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

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

doi: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
General Materials Science
Condensed Matter Physics

Access to Document

10.1021/acs.cgd.0c00122License: CC BY

Cite this

@article{21c911fe5ff145b1b9d515fadd4595b1,

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 = "Publisher Copyright: {\textcopyright} 2020 American Chemical Society.",

year = "2020",

month = jul,

day = "1",

doi = "10.1021/acs.cgd.0c00122",

language = "الإنجليزيّة",

volume = "20",

pages = "4366--4374",

journal = "Crystal Growth \& Design",

issn = "1528-7483",

publisher = "American Chemical Society",

number = "7",

}

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

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 - 10.1021/acs.cgd.0c00122

DO - 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

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this