Role of Mixed-Cation Perovskites in Hole Conductor-Free Perovskite Solar Cells

Adva Shpatz Dayan; Lioz Etgar

doi:10.1021/acsaem.3c01857

Role of Mixed-Cation Perovskites in Hole Conductor-Free Perovskite Solar Cells

Adva Shpatz Dayan, Lioz Etgar^*

^*Corresponding author for this work

Institute of Chemistry

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

2 Scopus citations

Abstract

In perovskite solar cells, mixed-cation perovskites offer high power conversion efficiencies due to the diverse A⁺ cations. In these cells, the perovskite is sandwiched between electron-transport and hole-transport layers (HTL). This study presents mono- and mixed-cation perovskites in HTL-free cells: monocation (MAPbI₃, FAPbI₃) and mixed cation (MA_0.8FA_0.2PbI₃, FA_0.8MA_0.2PbI₃). Surprisingly, monocation perovskites performed better than mixed-cation perovskites in HTL-free cells due to superior hole mobility and p-type behavior, while mixed-cation perovskites work better in n-i-p and p-i-n cells. These findings highlight the electronic differences for various types of perovskite, impacting the commercialization of perovskite solar cells.

Original language	English
Pages (from-to)	11005-11011
Number of pages	7
Journal	ACS Applied Energy Materials
Volume	6
Issue number	21
DOIs	https://doi.org/10.1021/acsaem.3c01857
State	Published - 13 Nov 2023

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society.

Keywords

charge extraction
electron conductor
hole conductor
hole mobility
perovskite

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10.1021/acsaem.3c01857

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title = "Role of Mixed-Cation Perovskites in Hole Conductor-Free Perovskite Solar Cells",

abstract = "In perovskite solar cells, mixed-cation perovskites offer high power conversion efficiencies due to the diverse A+ cations. In these cells, the perovskite is sandwiched between electron-transport and hole-transport layers (HTL). This study presents mono- and mixed-cation perovskites in HTL-free cells: monocation (MAPbI3, FAPbI3) and mixed cation (MA0.8FA0.2PbI3, FA0.8MA0.2PbI3). Surprisingly, monocation perovskites performed better than mixed-cation perovskites in HTL-free cells due to superior hole mobility and p-type behavior, while mixed-cation perovskites work better in n-i-p and p-i-n cells. These findings highlight the electronic differences for various types of perovskite, impacting the commercialization of perovskite solar cells.",

keywords = "charge extraction, electron conductor, hole conductor, hole mobility, perovskite",

author = "{Shpatz Dayan}, Adva and Lioz Etgar",

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N2 - In perovskite solar cells, mixed-cation perovskites offer high power conversion efficiencies due to the diverse A+ cations. In these cells, the perovskite is sandwiched between electron-transport and hole-transport layers (HTL). This study presents mono- and mixed-cation perovskites in HTL-free cells: monocation (MAPbI3, FAPbI3) and mixed cation (MA0.8FA0.2PbI3, FA0.8MA0.2PbI3). Surprisingly, monocation perovskites performed better than mixed-cation perovskites in HTL-free cells due to superior hole mobility and p-type behavior, while mixed-cation perovskites work better in n-i-p and p-i-n cells. These findings highlight the electronic differences for various types of perovskite, impacting the commercialization of perovskite solar cells.

AB - In perovskite solar cells, mixed-cation perovskites offer high power conversion efficiencies due to the diverse A+ cations. In these cells, the perovskite is sandwiched between electron-transport and hole-transport layers (HTL). This study presents mono- and mixed-cation perovskites in HTL-free cells: monocation (MAPbI3, FAPbI3) and mixed cation (MA0.8FA0.2PbI3, FA0.8MA0.2PbI3). Surprisingly, monocation perovskites performed better than mixed-cation perovskites in HTL-free cells due to superior hole mobility and p-type behavior, while mixed-cation perovskites work better in n-i-p and p-i-n cells. These findings highlight the electronic differences for various types of perovskite, impacting the commercialization of perovskite solar cells.

KW - charge extraction

KW - electron conductor

KW - hole conductor

KW - hole mobility

KW - perovskite

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Role of Mixed-Cation Perovskites in Hole Conductor-Free Perovskite Solar Cells

Abstract

Bibliographical note

Keywords

UN SDGs

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