Precursor engineering of lead acetate-based precursors for high-open-circuit voltage wide-bandgap perovskite solar cells

Jie Zhao; Anthony S.R. Chesman; Junlin Yan; Luke J. Sutherland; Jacek Jasieniak; Jianfeng Lu; Wenxin Mao; Udo Bach

doi:10.1021/acsami.2c22179

Precursor engineering of lead acetate-based precursors for high-open-circuit voltage wide-bandgap perovskite solar cells

Jie Zhao, Anthony S.R. Chesman, Junlin Yan, Luke J. Sutherland, Jacek Jasieniak, Jianfeng Lu, Wenxin Mao, Udo Bach

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

6 Citations (Scopus)

Abstract

Wide-bandgap (WBG) perovskites have great potential for inclusion in efficient tandem solar cells, but large open-circuit voltage losses have limited device performance to date. Here, we show that a high-quality WBG perovskite, FA_0.83Cs_0.17Pb(I_0.8Br_0.2)₃, with enlarged grain sizes and improved crystallinity can be achieved by incorporating lead chloride (PbCl₂) into a lead acetate (PbAc₂)-based precursor. The improved film quality resulted in the suppression of nonradiative recombination and a reduction in defect density. Efficient WBG perovskite solar cells (1.66 eV) with an efficiency of 19.3% and a high V_oc of 1.22 V were fabricated using a facile one-step spin-coating method without the need for an antisolvent. Notably, the unencapsulated devices retained 90% of their initial power conversion efficiency after storage in a dry box (10% humidity) for 800 h.

Original language	English
Pages (from-to)	18800-18807
Number of pages	8
Journal	ACS Applied Materials & Interfaces
Volume	15
Issue number	15
DOIs	https://doi.org/10.1021/acsami.2c22179
Publication status	Published - 19 Apr 2023

Keywords

high open-circuit voltage
lead acetate
lead chloride
solar cells
wide-bandgap

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10.1021/acsami.2c22179

Cite this

@article{c477a7ab26ea40449f5922104324de9e,

title = "Precursor engineering of lead acetate-based precursors for high-open-circuit voltage wide-bandgap perovskite solar cells",

abstract = "Wide-bandgap (WBG) perovskites have great potential for inclusion in efficient tandem solar cells, but large open-circuit voltage losses have limited device performance to date. Here, we show that a high-quality WBG perovskite, FA0.83Cs0.17Pb(I0.8Br0.2)3, with enlarged grain sizes and improved crystallinity can be achieved by incorporating lead chloride (PbCl2) into a lead acetate (PbAc2)-based precursor. The improved film quality resulted in the suppression of nonradiative recombination and a reduction in defect density. Efficient WBG perovskite solar cells (1.66 eV) with an efficiency of 19.3% and a high Voc of 1.22 V were fabricated using a facile one-step spin-coating method without the need for an antisolvent. Notably, the unencapsulated devices retained 90% of their initial power conversion efficiency after storage in a dry box (10% humidity) for 800 h.",

keywords = "high open-circuit voltage, lead acetate, lead chloride, solar cells, wide-bandgap",

author = "Jie Zhao and Chesman, {Anthony S.R.} and Junlin Yan and Sutherland, {Luke J.} and Jacek Jasieniak and Jianfeng Lu and Wenxin Mao and Udo Bach",

note = "Funding Information: This work was financially supported by the Australian Research Council through the Centre of Excellence in Exciton Science (CE170100026) and additional grants (DP160104575 and LE170100235). The authors acknowledge financial support from the Australian Government through the Australian Renewable Energy Agency (ARENA) and the Australian Centre for Advanced Photovoltaics (ACAP). The authors acknowledge the use of facilities within the Monash Centre for Electron Microscopy (MCEM), Monash X-Ray Platform (MXP). Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

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doi = "10.1021/acsami.2c22179",

language = "English",

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journal = "ACS Applied Materials & Interfaces",

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publisher = "American Chemical Society",

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T1 - Precursor engineering of lead acetate-based precursors for high-open-circuit voltage wide-bandgap perovskite solar cells

AU - Zhao, Jie

AU - Chesman, Anthony S.R.

AU - Yan, Junlin

AU - Sutherland, Luke J.

AU - Jasieniak, Jacek

AU - Lu, Jianfeng

AU - Mao, Wenxin

AU - Bach, Udo

N1 - Funding Information: This work was financially supported by the Australian Research Council through the Centre of Excellence in Exciton Science (CE170100026) and additional grants (DP160104575 and LE170100235). The authors acknowledge financial support from the Australian Government through the Australian Renewable Energy Agency (ARENA) and the Australian Centre for Advanced Photovoltaics (ACAP). The authors acknowledge the use of facilities within the Monash Centre for Electron Microscopy (MCEM), Monash X-Ray Platform (MXP). Publisher Copyright: © 2023 American Chemical Society.

PY - 2023/4/19

Y1 - 2023/4/19

N2 - Wide-bandgap (WBG) perovskites have great potential for inclusion in efficient tandem solar cells, but large open-circuit voltage losses have limited device performance to date. Here, we show that a high-quality WBG perovskite, FA0.83Cs0.17Pb(I0.8Br0.2)3, with enlarged grain sizes and improved crystallinity can be achieved by incorporating lead chloride (PbCl2) into a lead acetate (PbAc2)-based precursor. The improved film quality resulted in the suppression of nonradiative recombination and a reduction in defect density. Efficient WBG perovskite solar cells (1.66 eV) with an efficiency of 19.3% and a high Voc of 1.22 V were fabricated using a facile one-step spin-coating method without the need for an antisolvent. Notably, the unencapsulated devices retained 90% of their initial power conversion efficiency after storage in a dry box (10% humidity) for 800 h.

AB - Wide-bandgap (WBG) perovskites have great potential for inclusion in efficient tandem solar cells, but large open-circuit voltage losses have limited device performance to date. Here, we show that a high-quality WBG perovskite, FA0.83Cs0.17Pb(I0.8Br0.2)3, with enlarged grain sizes and improved crystallinity can be achieved by incorporating lead chloride (PbCl2) into a lead acetate (PbAc2)-based precursor. The improved film quality resulted in the suppression of nonradiative recombination and a reduction in defect density. Efficient WBG perovskite solar cells (1.66 eV) with an efficiency of 19.3% and a high Voc of 1.22 V were fabricated using a facile one-step spin-coating method without the need for an antisolvent. Notably, the unencapsulated devices retained 90% of their initial power conversion efficiency after storage in a dry box (10% humidity) for 800 h.

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Precursor engineering of lead acetate-based precursors for high-open-circuit voltage wide-bandgap perovskite solar cells

Abstract

Keywords

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Other files and links

ARC Centre of Excellence in Exciton Science

Centre for Electron Microscopy (MCEM)

X-ray Platform (MXP)

Cite this

Precursor engineering of lead acetate-based precursors for high-open-circuit voltage wide-bandgap perovskite solar cells

Abstract

Keywords

Access to Document

Other files and links

Projects

ARC Centre of Excellence in Exciton Science

Equipment

Centre for Electron Microscopy (MCEM)

X-ray Platform (MXP)

Cite this