Single crystal growth and thermal stability of (CH3NH3)1-xCsxPbBr3

Hadar Kaslasi; Yishay Feldman; Yevgeny Rakita; David Cahen; Gary Hodes

doi:https://doi.org/10.1021/acs.cgd.0c00122

Single crystal growth and thermal stability of (CH3NH3)1-xCsxPbBr3

Hadar Kaslasi, Yishay Feldman, Yevgeny Rakita, David Cahen, Gary Hodes

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

Abstract

We describe the growth of single crystals of the halide perovskites APbBr3, with varying ratios of Cs to methylammonium (MA) on the A site, by antisolvent vapor-assisted crystallization (AVC) and characterize the structural and compositional homogeneity of the grown crystals. We find improved thermostability for the Cs-rich mixed crystals and suggest that this is caused by a combination of locking-in of the relatively large MA in the smaller lattice of the Cs-rich material as well as by stronger hydrogen bonding between the nitrogen of MA and Br due to reduced lattice size and/or octahedral tilting with increased Cs. We also show that it is possible to grow either compositionally homogeneous crystals or core-shell, compositionally graded crystals by changing the ratio of antisolvent to solvent in the AVC method.

Original language	English
Pages (from-to)	4366-4374
Number of pages	9
Journal	Crystal Growth & Design
Volume	20
Issue number	7
Early online date	12 May 2020
DOIs	https://doi.org/10.1021/acs.cgd.0c00122
State	Published - 1 Jul 2020

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
General Materials Science

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title = "Single crystal growth and thermal stability of (CH3NH3)1-xCsxPbBr3",

abstract = "We describe the growth of single crystals of the halide perovskites APbBr3, with varying ratios of Cs to methylammonium (MA) on the A site, by antisolvent vapor-assisted crystallization (AVC) and characterize the structural and compositional homogeneity of the grown crystals. We find improved thermostability for the Cs-rich mixed crystals and suggest that this is caused by a combination of locking-in of the relatively large MA in the smaller lattice of the Cs-rich material as well as by stronger hydrogen bonding between the nitrogen of MA and Br due to reduced lattice size and/or octahedral tilting with increased Cs. We also show that it is possible to grow either compositionally homogeneous crystals or core-shell, compositionally graded crystals by changing the ratio of antisolvent to solvent in the AVC method.",

author = "Hadar Kaslasi and Yishay Feldman and Yevgeny Rakita and David Cahen and Gary Hodes",

note = "We acknowledge the Yotam project of the Weizmann Institute{\textquoteright}s Sustainability and Energy Research Initiative, SAERI, for partial support. H.K. thanks Prof. Dan Oron (Physics of Complex Systems, Weizmann Inst.) for his support.",

year = "2020",

month = jul,

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doi = "https://doi.org/10.1021/acs.cgd.0c00122",

language = "الإنجليزيّة",

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TY - JOUR

T1 - Single crystal growth and thermal stability of (CH3NH3)1-xCsxPbBr3

AU - Kaslasi, Hadar

AU - Feldman, Yishay

AU - Rakita, Yevgeny

AU - Cahen, David

AU - Hodes, Gary

N1 - We acknowledge the Yotam project of the Weizmann Institute’s Sustainability and Energy Research Initiative, SAERI, for partial support. H.K. thanks Prof. Dan Oron (Physics of Complex Systems, Weizmann Inst.) for his support.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - We describe the growth of single crystals of the halide perovskites APbBr3, with varying ratios of Cs to methylammonium (MA) on the A site, by antisolvent vapor-assisted crystallization (AVC) and characterize the structural and compositional homogeneity of the grown crystals. We find improved thermostability for the Cs-rich mixed crystals and suggest that this is caused by a combination of locking-in of the relatively large MA in the smaller lattice of the Cs-rich material as well as by stronger hydrogen bonding between the nitrogen of MA and Br due to reduced lattice size and/or octahedral tilting with increased Cs. We also show that it is possible to grow either compositionally homogeneous crystals or core-shell, compositionally graded crystals by changing the ratio of antisolvent to solvent in the AVC method.

AB - We describe the growth of single crystals of the halide perovskites APbBr3, with varying ratios of Cs to methylammonium (MA) on the A site, by antisolvent vapor-assisted crystallization (AVC) and characterize the structural and compositional homogeneity of the grown crystals. We find improved thermostability for the Cs-rich mixed crystals and suggest that this is caused by a combination of locking-in of the relatively large MA in the smaller lattice of the Cs-rich material as well as by stronger hydrogen bonding between the nitrogen of MA and Br due to reduced lattice size and/or octahedral tilting with increased Cs. We also show that it is possible to grow either compositionally homogeneous crystals or core-shell, compositionally graded crystals by changing the ratio of antisolvent to solvent in the AVC method.

UR - http://www.scopus.com/inward/record.url?scp=85087650080&partnerID=8YFLogxK

U2 - https://doi.org/10.1021/acs.cgd.0c00122

DO - https://doi.org/10.1021/acs.cgd.0c00122

M3 - مقالة

SN - 1528-7483

VL - 20

SP - 4366

EP - 4374

JO - Crystal Growth & Design

JF - Crystal Growth & Design

IS - 7

ER -

Single crystal growth and thermal stability of (CH3NH3)1-xCsxPbBr3

Abstract

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