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Title: New Type of 2D Perovskites with Alternating Cations in the Interlayer Space, (C(NH2)3)(CH3NH3)nPbnI3n+1: Structure, Properties, and Photovoltaic Performance

Abstract

In this study, we present the new homologous series (C(NH2)3)(CH3NH3)nPbnI3n+1 (n = 1, 2, 3) of layered 2D perovskites. Structural characterization by single-crystal X-ray diffraction reveals that these compounds adopt an unprecedented structure type, which is stabilized by the alternating ordering of the guanidinium and methylammonium cations in the interlayer space (ACI). Compared to the more common Ruddlesden–Popper (RP) 2D perovskites, the ACI perovskites have a different stacking motif and adopt a higher crystal symmetry. The higher symmetry of the ACI perovskites is expressed in their physical properties, which show a characteristic decrease of the bandgap with respect to their RP perovskite counterparts with the same perovskite layer thickness (n). The compounds show a monotonic decrease in the optical gap as n increases: Eg = 2.27 eV for n = 1 to Eg = 1.99 eV for n = 2 and Eg = 1.73 eV for n = 3, which show slightly narrower gaps compared to the corresponding RP perovskites. First-principles theoretical electronic structure calculations confirm the experimental optical gap trends suggesting that the ACI perovskites are direct bandgap semiconductors with wide valence and conduction bandwidths. To assess the potential of the ACI perovskites toward solar cell applications, we studiedmore » the (C(NH2)3)(CH3NH3)3Pb3I10 (n = 3) compound. Compact thin films from the (C(NH2)3)(CH3NH3)3Pb3I10 compound with excellent surface coverage can be obtained from the antisolvent dripping method. Planar photovoltaic devices from optimized ACI perovskite films yield a power-conversion-efficiency of 7.26% with a high open-circuit voltage of ~1 V and a striking fill factor of ~80%.« less

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2];  [3];  [3];  [1]; ORCiD logo [2]; ORCiD logo [4]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1]
  1. Northwestern Univ., Evanston, IL (United States)
  2. Université de Rennes (France)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Univ. of California, Santa Barbara, CA (United States)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Light Energy Activated Redox Processes (LEAP); Univ. of California, Santa Barbara, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Science Foundation (NSF)
OSTI Identifier:
1599738
Grant/Contract Number:  
SC0012541; SC0001059; AC52-06NA25396; AC02-06CH11357; ECCS-1542205; DMR-1121262
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the American Chemical Society
Additional Journal Information:
Journal Volume: 139; Journal Issue: 45; Journal ID: ISSN 0002-7863
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Soe, Chan Myae Myae, Stoumpos, Constantinos C., Kepenekian, Mikaël, Traoré, Boubacar, Tsai, Hsinhan, Nie, Wanyi, Wang, Binghao, Katan, Claudine, Seshadri, Ram, Mohite, Aditya D., Even, Jacky, Marks, Tobin J., and Kanatzidis, Mercouri G. New Type of 2D Perovskites with Alternating Cations in the Interlayer Space, (C(NH2)3)(CH3NH3)nPbnI3n+1: Structure, Properties, and Photovoltaic Performance. United States: N. p., 2017. Web. doi:10.1021/jacs.7b09096.
Soe, Chan Myae Myae, Stoumpos, Constantinos C., Kepenekian, Mikaël, Traoré, Boubacar, Tsai, Hsinhan, Nie, Wanyi, Wang, Binghao, Katan, Claudine, Seshadri, Ram, Mohite, Aditya D., Even, Jacky, Marks, Tobin J., & Kanatzidis, Mercouri G. New Type of 2D Perovskites with Alternating Cations in the Interlayer Space, (C(NH2)3)(CH3NH3)nPbnI3n+1: Structure, Properties, and Photovoltaic Performance. United States. https://doi.org/10.1021/jacs.7b09096
Soe, Chan Myae Myae, Stoumpos, Constantinos C., Kepenekian, Mikaël, Traoré, Boubacar, Tsai, Hsinhan, Nie, Wanyi, Wang, Binghao, Katan, Claudine, Seshadri, Ram, Mohite, Aditya D., Even, Jacky, Marks, Tobin J., and Kanatzidis, Mercouri G. Thu . "New Type of 2D Perovskites with Alternating Cations in the Interlayer Space, (C(NH2)3)(CH3NH3)nPbnI3n+1: Structure, Properties, and Photovoltaic Performance". United States. https://doi.org/10.1021/jacs.7b09096. https://www.osti.gov/servlets/purl/1599738.
@article{osti_1599738,
title = {New Type of 2D Perovskites with Alternating Cations in the Interlayer Space, (C(NH2)3)(CH3NH3)nPbnI3n+1: Structure, Properties, and Photovoltaic Performance},
author = {Soe, Chan Myae Myae and Stoumpos, Constantinos C. and Kepenekian, Mikaël and Traoré, Boubacar and Tsai, Hsinhan and Nie, Wanyi and Wang, Binghao and Katan, Claudine and Seshadri, Ram and Mohite, Aditya D. and Even, Jacky and Marks, Tobin J. and Kanatzidis, Mercouri G.},
abstractNote = {In this study, we present the new homologous series (C(NH2)3)(CH3NH3)nPbnI3n+1 (n = 1, 2, 3) of layered 2D perovskites. Structural characterization by single-crystal X-ray diffraction reveals that these compounds adopt an unprecedented structure type, which is stabilized by the alternating ordering of the guanidinium and methylammonium cations in the interlayer space (ACI). Compared to the more common Ruddlesden–Popper (RP) 2D perovskites, the ACI perovskites have a different stacking motif and adopt a higher crystal symmetry. The higher symmetry of the ACI perovskites is expressed in their physical properties, which show a characteristic decrease of the bandgap with respect to their RP perovskite counterparts with the same perovskite layer thickness (n). The compounds show a monotonic decrease in the optical gap as n increases: Eg = 2.27 eV for n = 1 to Eg = 1.99 eV for n = 2 and Eg = 1.73 eV for n = 3, which show slightly narrower gaps compared to the corresponding RP perovskites. First-principles theoretical electronic structure calculations confirm the experimental optical gap trends suggesting that the ACI perovskites are direct bandgap semiconductors with wide valence and conduction bandwidths. To assess the potential of the ACI perovskites toward solar cell applications, we studied the (C(NH2)3)(CH3NH3)3Pb3I10 (n = 3) compound. Compact thin films from the (C(NH2)3)(CH3NH3)3Pb3I10 compound with excellent surface coverage can be obtained from the antisolvent dripping method. Planar photovoltaic devices from optimized ACI perovskite films yield a power-conversion-efficiency of 7.26% with a high open-circuit voltage of ~1 V and a striking fill factor of ~80%.},
doi = {10.1021/jacs.7b09096},
journal = {Journal of the American Chemical Society},
number = 45,
volume = 139,
place = {United States},
year = {Thu Nov 02 00:00:00 EDT 2017},
month = {Thu Nov 02 00:00:00 EDT 2017}
}

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Works referenced in this record:

High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells
journal, July 2016

  • Tsai, Hsinhan; Nie, Wanyi; Blancon, Jean-Christophe
  • Nature, Vol. 536, Issue 7616
  • DOI: 10.1038/nature18306

Extremely efficient internal exciton dissociation through edge states in layered 2D perovskites
journal, March 2017


2D Homologous Perovskites as Light-Absorbing Materials for Solar Cell Applications
journal, June 2015

  • Cao, Duyen H.; Stoumpos, Constantinos C.; Farha, Omar K.
  • Journal of the American Chemical Society, Vol. 137, Issue 24
  • DOI: 10.1021/jacs.5b03796

Role of Organic Counterion in Lead- and Tin-Based Two-Dimensional Semiconducting Iodide Perovskites and Application in Planar Solar Cells
journal, October 2016


Ruddlesden–Popper Hybrid Lead Iodide Perovskite 2D Homologous Semiconductors
journal, April 2016

  • Stoumpos, Constantinos C.; Cao, Duyen H.; Clark, Daniel J.
  • Chemistry of Materials, Vol. 28, Issue 8, p. 2852-2867
  • DOI: 10.1021/acs.chemmater.6b00847

White-Light Emission and Structural Distortion in New Corrugated Two-Dimensional Lead Bromide Perovskites
journal, March 2017

  • Mao, Lingling; Wu, Yilei; Stoumpos, Constantinos C.
  • Journal of the American Chemical Society, Vol. 139, Issue 14
  • DOI: 10.1021/jacs.7b01312

A Layered Hybrid Perovskite Solar-Cell Absorber with Enhanced Moisture Stability
journal, September 2014

  • Smith, Ian C.; Hoke, Eric T.; Solis-Ibarra, Diego
  • Angewandte Chemie International Edition, Vol. 53, Issue 42
  • DOI: 10.1002/anie.201406466

Solid-state principles applied to organic–inorganic perovskites: new tricks for an old dog
journal, January 2014

  • Kieslich, Gregor; Sun, Shijing; Cheetham, Anthony K.
  • Chem. Sci., Vol. 5, Issue 12
  • DOI: 10.1039/C4SC02211D

The Renaissance of Halide Perovskites and Their Evolution as Emerging Semiconductors
journal, September 2015


Structure–Band Gap Relationships in Hexagonal Polytypes and Low-Dimensional Structures of Hybrid Tin Iodide Perovskites
journal, December 2016


Structural, optical and related properties of some natural three- and lower-dimensional semiconductor systems
journal, April 1995


Reduced Band Gap Hybrid Perovskites Resulting from Combined Hydrogen and Halogen Bonding at the Organic−Inorganic Interface
journal, February 2007

  • Sourisseau, Sebastien; Louvain, Nicolas; Bi, Wenhua
  • Chemistry of Materials, Vol. 19, Issue 3
  • DOI: 10.1021/cm062380e

Inorganic–organic hybrid materials incorporating primary cyclic ammonium cations: The lead iodide series
journal, January 2007

  • Billing, David G.; Lemmerer, Andreas
  • CrystEngComm, Vol. 9, Issue 3
  • DOI: 10.1039/B618196A

Synthesis and Characterization of [NH2C(I):NH2]3MI5 (M = Sn, Pb): Stereochemical Activity in Divalent Tin and Lead Halides Containing Single .ltbbrac.110.rtbbrac. Perovskite Sheets
journal, May 1995

  • Wang, Shumin; Mitzi, David B.; Feild, Chris A.
  • Journal of the American Chemical Society, Vol. 117, Issue 19
  • DOI: 10.1021/ja00124a012

Preparation, structure and optical properties of [CH3SC(NH2)NH2]3PbI5, [CH3SC(NH2)NH2]4Pb2Br8and [CH3SC(NH2)NH2]3PbCl5·CH3SC(NH2)NH2Cl
journal, January 1998

  • Mousdis, G. A.; Gionis, V.; Papavassiliou, G. C.
  • Journal of Materials Chemistry, Vol. 8, Issue 10
  • DOI: 10.1039/a802926a

Crystal structures of isotypic poly[bis(benzimidazolium) [tetra-μ-iodido-stannate(II)]] and poly[bis(5,6-difluorobenzimidazolium) [tetra-μ-iodido-stannate(II)]]
journal, September 2014

  • Zimmermann, Iwan; Keene, Tony D.; Hauser, Jürg
  • Acta Crystallographica Section E Structure Reports Online, Vol. 70, Issue 10
  • DOI: 10.1107/S1600536814019151

The reaction of tin(iv) iodide with phosphines: formation of new halotin anions
journal, January 2009

  • Apostolico, Leonardo; Kociok-Köhn, Gabriele; Molloy, Kieran C.
  • Dalton Transactions, Issue 47
  • DOI: 10.1039/b917722a

New compounds of the K 2 NIF 4 type
journal, August 1957


Nouvelles familles de phases MIMII2Nb3O10 a feuillets “perovskites”
journal, November 1981


Interlayer chemistry between thick transition-metal oxide layers: synthesis and intercalation reactions of K[Ca2Nan-3NbnO3n+1] (3 .ltoreq. n .ltoreq. 7)
journal, November 1985

  • Jacobson, A. J.; Johnson, Jack W.; Lewandowski, J. T.
  • Inorganic Chemistry, Vol. 24, Issue 23
  • DOI: 10.1021/ic00217a006

A Variable-Temperature Powder Neutron Diffraction Study of Ferroelectric Bi 4 Ti 3 O 12
journal, November 1999

  • Hervoches, Charles H.; Lightfoot, Philip
  • Chemistry of Materials, Vol. 11, Issue 11
  • DOI: 10.1021/cm991090d

Recent Developments in Oxide Ion Conductors: Aurivillius Phases
journal, January 1996

  • Kendall, Kurt R.; Navas, Carlos; Thomas, Julie K.
  • Chemistry of Materials, Vol. 8, Issue 3
  • DOI: 10.1021/cm9503083

Structure determination of KLaNb2O7 exhibiting ion exchange ability by X-ray powder diffraction
journal, March 1992


CsLaNb2O7
journal, May 1996

  • Kumada, N.; Kinomura, N.; Sleight, A. W.
  • Acta Crystallographica Section C Crystal Structure Communications, Vol. 52, Issue 5
  • DOI: 10.1107/S0108270195015848

Emergent Noncentrosymmetry and Piezoelectricity Driven by Oxygen Octahedral Rotations in n = 2 Dion-Jacobson Phase Layer Perovskites
journal, February 2016

  • Strayer, Megan E.; Gupta, Arnab Sen; Akamatsu, Hirofumi
  • Advanced Functional Materials, Vol. 26, Issue 12
  • DOI: 10.1002/adfm.201504046

Understanding ferroelectricity in layered perovskites: new ideas and insights from theory and experiments
journal, January 2015

  • Benedek, Nicole A.; Rondinelli, James M.; Djani, Hania
  • Dalton Transactions, Vol. 44, Issue 23
  • DOI: 10.1039/C5DT00010F

Origin of Ferroelectricity in a Family of Polar Oxides: The Dion—Jacobson Phases
journal, March 2014


Perovskites by Design:  A Toolbox of Solid-State Reactions
journal, April 2002

  • Schaak, Raymond E.; Mallouk, Thomas E.
  • Chemistry of Materials, Vol. 14, Issue 4, p. 1455-1471
  • DOI: 10.1021/cm010689m

Semiconducting Tin and Lead Iodide Perovskites with Organic Cations: Phase Transitions, High Mobilities, and Near-Infrared Photoluminescent Properties
journal, July 2013

  • Stoumpos, Constantinos C.; Malliakas, Christos D.; Kanatzidis, Mercouri G.
  • Inorganic Chemistry, Vol. 52, Issue 15, p. 9019-9038
  • DOI: 10.1021/ic401215x

Conducting Layered Organic-inorganic Halides Containing <110>-Oriented Perovskite Sheets
journal, March 1995


NMR Study of Cation Motion in Guanidinium Iodoplumbates
journal, November 1997

  • Grottel, M.; Szafrański, M.; Pająk, Z.
  • Zeitschrift für Naturforschung A, Vol. 52, Issue 11
  • DOI: 10.1515/zna-1997-1105

Phase transitions in the layered structure of diguanidinium tetraiodoplumbate
journal, January 2000


Luminescent and Photoconductive Layered Lead Halide Perovskite Compounds Comprising Mixtures of Cesium and Guanidinium Cations
journal, September 2017


Chemistry in Molten Alkali Metal Polyselenophosphate Fluxes. Influence of Flux Composition on Dimensionality. Layers and Chains in APbPSe4, A4Pb(PSe4)2 (A = Rb, Cs), and K4Eu(PSe4)2
journal, January 1996

  • Chondroudis, Konstantinos; McCarthy, Timothy J.; Kanatzidis, Mercouri G.
  • Inorganic Chemistry, Vol. 35, Issue 4
  • DOI: 10.1021/ic950479+

Crystallographic Computing System JANA2006: General features
journal, January 2014

  • Petříček, Václav; Dušek, Michal; Palatinus, Lukáš
  • Zeitschrift für Kristallographie - Crystalline Materials, Vol. 229, Issue 5
  • DOI: 10.1515/zkri-2014-1737

Structure validation in chemical crystallography
journal, January 2009

  • Spek, Anthony L.
  • Acta Crystallographica Section D Biological Crystallography, Vol. 65, Issue 2, p. 148-155
  • DOI: 10.1107/S090744490804362X

The SIESTA method for ab initio order- N materials simulation
journal, March 2002

  • Soler, José M.; Artacho, Emilio; Gale, Julian D.
  • Journal of Physics: Condensed Matter, Vol. 14, Issue 11
  • DOI: 10.1088/0953-8984/14/11/302

Generalized Gradient Approximation Made Simple
journal, October 1996

  • Perdew, John P.; Burke, Kieron; Ernzerhof, Matthias
  • Physical Review Letters, Vol. 77, Issue 18, p. 3865-3868
  • DOI: 10.1103/PhysRevLett.77.3865

On-site approximation for spin–orbit coupling in linear combination of atomic orbitals density functional methods
journal, August 2006

  • Fernández-Seivane, L.; Oliveira, M. A.; Sanvito, S.
  • Journal of Physics: Condensed Matter, Vol. 18, Issue 34
  • DOI: 10.1088/0953-8984/18/34/012

Efficient pseudopotentials for plane-wave calculations
journal, January 1991


Linear-Scaling ab-initio Calculations for Large and Complex Systems
journal, September 1999


Mechanism of Pressure-Induced Phase Transitions, Amorphization, and Absorption-Edge Shift in Photovoltaic Methylammonium Lead Iodide
journal, August 2016


Significance tests on the crystallographic R factor
journal, May 1965


On the application of Hamilton's ratio test to the assignment of absolute configuration and an alternative test
journal, September 1981


Crystal Structure of a Layered Perovskite Niobate KCa2Nb3O10
journal, April 2000

  • Fukuoka, Hiroshi; Isami, Toshiyuki; Yamanaka, Shoji
  • Journal of Solid State Chemistry, Vol. 151, Issue 1
  • DOI: 10.1006/jssc.2000.8619

The Hydrogen Bond in the Solid State
journal, January 2002


The classification of tilted octahedra in perovskites
journal, November 1972

  • Glazer, A. M.
  • Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, Vol. 28, Issue 11
  • DOI: 10.1107/S0567740872007976

Preparation and characterization of layered lead halide compounds
journal, March 1991

  • Calabrese, J.; Jones, N. L.; Harlow, R. L.
  • Journal of the American Chemical Society, Vol. 113, Issue 6, p. 2328-2330
  • DOI: 10.1021/ja00006a076

Advances and Promises of Layered Halide Hybrid Perovskite Semiconductors
journal, October 2016


Dielectric confinement effect on excitons in PbI 4 -based layered semiconductors
journal, March 1992


Optical properties due to electronic transitions in two-dimensional semiconductors ( C n H 2 n + 1 NH 3 ) 2 PbI 4
journal, December 1990


Excitons in ultrathin organic-inorganic perovskite crystals
journal, July 2015


Quantum confinement and dielectric profiles of colloidal nanoplatelets of halide inorganic and hybrid organic–inorganic perovskites
journal, January 2016

  • Sapori, Daniel; Kepenekian, Mikaël; Pedesseau, Laurent
  • Nanoscale, Vol. 8, Issue 12
  • DOI: 10.1039/C5NR07175E

Understanding Quantum Confinement of Charge Carriers in Layered 2D Hybrid Perovskites
journal, September 2014

  • Even, Jacky; Pedesseau, Laurent; Katan, Claudine
  • ChemPhysChem, Vol. 15, Issue 17
  • DOI: 10.1002/cphc.201402428

Room Temperature Phase Transition in Methylammonium Lead Iodide Perovskite Thin Films Induced by Hydrohalic Acid Additives
journal, September 2016

  • Soe, Chan Myae Myae; Stoumpos, Constantinos C.; Harutyunyan, Boris
  • ChemSusChem, Vol. 9, Issue 18, p. 2656-2665
  • DOI: 10.1002/cssc.201600879

Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
journal, July 2014

  • Jeon, Nam Joong; Noh, Jun Hong; Kim, Young Chan
  • Nature Materials, Vol. 13, Issue 9, p. 897-903
  • DOI: 10.1038/nmat4014

A Fast Deposition-Crystallization Procedure for Highly Efficient Lead Iodide Perovskite Thin-Film Solar Cells
journal, July 2014

  • Xiao, Manda; Huang, Fuzhi; Huang, Wenchao
  • Angewandte Chemie International Edition, Vol. 53, Issue 37
  • DOI: 10.1002/anie.201405334

Guanidinium: A Route to Enhanced Carrier Lifetime and Open-Circuit Voltage in Hybrid Perovskite Solar Cells
journal, January 2016


Crystal structure and ferroelectric properties of A Bi 2 Ta 2 O 9 ( A = Ca , Sr, and Ba)
journal, March 2000


Works referencing / citing this record:

Unravelling Light-Induced Degradation of Layered Perovskite Crystals and Design of Efficient Encapsulation for Improved Photostability
journal, April 2018

  • Fang, Hong-Hua; Yang, Jie; Tao, Shuxia
  • Advanced Functional Materials, Vol. 28, Issue 21
  • DOI: 10.1002/adfm.201800305

Prediction of Novel p -Type Transparent Conductors in Layered Double Perovskites: A First-Principles Study
journal, April 2018

  • Xu, Jian; Liu, Jian-Bo; Wang, Jianfeng
  • Advanced Functional Materials, Vol. 28, Issue 26
  • DOI: 10.1002/adfm.201800332

Mixed Dimensional 2D/3D Hybrid Perovskite Absorbers: The Future of Perovskite Solar Cells?
journal, December 2018

  • Krishna, Anurag; Gottis, Sébastien; Nazeeruddin, Mohammad Khaja
  • Advanced Functional Materials, Vol. 29, Issue 8
  • DOI: 10.1002/adfm.201806482

Introduction of Hydrophobic Ammonium Salts with Halogen Functional Groups for High‐Efficiency and Stable 2D/3D Perovskite Solar Cells
journal, January 2019

  • Liu, Guozhen; Zheng, Haiying; Xu, Xiaoxiao
  • Advanced Functional Materials, Vol. 29, Issue 47
  • DOI: 10.1002/adfm.201807565

Band‐Edge Exciton Fine Structure and Exciton Recombination Dynamics in Single Crystals of Layered Hybrid Perovskites
journal, December 2019

  • Fang, Hong‐Hua; Yang, Jie; Adjokatse, Sampson
  • Advanced Functional Materials, Vol. 30, Issue 6
  • DOI: 10.1002/adfm.201907979

Merits and Challenges of Ruddlesden-Popper Soft Halide Perovskites in Electro-Optics and Optoelectronics
journal, October 2018


Low‐Dimensional Perovskites with Diammonium and Monoammonium Alternant Cations for High‐Performance Photovoltaics
journal, July 2019

  • Li, Pengwei; Liang, Chao; Liu, Xiao‐Long
  • Advanced Materials, Vol. 31, Issue 35
  • DOI: 10.1002/adma.201901966

Compositional Control in 2D Perovskites with Alternating Cations in the Interlayer Space for Photovoltaics with Efficiency over 18%
journal, September 2019


Highly Sensitive and Ultrafast Responding Array Photodetector Based on a Newly Tailored 2D Lead Iodide Perovskite Crystal
journal, March 2019


Highly Emissive Self-Trapped Excitons in Fully Inorganic Zero-Dimensional Tin Halides
journal, July 2018

  • Benin, Bogdan M.; Dirin, Dmitry N.; Morad, Viktoriia
  • Angewandte Chemie, Vol. 130, Issue 35
  • DOI: 10.1002/ange.201806452

Hybrid Halide Perovskites: Discussions on Terminology and Materials
journal, October 2019


Low‐Dimensional Dion–Jacobson‐Phase Lead‐Free Perovskites for High‐Performance Photovoltaics with Improved Stability
journal, March 2020

  • Li, Pengwei; Liu, Xiaolong; Zhang, Yiqiang
  • Angewandte Chemie International Edition, Vol. 59, Issue 17
  • DOI: 10.1002/anie.202000460

Insight into the Mechanochemical Synthesis and Structural Evolution of Hybrid Organic-Inorganic Guanidinium Lead(II) Iodides
journal, November 2018


Two‐Dimensional Halide Perovskites in Solar Cells: 2D or not 2D?
journal, March 2019

  • Ortiz‐Cervantes, Carmen; Carmona‐Monroy, Paulina; Solis‐Ibarra, Diego
  • ChemSusChem, Vol. 12, Issue 8
  • DOI: 10.1002/cssc.201802992

Stability Issue of Perovskite Solar Cells under Real‐World Operating Conditions
journal, April 2020


An Effective Strategy for Photoelectric Performance Enhancement of 2D Perovskite via Halogenating Organic Cation: A Theoretical Prediction
journal, January 2020

  • Tang, Yong; Zhou, Yingtang; Zhong, Xiangli
  • physica status solidi (b), Vol. 257, Issue 5
  • DOI: 10.1002/pssb.201900599

Highly Efficient Guanidinium‐Based Quasi 2D Perovskite Solar Cells via a Two‐Step Post‐Treatment Process
journal, May 2019


Aromatic Alkylammonium Spacer Cations for Efficient Two-Dimensional Perovskite Solar Cells with Enhanced Moisture and Thermal Stability
journal, February 2018

  • Thrithamarassery Gangadharan, Deepak; Han, Yujie; Dubey, Ashish
  • Solar RRL, Vol. 2, Issue 4
  • DOI: 10.1002/solr.201700215

Present Status and Research Prospects of Tin‐based Perovskite Solar Cells
journal, August 2019


Impact of Temperature‐Dependent Hydration Water on Perovskite Solar Cells
journal, October 2019


Design principles for electronic charge transport in solution-processed vertically stacked 2D perovskite quantum wells
journal, May 2018


Dimensional tailoring of hybrid perovskites for photovoltaics
journal, November 2018


A simple method for phase control in two-dimensional perovskite solar cells
journal, January 2018

  • Ma, Chunqing; Lo, Ming-Fai; Lee, Chun-Sing
  • Journal of Materials Chemistry A, Vol. 6, Issue 39
  • DOI: 10.1039/c8ta06976j

Emission enhancement and bandgap retention of a two-dimensional mixed cation lead halide perovskite under high pressure
journal, January 2019

  • Chen, Yaping; Fu, Ruijing; Wang, Lingrui
  • Journal of Materials Chemistry A, Vol. 7, Issue 11
  • DOI: 10.1039/c8ta11992a

Low-dimensional emissive states in non-stoichiometric methylammonium lead halide perovskites
journal, January 2019

  • Freestone, Benjamin G.; Smith, Joel A.; Piana, Giacomo
  • Journal of Materials Chemistry A, Vol. 7, Issue 18
  • DOI: 10.1039/c8ta12184b

Factors determining the vertical orientation of two-dimensional perovskites
journal, January 2019

  • Arai, R.; Yoshizawa-Fujita, M.; Takeoka, Y.
  • CrystEngComm, Vol. 21, Issue 31
  • DOI: 10.1039/c9ce00631a

Guanidinium induced phase separated perovskite layer for efficient and highly stable solar cells
journal, January 2019

  • Zhang, Weihai; Xiong, Juan; Li, Jinhua
  • Journal of Materials Chemistry A, Vol. 7, Issue 16
  • DOI: 10.1039/c9ta01893j

Structural and thermodynamic limits of layer thickness in 2D halide perovskites
journal, December 2018

  • Soe, Chan Myae Myae; Nagabhushana, G. P.; Shivaramaiah, Radha
  • Proceedings of the National Academy of Sciences, Vol. 116, Issue 1
  • DOI: 10.1073/pnas.1811006115

DFT study of electronic structure and optical properties of layered two-dimensional CH 3 NH 3 PbX 3 (X=Cl, Br, I)
journal, January 2019

  • Faghihnasiri, Mahdi; Izadifard, Morteza; Ghazi, Mohammad Ebrahim
  • Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, Vol. 41, Issue 22
  • DOI: 10.1080/15567036.2019.1568645

Efficient and accurate calculation of band gaps of halide perovskites with the Tran-Blaha modified Becke-Johnson potential
journal, January 2019

  • Traoré, Boubacar; Bouder, Gaëlle; Lafargue-Dit-Hauret, William
  • Physical Review B, Vol. 99, Issue 3
  • DOI: 10.1103/physrevb.99.035139

First representatives of (210)-oriented perovskite variants−Synthesis, crystal structures and properties of the new 2D hybrid perovskites A[HC(NH2)2]PbI4; A=[C(NH2)3], [HSC(NH2)2]
journal, July 2018

  • Daub, Michael; Hillebrecht, Harald
  • Zeitschrift für Kristallographie - Crystalline Materials, Vol. 233, Issue 8
  • DOI: 10.1515/zkri-2018-2055

Low‐Dimensional Dion–Jacobson‐Phase Lead‐Free Perovskites for High‐Performance Photovoltaics with Improved Stability
journal, April 2020

  • Li, Pengwei; Liu, Xiaolong; Zhang, Yiqiang
  • Angewandte Chemie, Vol. 132, Issue 17
  • DOI: 10.1002/ange.202000460

Hybrid Halide Perovskites: Discussions on Terminology and Materials
journal, October 2019


Highly Emissive Self-Trapped Excitons in Fully Inorganic Zero-Dimensional Tin Halides
journal, July 2018

  • Benin, Bogdan M.; Dirin, Dmitry N.; Morad, Viktoriia
  • Angewandte Chemie International Edition, Vol. 57, Issue 35
  • DOI: 10.1002/anie.201806452

Highly Emissive Self-Trapped Excitons in Fully Inorganic Zero-Dimensional Tin Halides
journal, July 2018

  • Benin, Bogdan M.; Dirin, Dmitry N.; Morad, Viktoriia
  • Angewandte Chemie International Edition, Vol. 57, Issue 35
  • DOI: 10.1002/anie.201806452

Guanidinium-Formamidinium Lead Iodide: A Layered Perovskite-Related Compound with Red Luminescence at Room Temperature
journal, February 2018

  • Nazarenko, Olga; Kotyrba, Martin R.; Yakunin, Sergii
  • Journal of the American Chemical Society, Vol. 140, Issue 11
  • DOI: 10.1021/jacs.8b00194

Two-Dimensional Dion–Jacobson Hybrid Lead Iodide Perovskites with Aromatic Diammonium Cations
journal, July 2019

  • Li, Xiaotong; Ke, Weijun; Traoré, Boubacar
  • Journal of the American Chemical Society, Vol. 141, Issue 32
  • DOI: 10.1021/jacs.9b06398

Design principles for electronic charge transport in solution-processed vertically stacked 2D perovskite quantum wells
journal, May 2018


Structural and thermodynamic limits of layer thickness in 2D halide perovskites
journal, December 2018

  • Soe, Chan Myae Myae; Nagabhushana, G. P.; Shivaramaiah, Radha
  • Proceedings of the National Academy of Sciences, Vol. 116, Issue 1
  • DOI: 10.1073/pnas.1811006115

Phase-Transition-Induced Carrier Mass Enhancement in 2D Ruddlesden-Popper Perovskites
text, January 2019

  • Baranowski, M.; Zelewski, Sj; Kepenekian, M.
  • Apollo - University of Cambridge Repository
  • DOI: 10.17863/cam.43863