Influence of A-Site Cation Composition on the Electronic Properties of Halide Tin Perovskites

Roba Tounesi; Luis Huerta Hernandez; Luis Lanzetta; Soyeong Jang; Bambar Davaasuren; Md Azimul Haque; Derya Baran

doi:10.1021/acsaelm.3c00398

Influence of A-Site Cation Composition on the Electronic Properties of Halide Tin Perovskites

Roba Tounesi, Luis Huerta Hernandez, Luis Lanzetta, Soyeong Jang, Bambar Davaasuren, Md Azimul Haque^*, Derya Baran^*

^*Corresponding author for this work

Research output: Contribution to journal › Review article › peer-review

2 Scopus citations

Abstract

Tin halide perovskites are interesting as a potential replacement for lead-based perovskites in various device technologies. However, their charge transport properties have received limited attention compared to those of their lead-based counterparts. In particular, the effect of the A-site cation on the electronic properties of tin perovskites warrants further attention to design efficient material systems for various applications beyond photovoltaics. In this study, we explore the relationship between the A-site composition and electronic properties in tin perovskites (ASnI₃) by leveraging the composition tunability of halide perovskites. We investigate the effect of prototypical A-site cations such as formamidinium (FA), methylammonium (MA), and cesium (Cs) and their binary combinations on structure, morphology, and electronic properties of ASnI₃. Our findings reveal that the MA-Cs combination offers the highest electrical conductivity owing to simultaneously enhanced mobility and carrier density compared to single-cation compositions based on MA and Cs resulting in a thermoelectric power factor of ∼162 μW m^-1 K^-2. The library of properties generated for Sn perovskites in this work will be valuable for their further development as an electronic material.

Original language	English (US)
Pages (from-to)	2826-2831
Number of pages	6
Journal	ACS Applied Electronic Materials
Volume	6
Issue number	5
DOIs	https://doi.org/10.1021/acsaelm.3c00398
State	Accepted/In press - 2023

Keywords

charge transport
compositional engineering
electrical properties
Perovskite
thermoelectrics

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Materials Chemistry
Electrochemistry

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10.1021/acsaelm.3c00398

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title = "Influence of A-Site Cation Composition on the Electronic Properties of Halide Tin Perovskites",

abstract = "Tin halide perovskites are interesting as a potential replacement for lead-based perovskites in various device technologies. However, their charge transport properties have received limited attention compared to those of their lead-based counterparts. In particular, the effect of the A-site cation on the electronic properties of tin perovskites warrants further attention to design efficient material systems for various applications beyond photovoltaics. In this study, we explore the relationship between the A-site composition and electronic properties in tin perovskites (ASnI3) by leveraging the composition tunability of halide perovskites. We investigate the effect of prototypical A-site cations such as formamidinium (FA), methylammonium (MA), and cesium (Cs) and their binary combinations on structure, morphology, and electronic properties of ASnI3. Our findings reveal that the MA-Cs combination offers the highest electrical conductivity owing to simultaneously enhanced mobility and carrier density compared to single-cation compositions based on MA and Cs resulting in a thermoelectric power factor of ∼162 μW m-1 K-2. The library of properties generated for Sn perovskites in this work will be valuable for their further development as an electronic material.",

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author = "Roba Tounesi and Hernandez, {Luis Huerta} and Luis Lanzetta and Soyeong Jang and Bambar Davaasuren and Haque, {Md Azimul} and Derya Baran",

note = "Funding Information: This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-CRG2018-3737. Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

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T1 - Influence of A-Site Cation Composition on the Electronic Properties of Halide Tin Perovskites

AU - Tounesi, Roba

AU - Hernandez, Luis Huerta

AU - Lanzetta, Luis

AU - Jang, Soyeong

AU - Davaasuren, Bambar

AU - Haque, Md Azimul

AU - Baran, Derya

N1 - Funding Information: This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-CRG2018-3737. Publisher Copyright: © 2023 American Chemical Society.

PY - 2023

Y1 - 2023

N2 - Tin halide perovskites are interesting as a potential replacement for lead-based perovskites in various device technologies. However, their charge transport properties have received limited attention compared to those of their lead-based counterparts. In particular, the effect of the A-site cation on the electronic properties of tin perovskites warrants further attention to design efficient material systems for various applications beyond photovoltaics. In this study, we explore the relationship between the A-site composition and electronic properties in tin perovskites (ASnI3) by leveraging the composition tunability of halide perovskites. We investigate the effect of prototypical A-site cations such as formamidinium (FA), methylammonium (MA), and cesium (Cs) and their binary combinations on structure, morphology, and electronic properties of ASnI3. Our findings reveal that the MA-Cs combination offers the highest electrical conductivity owing to simultaneously enhanced mobility and carrier density compared to single-cation compositions based on MA and Cs resulting in a thermoelectric power factor of ∼162 μW m-1 K-2. The library of properties generated for Sn perovskites in this work will be valuable for their further development as an electronic material.

AB - Tin halide perovskites are interesting as a potential replacement for lead-based perovskites in various device technologies. However, their charge transport properties have received limited attention compared to those of their lead-based counterparts. In particular, the effect of the A-site cation on the electronic properties of tin perovskites warrants further attention to design efficient material systems for various applications beyond photovoltaics. In this study, we explore the relationship between the A-site composition and electronic properties in tin perovskites (ASnI3) by leveraging the composition tunability of halide perovskites. We investigate the effect of prototypical A-site cations such as formamidinium (FA), methylammonium (MA), and cesium (Cs) and their binary combinations on structure, morphology, and electronic properties of ASnI3. Our findings reveal that the MA-Cs combination offers the highest electrical conductivity owing to simultaneously enhanced mobility and carrier density compared to single-cation compositions based on MA and Cs resulting in a thermoelectric power factor of ∼162 μW m-1 K-2. The library of properties generated for Sn perovskites in this work will be valuable for their further development as an electronic material.

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KW - electrical properties

KW - Perovskite

KW - thermoelectrics

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Influence of A-Site Cation Composition on the Electronic Properties of Halide Tin Perovskites

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ASJC Scopus subject areas

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