisser limit for a single-junction solar cell (33.5 per cent)8. Besides efficiency, another critical factor for photovoltaics and other optoelectronic applications is environmental stability and photostability under operating conditions9–15. 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 cent13,16,17. 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. 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.},
doi = {10.1038/nature18306},
journal = {Nature (London)},
number = 7616,
volume = 536,
place = {United States},
year = {Wed Jul 06 00:00:00 EDT 2016},
month = {Wed Jul 06 00:00:00 EDT 2016}
}
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Figures / Tables:

Figure 1 Figure 1: | Crystal structure and thin-film characterization of layered perovskites. a, The crystal structure of the Ruddlesden–Popper (BA)2(MA)2Pb3I10 and (BA)2(MA)3Pb4I13 layered perovskites, depicted as n polyhedral blocks, where n refers to the number of layers; the BA spacer layers are depicted as space-fill models to illustrate the termination ofmore » the perovskite layers. b, Photos of (BA)2(MA)3Pb4I13 thin films cast from room temperature (RT) to 150 °C. The film colour gets darker with increasing temperature. c, Comparison of GIXRD spectra for room-temperaturecast (black dashed line) and hot-cast (red line) (BA)2(MA)3Pb4I13 films, respectively. The (111), (202) and (313) labels correspond to preferred diffraction planes. d, The full-width at half-maximum (FWHM) of GIXRD peak (202) as a function of temperature from room temperature to 150 °C. The inset shows the FWHM for each plane indicated in c. e, Absorbance of a 370-nm thin film (n = 4) measured in an integrating sphere (grey circles) and with confocal microscopy (black line), along with the photoluminescence spectra for excitation at 1.96 eV (red line). a.u., arbitrary units.« less
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    Dual Emission of Water‐Stable 2D Organic–Inorganic Halide Perovskites with Mn(II) Dopant
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    Highly Stable Two‐Dimensional Tin(II) Iodide Hybrid Organic–Inorganic Perovskite Based on Stilbene Derivative
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    Highly Efficient and Stable Solar Cells Based on Crystalline Oriented 2D/3D Hybrid Perovskite
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    Aminosilane‐Modified CuGaO 2 Nanoparticles Incorporated with CuSCN as a Hole‐Transport Layer for Efficient and Stable Perovskite Solar Cells
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    Molecular and Self-Trapped Excitonic Contributions to the Broadband Luminescence in Diamine-Based Low-Dimensional Hybrid Perovskite Systems
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    Management of Crystallization Kinetics for Efficient and Stable Low-Dimensional Ruddlesden-Popper (LDRP) Lead-Free Perovskite Solar Cells
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    Multilayered PdSe 2 /Perovskite Schottky Junction for Fast, Self‐Powered, Polarization‐Sensitive, Broadband Photodetectors, and Image Sensor Application
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    Direct Evidence of Ion Diffusion for the Silver-Electrode-Induced Thermal Degradation of Inverted Perovskite Solar Cells
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    Structure of Organometal Halide Perovskite Films as Determined with Grazing-Incidence X-Ray Scattering Methods
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    Exploring Inorganic Binary Alkaline Halide to Passivate Defects in Low-Temperature-Processed Planar-Structure Hybrid Perovskite Solar Cells
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    Electron‐Beam‐Evaporated Nickel Oxide Hole Transport Layers for Perovskite‐Based Photovoltaics
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    Record Open‐Circuit Voltage Wide‐Bandgap Perovskite Solar Cells Utilizing 2D/3D Perovskite Heterostructure
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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
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    Engineering Multiphase Metal Halide Perovskites Thin Films for Stable and Efficient Solar Cells
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    Highly Emissive Self-Trapped Excitons in Fully Inorganic Zero-Dimensional Tin Halides
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    All-Inorganic CsPb 1− x Ge x I 2 Br Perovskite with Enhanced Phase Stability and Photovoltaic Performance
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    Dimensional Reduction of Cs 2 AgBiBr 6 : A 2D Hybrid Double Perovskite with Strong Polarization Sensitivity
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    CsPb 2 Br 5 Single Crystals: Synthesis and Characterization
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    Perovskites for Laser and Detector Applications
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    Progress of Triple Cation Organometal Halide Perovskite Solar Cells
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    A Review on Halide Perovskites as Color Conversion Layers in White Light Emitting Diode Applications
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    High Performance Metal Halide Perovskite Light-Emitting Diode: From Material Design to Device Optimization
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    Intrinsic Carrier Transport of Phase-Pure Homologous 2D Organolead Halide Hybrid Perovskite Single Crystals
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    All-Inorganic Halide Perovskites for Optoelectronics: Progress and Prospects
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    Melamine Hydroiodide Functionalized MAPbI 3 Perovskite with Enhanced Photovoltaic Performance and Stability in Ambient Atmosphere
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    Oriented and Uniform Distribution of Dion–Jacobson Phase Perovskites Controlled by Quantum Well Barrier Thickness
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    Solar perovskite thin films with enhanced mechanical, thermal, UV, and moisture stability via vacuum-assisted deposition
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    Improved performance and reproducibility of perovskite solar cells by jointly tuning the hole transport layer and the perovskite layer deposition
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    Stability improvement under high efficiency—next stage development of perovskite solar cells
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    Scaling law for excitons in 2D perovskite quantum wells
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    Prospects for low-toxicity lead-free perovskite solar cells
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    Low-dimensional catalysts for hydrogen evolution and CO2 reduction
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    Investigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis
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    Semiconductor plasmon-sensitized broadband upconversion and its enhancement effect on the power conversion efficiency of perovskite solar cells
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    Degradation of encapsulated perovskite solar cells driven by deep trap states and interfacial deterioration
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    Engineering two-dimensional layered nanomaterials for wearable biomedical sensors and power devices
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    Improving the stability and decreasing the trap state density of mixed-cation perovskite solar cells through compositional engineering
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    Stability progress of perovskite solar cells dependent on the crystalline structure: From 3D ABX 3 to 2D Ruddlesden–Popper perovskite absorbers
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    Lithium-ion batteries: outlook on present, future, and hybridized technologies
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    Broadband white light emission from one-dimensional zigzag edge-sharing perovskite
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    Methylamine-induced defect-healing and cationic substitution: a new method for low-defect perovskite thin films and solar cells
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    Barium acetate as an additive for high performance perovskite solar cells
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    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
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    Electric-field-induced phase transition in 2D layered perovskite (BA) 2 PbI 4 microplate crystals
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    Structural and optical properties of 2D Ruddlesden‐Popper perovskite (BA) 2 (FA) n−1 Pb n I 3n+1 compounds for photovoltaic applications
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    Promises and challenges of perovskite solar cells
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    Enhanced Power Conversion Efficiency of Perovskite Solar Cells with an Up-Conversion Material of Er3+-Yb3+-Li+ Tri-doped TiO2
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    Precursor Solution Annealing Forms Cubic-Phase Perovskite and Improves Humidity Resistance of Solar Cells
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    A Review of Perovskites Solar Cell Stability
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    Two-Dimensional Materials for Halide Perovskite-Based Optoelectronic Devices
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    Emerging Semitransparent Solar Cells: Materials and Device Design
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    Divalent Anionic Doping in Perovskite Solar Cells for Enhanced Chemical Stability
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    Merits and Challenges of Ruddlesden-Popper Soft Halide Perovskites in Electro-Optics and Optoelectronics
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    Defect and Contact Passivation for Perovskite Solar Cells
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    The Role of Bulk and Interface Recombination in High‐Efficiency Low‐Dimensional Perovskite Solar Cells
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    Orientation Engineering in Low‐Dimensional Crystal‐Structural Materials via Seed Screening
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    Defect Engineering toward Highly Efficient and Stable Perovskite Solar Cells
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    Sodium Ion Modifying In Situ Fabricated CsPbBr 3 Nanoparticles for Efficient Perovskite Light Emitting Diodes
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    Diammonium and Monoammonium Mixed-Organic-Cation Perovskites for High Performance Solar Cells with Improved Stability
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    Surface Electronic Modification of Perovskite Thin Film with Water-Resistant Electron Delocalized Molecules for Stable and Efficient Photovoltaics
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    The Effect of Hydrophobicity of Ammonium Salts on Stability of Quasi-2D Perovskite Materials in Moist Condition
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    High‐Performance Perovskite Solar Cells with Enhanced Environmental Stability Based on a ( p ‐FC 6 H 4 C 2 H 4 NH 3 ) 2 [PbI 4 ] Capping Layer
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    Compositional and Solvent Engineering in Dion-Jacobson 2D Perovskites Boosts Solar Cell Efficiency and Stability
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    Reverse‐Graded 2D Ruddlesden–Popper Perovskites for Efficient Air‐Stable Solar Cells
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    Thousand‐fold Conductivity Increase in 2D Perovskites by Polydiacetylene Incorporation and Doping
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    All-Inorganic CsPb 1− x Ge x I 2 Br Perovskite with Enhanced Phase Stability and Photovoltaic Performance
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    The Second Spacer Cation Assisted Growth of a 2D Perovskite Film with Oriented Large Grain for Highly Efficient and Stable Solar Cells
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    Caesium for Perovskite Solar Cells: An Overview
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    Two-Dimensional Metal Halide Perovskites: Theory, Synthesis, and Optoelectronics
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    Perovskite Solar Absorbers: Materials by Design
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    Interface Engineering in n‐i‐p Metal Halide Perovskite Solar Cells
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    Two-dimensional organic-inorganic hybrid perovskite: from material properties to device applications
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    Transcending the slow bimolecular recombination in lead-halide perovskites for electroluminescence
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    Perovskite solar cells: Stability lies at interfaces
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    Tailoring vertical phase distribution of quasi-two-dimensional perovskite films via surface modification of hole-transporting layer
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    Synthetic control over orientational degeneracy of spacer cations enhances solar cell efficiency in two-dimensional perovskites
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    Atomic-level passivation mechanism of ammonium salts enabling highly efficient perovskite solar cells
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    The formation of perovskite multiple quantum well structures for high performance light-emitting diodes
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    Solvent-dependent self-assembly of two dimensional layered perovskite (C6H5CH2CH2NH3)2MCl4 (M = Cu, Mn) thin films in ambient humidity
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    Layered hybrid perovskite solar cells based on single-crystalline precursor solutions with superior reproducibility
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    Quantifying multiple crystallite orientations and crystal heterogeneities in complex thin film materials
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    Enhanced yield-mobility products in hybrid halide Ruddlesden–Popper compounds with aromatic ammonium spacers
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    Orientationally engineered 2D/3D perovskite for high efficiency solar cells
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    High performance low-dimensional perovskite solar cells based on a one dimensional lead iodide perovskite
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    Engineering the underlying surface to manipulate the growth of 2D perovskites for highly efficient solar cells
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    Material challenges for solar cells in the twenty-first century: directions in emerging technologies
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    Giant Rashba splitting in 2D organic-inorganic halide perovskites measured by transient spectroscopies
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    Efficient and stable solution-processed planar perovskite solar cells via contact passivation
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    Perovskites for Light Emission
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    Integrated Perovskite/Bulk‐Heterojunction Organic Solar Cells
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    Recent Progress in Metal Halide Perovskite Micro‐ and Nanolasers
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    Hybrid Perovskites: Prospects for Concentrator Solar Cells
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    Tailoring Organic Cation of 2D Air-Stable Organometal Halide Perovskites for Highly Efficient Planar Solar Cells
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    Ruddlesden–Popper 2D Component to Stabilize γ‐CsPbI 3 Perovskite Phase for Stable and Efficient Photovoltaics
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    A Two-Dimensional Ruddlesden-Popper Perovskite Nanowire Laser Array based on Ultrafast Light-Harvesting Quantum Wells
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    Two‐Dimensional Halide Perovskites in Solar Cells: 2D or not 2D?
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    General Nondestructive Passivation by 4‐Fluoroaniline for Perovskite Solar Cells with Improved Performance and Stability
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    Synergy of ammonium chloride and moisture on perovskite crystallization for efficient printable mesoscopic solar cells
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    Selective enhancement of optical nonlinearity in two-dimensional organic-inorganic lead iodide perovskites
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    Solution-processed perovskite light emitting diodes with efficiency exceeding 15% through additive-controlled nanostructure tailoring
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    Edge stabilization in reduced-dimensional perovskites
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    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
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    All-polymer methylammonium lead iodide perovskite microcavities
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    Trap states in multication mesoscopic perovskite solar cells: A deep levels transient spectroscopy investigation
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    Coherent Spin and Quasiparticle Dynamics in Solution-Processed Layered 2D Lead Halide Perovskites.
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    2D Ruddlesden–Popper Perovskite Nanoplate Based Deep‐Blue Light‐Emitting Diodes for Light Communication
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    From Lead Halide Perovskites to Lead‐Free Metal Halide Perovskites and Perovskite Derivatives
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    Surface‐Plasmon‐Assisted Metal Halide Perovskite Small Lasers
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    Fiber-Type Solar Cells, Nanogenerators, Batteries, and Supercapacitors for Wearable Applications
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    Alternative Perovskites for Photovoltaics
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    Self-Assembled 2D Perovskite Layers for Efficient Printable Solar Cells
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    Processing‐Performance Evolution of Perovskite Solar Cells: From Large Grain Polycrystalline Films to Single Crystals
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    A Lead Iodide Perovskite Based on a Large Organic Cation for Solar Cell Applications
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    Aromatic Alkylammonium Spacer Cations for Efficient Two-Dimensional Perovskite Solar Cells with Enhanced Moisture and Thermal Stability
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    Excellent Stability of Perovskite Solar Cells by Passivation Engineering
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    Metal halide perovskite nanostructures for optoelectronic applications and the study of physical properties
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    Liquid-phase growth and optoelectronic properties of two-dimensional hybrid perovskites CH 3 NH 3 PbX 3 (X = Cl, Br, I)
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    A two-dimensional bilayered Dion–Jacobson-type perovskite hybrid with a narrow bandgap for broadband photodetection
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    Isothermal pressure-derived metastable states in 2D hybrid perovskites showing enduring bandgap narrowing
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    Random lasing in uniform perovskite thin films
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    Controlling the Growth Kinetics and Optoelectronic Properties of 2D/3D Lead–Tin Perovskite Heterojunctions
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    In Situ Growth of 2D Perovskite Capping Layer for Stable and Efficient Perovskite Solar Cells
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    Tailoring the Functionality of Organic Spacer Cations for Efficient and Stable Quasi‐2D Perovskite Solar Cells
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    Charge‐Carrier Dynamics, Mobilities, and Diffusion Lengths of 2D–3D Hybrid Butylammonium–Cesium–Formamidinium Lead Halide Perovskites
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    Improved Performance of Printable Perovskite Solar Cells with Bifunctional Conjugated Organic Molecule
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    Surface Effect on 2D Hybrid Perovskite Crystals: Perovskites Using an Ethanolamine Organic Layer as an Example
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    Fine Multi‐Phase Alignments in 2D Perovskite Solar Cells with Efficiency over 17% via Slow Post‐Annealing
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    Optimization of Low‐Dimensional Components of Quasi‐2D Perovskite Films for Deep‐Blue Light‐Emitting Diodes
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    Lead-Free Hybrid Perovskite Absorbers for Viable Application: Can We Eat the Cake and Have It too?
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    Highly Efficient and Stable Solar Cells with 2D MA 3 Bi 2 I 9 /3D MAPbI 3 Heterostructured Perovskites
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    Supramolecular Engineering for Formamidinium‐Based Layered 2D Perovskite Solar Cells: Structural Complexity and Dynamics Revealed by Solid‐State NMR Spectroscopy
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    New Strategies for Defect Passivation in High‐Efficiency Perovskite Solar Cells
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    A Two-Dimensional Ruddlesden-Popper Perovskite Nanowire Laser Array based on Ultrafast Light-Harvesting Quantum Wells
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    Reversible Thermochromism and Strong Ferromagnetism in Two‐Dimensional Hybrid Perovskites
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    Lead- and Iodide-Deficient (CH 3 NH 3 )PbI 3 ( d -MAPI): The Bridge between 2D and 3D Hybrid Perovskites
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    (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
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    Vapor phase fabrication of three‐dimensional arrayed BiI 3 nanosheets for cost‐effective solar cells
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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
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    Pseudohalide-Induced 2D (CH 3 NH 3 ) 2 PbI 2 (SCN) 2 Perovskite for Ternary Resistive Memory with High Performance
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    Perovskite Nanoparticles: Synthesis, Properties, and Novel Applications in Photovoltaics and LEDs
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    Planar perovskite solar cells with long-term stability using ionic liquid additives
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    Role of alkyl chain length in diaminoalkane linked 2D Ruddlesden–Popper halide perovskites
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    A facile synthesis of two new IR optical perovskites based on 1,4-diazabicyclo[2,2,2]octane with a high laser damage threshold
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    Efficient solar cells with enhanced humidity and heat stability based on benzylammonium–caesium–formamidinium mixed-dimensional perovskites
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    Efficient ambient-air-stable HTM-free carbon-based perovskite solar cells with hybrid 2D–3D lead halide photoabsorbers
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    Understanding the mechanism of metal-induced degradation in perovskite nanocrystals
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    (C 6 H 5 NH 3 )BiI 4 : a lead-free perovskite with >330 days humidity stability for optoelectronic applications
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    Strong thickness-dependent quantum confinement in all-inorganic perovskite Cs 2 PbI 4 with a Ruddlesden–Popper structure
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    Cystamine-configured lead halide based 2D hybrid molecular crystals: Synthesis and photoluminescence systematics
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    Hybrid Perovskites: Prospects for Concentrator Solar Cells
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    Coherent Spin and Quasiparticle Dynamics in Solution-Processed Layered 2D Lead Halide Perovskites
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    Management of Crystallization Kinetics for Efficient and Stable Low-Dimensional Ruddlesden-Popper (LDRP) Lead-Free Perovskite Solar Cells
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    Ruddlesden–Popper Perovskites: Synthesis and Optical Properties for Optoelectronic Applications
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    Multilayered PdSe 2 /Perovskite Schottky Junction for Fast, Self‐Powered, Polarization‐Sensitive, Broadband Photodetectors, and Image Sensor Application
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    Highly Emissive Self-Trapped Excitons in Fully Inorganic Zero-Dimensional Tin Halides
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    Role of Nonradiative Defects and Environmental Oxygen on Exciton Recombination Processes in CsPbBr 3 Perovskite Nanocrystals
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    Heterogeneous Photon Recycling and Charge Diffusion Enhance Charge Transport in Quasi-2D Lead-Halide Perovskite Films
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    Orientation Control of Two-Dimensional Perovskites by Incorporating Carboxylic Acid Moieties
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    NiO x Hole Transport Layer for Perovskite Solar Cells with Improved Stability and Reproducibility
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    Synergy of ammonium chloride and moisture on perovskite crystallization for efficient printable mesoscopic solar cells
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    Publisher Correction: Selective enhancement of optical nonlinearity in two-dimensional organic-inorganic lead iodide perovskites
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    Scaling law for excitons in 2D perovskite quantum wells
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    Excited-state vibrational dynamics toward the polaron in methylammonium lead iodide perovskite
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    Addressing the stability issue of perovskite solar cells for commercial applications
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    Unveiling the operation mechanism of layered perovskite solar cells
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    Synthetic control over orientational degeneracy of spacer cations enhances solar cell efficiency in two-dimensional perovskites
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    Graphite-protected CsPbBr3 perovskite photoanodes functionalised with water oxidation catalyst for oxygen evolution in water
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    Atomic-level passivation mechanism of ammonium salts enabling highly efficient perovskite solar cells
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    Templated growth of oriented layered hybrid perovskites on 3D-like perovskites
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    Edge stabilization in reduced-dimensional perovskites
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    Long-range exciton transport and slow annihilation in two-dimensional hybrid perovskites
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    Structural and Morphological Evolution for Water-resistant Organic Thermoelectrics
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    Optical determination of Shockley-Read-Hall and interface recombination currents in hybrid perovskites
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    Material challenges for solar cells in the twenty-first century: directions in emerging technologies
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    Giant Rashba splitting in 2D organic-inorganic halide perovskites measured by transient spectroscopies
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    Manipulating efficient light emission in two-dimensional perovskite crystals by pressure-induced anisotropic deformation
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    Microstructural Study of Two-Dimensional Organic-Inorganic Hybrid Perovskite Nanosheet Degradation under Illumination
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    • Nie, Lingfang; Ke, Xiaoxing; Sui, Manling
    • Nanomaterials, Vol. 9, Issue 5
    • DOI: 10.3390/nano9050722

    Visualizing buried local carrier diffusion in halide perovskite crystals via two-photon microscopy
    preprint, January 2019

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