High-Efficiency CsPbBr3 Perovskite Solar Cells Obtained by Adding NH4Ac in Ambient Air Conditions

Boyuan Yang; Wangshu Xu; Shu Tang; Wanfei Shi; Jingjing Dong; Hao Liu; Jie Xing; Huiying Hao

doi:10.1021/acsaem.4c01871

High-Efficiency CsPbBr₃ Perovskite Solar Cells Obtained by Adding NH₄Ac in Ambient Air Conditions

Boyuan Yang, Wangshu Xu, Shu Tang, Wanfei Shi, Jingjing Dong, Hao Liu, Jie Xing, Huiying Hao

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

Abstract

Stability is a crucial factor in the commercialization of perovskite solar cells (PSCs). CsPbBr₃ PSCs, despite being less efficient than organic-inorganic hybrid PSCs, have a significant advantage in terms of stability. This makes them have promising potential for commercialization. In this study, high-quality all-inorganic CsPbBr₃ perovskite films were prepared by using a multistep method in ambient air conditions. The crystalline quality of the CsPbBr₃ films was improved by adding an appropriate amount of ammonium acetate (NH₄Ac) to the PbBr₂ precursor solution. Finally, carbon-based hole transport layer-free CsPbBr₃ PSCs were fabricated by selecting NH₄Ac-optimized light-absorbing layers and carbon electrodes that have a good commercialization prospect. Compared with control devices, the NH₄Ac-optimized CsPbBr₃ cell devices significantly improved in both efficiency and stability. The photoelectric conversion efficiency increased from 7.80% to 9.68%. This study provides an effective strategy for the preparation of high-quality films by using a multistep method and is also of great significance in promoting the commercialization of PSCs.

Original language	English
Pages (from-to)	10367-10375
Number of pages	9
Journal	ACS Applied Energy Materials
Volume	7
Issue number	22
DOIs	https://doi.org/10.1021/acsaem.4c01871
State	Published - Nov 25 2024
Externally published	Yes

Funding

The authors gratefully acknowledge the financial support from the Open Foundation of Key Laboratory of Semiconductor Materials Science Institute of Semiconductors, Chinese Academy of Sciences (grant no. KLSMS-1901). Open Foundation of Key Laboratory of Semiconductor Materials Science Institute of Semiconductors, Chinese Academy of Sciences (grant no. KLSMS-1901). The authors gratefully acknowledge the financial support from the Open Foundation of Key Laboratory of Semiconductor Materials Science Institute of Semiconductors, Chinese Academy of Sciences (grant no. KLSMS-1901).

Keywords

CsPbBr perovskite solar cells
NHAc
ambient air conditions
carbon electrode
intermediate phase

Access to Document

10.1021/acsaem.4c01871

Cite this

@article{2dfa993fc24c48fbbad2c2b051bb24f6,

title = "High-Efficiency CsPbBr3 Perovskite Solar Cells Obtained by Adding NH4Ac in Ambient Air Conditions",

abstract = "Stability is a crucial factor in the commercialization of perovskite solar cells (PSCs). CsPbBr3 PSCs, despite being less efficient than organic-inorganic hybrid PSCs, have a significant advantage in terms of stability. This makes them have promising potential for commercialization. In this study, high-quality all-inorganic CsPbBr3 perovskite films were prepared by using a multistep method in ambient air conditions. The crystalline quality of the CsPbBr3 films was improved by adding an appropriate amount of ammonium acetate (NH4Ac) to the PbBr2 precursor solution. Finally, carbon-based hole transport layer-free CsPbBr3 PSCs were fabricated by selecting NH4Ac-optimized light-absorbing layers and carbon electrodes that have a good commercialization prospect. Compared with control devices, the NH4Ac-optimized CsPbBr3 cell devices significantly improved in both efficiency and stability. The photoelectric conversion efficiency increased from 7.80% to 9.68%. This study provides an effective strategy for the preparation of high-quality films by using a multistep method and is also of great significance in promoting the commercialization of PSCs.",

keywords = "CsPbBr perovskite solar cells, NHAc, ambient air conditions, carbon electrode, intermediate phase",

author = "Boyuan Yang and Wangshu Xu and Shu Tang and Wanfei Shi and Jingjing Dong and Hao Liu and Jie Xing and Huiying Hao",

note = "Publisher Copyright: {\textcopyright} 2024 American Chemical Society.",

year = "2024",

month = nov,

day = "25",

doi = "10.1021/acsaem.4c01871",

language = "English",

volume = "7",

pages = "10367--10375",

journal = "ACS Applied Energy Materials",

issn = "2574-0962",

publisher = "American Chemical Society",

number = "22",

}

TY - JOUR

T1 - High-Efficiency CsPbBr3 Perovskite Solar Cells Obtained by Adding NH4Ac in Ambient Air Conditions

AU - Yang, Boyuan

AU - Xu, Wangshu

AU - Tang, Shu

AU - Shi, Wanfei

AU - Dong, Jingjing

AU - Liu, Hao

AU - Xing, Jie

AU - Hao, Huiying

PY - 2024/11/25

Y1 - 2024/11/25

N2 - Stability is a crucial factor in the commercialization of perovskite solar cells (PSCs). CsPbBr3 PSCs, despite being less efficient than organic-inorganic hybrid PSCs, have a significant advantage in terms of stability. This makes them have promising potential for commercialization. In this study, high-quality all-inorganic CsPbBr3 perovskite films were prepared by using a multistep method in ambient air conditions. The crystalline quality of the CsPbBr3 films was improved by adding an appropriate amount of ammonium acetate (NH4Ac) to the PbBr2 precursor solution. Finally, carbon-based hole transport layer-free CsPbBr3 PSCs were fabricated by selecting NH4Ac-optimized light-absorbing layers and carbon electrodes that have a good commercialization prospect. Compared with control devices, the NH4Ac-optimized CsPbBr3 cell devices significantly improved in both efficiency and stability. The photoelectric conversion efficiency increased from 7.80% to 9.68%. This study provides an effective strategy for the preparation of high-quality films by using a multistep method and is also of great significance in promoting the commercialization of PSCs.

AB - Stability is a crucial factor in the commercialization of perovskite solar cells (PSCs). CsPbBr3 PSCs, despite being less efficient than organic-inorganic hybrid PSCs, have a significant advantage in terms of stability. This makes them have promising potential for commercialization. In this study, high-quality all-inorganic CsPbBr3 perovskite films were prepared by using a multistep method in ambient air conditions. The crystalline quality of the CsPbBr3 films was improved by adding an appropriate amount of ammonium acetate (NH4Ac) to the PbBr2 precursor solution. Finally, carbon-based hole transport layer-free CsPbBr3 PSCs were fabricated by selecting NH4Ac-optimized light-absorbing layers and carbon electrodes that have a good commercialization prospect. Compared with control devices, the NH4Ac-optimized CsPbBr3 cell devices significantly improved in both efficiency and stability. The photoelectric conversion efficiency increased from 7.80% to 9.68%. This study provides an effective strategy for the preparation of high-quality films by using a multistep method and is also of great significance in promoting the commercialization of PSCs.

KW - CsPbBr perovskite solar cells

KW - NHAc

KW - ambient air conditions

KW - carbon electrode

KW - intermediate phase

UR - http://www.scopus.com/inward/record.url?scp=85209253082&partnerID=8YFLogxK

U2 - 10.1021/acsaem.4c01871

DO - 10.1021/acsaem.4c01871

M3 - Article

AN - SCOPUS:85209253082

SN - 2574-0962

VL - 7

SP - 10367

EP - 10375

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 22

ER -