Fabrication of Lead-Free (CH3NH3)3Bi2I9 Perovskite Photovoltaics in Ethanol Solvent

Haijin Li; Congcong Wu; Yongke Yan; Bo Chi; Jian Pu; Jian Li; Shashank Priya

doi:10.1002/cssc.201701470

Fabrication of Lead-Free (CH₃NH₃)₃Bi₂I₉ Perovskite Photovoltaics in Ethanol Solvent

Haijin Li
, Congcong Wu
, Yongke Yan
, Bo Chi
, Jian Pu
, Jian Li
, Shashank Priya

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

45 Scopus citations

Abstract

The toxicity of lead present in organohalide perovskites and the hazardous solvent systems used for their synthesis hinder the deployment of perovskite solar cells (PSCs). Herein, an environmentally friendly route toward bismuth-based, lead-free (CH₃NH₃)₃Bi₂I₉ perovskites that utilize ethanol as the solvent is described. Using this method, dense and homogeneous microstructures were obtained, compared to the porous, rough microstructures obtained using dimethylformamide. Photovoltaic performances were enhanced, with an open-circuit voltage of 0.84 V measured.

Original language	English
Pages (from-to)	3994-3998
Number of pages	5
Journal	ChemSusChem
Volume	10
Issue number	20
DOIs	https://doi.org/10.1002/cssc.201701470
State	Published - 23 Oct 2017
Externally published	Yes

Keywords

bismuth
green solvents
intercalation
lead-free
perovskites

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/cssc.201701470

Cite this

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abstract = "The toxicity of lead present in organohalide perovskites and the hazardous solvent systems used for their synthesis hinder the deployment of perovskite solar cells (PSCs). Herein, an environmentally friendly route toward bismuth-based, lead-free (CH3NH3)3Bi2I9 perovskites that utilize ethanol as the solvent is described. Using this method, dense and homogeneous microstructures were obtained, compared to the porous, rough microstructures obtained using dimethylformamide. Photovoltaic performances were enhanced, with an open-circuit voltage of 0.84 V measured.",

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AU - Li, Haijin

AU - Wu, Congcong

AU - Yan, Yongke

AU - Chi, Bo

AU - Pu, Jian

AU - Li, Jian

AU - Priya, Shashank

PY - 2017/10/23

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AB - The toxicity of lead present in organohalide perovskites and the hazardous solvent systems used for their synthesis hinder the deployment of perovskite solar cells (PSCs). Herein, an environmentally friendly route toward bismuth-based, lead-free (CH3NH3)3Bi2I9 perovskites that utilize ethanol as the solvent is described. Using this method, dense and homogeneous microstructures were obtained, compared to the porous, rough microstructures obtained using dimethylformamide. Photovoltaic performances were enhanced, with an open-circuit voltage of 0.84 V measured.

KW - bismuth

KW - green solvents

KW - intercalation

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KW - perovskites

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