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Pb-Sn-Cu Ternary Organometallic Halide Perovskite Solar Cells

Meng Li, Zhao-Kui Wang, Ming-Peng Zhuo, Yun Hu, Ke-Hao Hu, Qing-Qing Ye, Sagar Jain, Ying-Guo Yang, Xing-Yu Gao, Liang-Sheng Liao

Advanced Materials, Start page: 1800258

Swansea University Author: Sagar Jain

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DOI (Published version): 10.1002/adma.201800258

Abstract

Exploiting organic/inorganic hybrid perovskite solar cells (PSCs) with reduced Pb content is very important for developing environment‐friendly photovoltaics. Utilizing of Pb–Sn alloying perovskite is considered as an efficient route to reduce the risk of ecosystem pollution. However, the trade‐off...

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Published in: Advanced Materials
ISSN: 0935-9648
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa38884
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first_indexed 2018-02-26T19:48:22Z
last_indexed 2018-05-09T19:33:16Z
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spelling 2018-05-09T16:01:26.0869545 v2 38884 2018-02-26 Pb-Sn-Cu Ternary Organometallic Halide Perovskite Solar Cells 7073e179bb5b82db3e3efd3a8cd07139 Sagar Jain Sagar Jain true false 2018-02-26 EEN Exploiting organic/inorganic hybrid perovskite solar cells (PSCs) with reduced Pb content is very important for developing environment‐friendly photovoltaics. Utilizing of Pb–Sn alloying perovskite is considered as an efficient route to reduce the risk of ecosystem pollution. However, the trade‐off between device performance and Sn substitution ratio due to the instability of Sn2+ is a current dilemma. Here, for the first time, the highly efficient Pb–Sn–Cu ternary PSCs are reported by partial replacing of PbI2 with SnI2 and CuBr2. Sn2+ substitution results in a redshift of the absorption onset, whereas worsens the film quality. Interestingly, Cu2+ introduction can passivate the trap sites at the crystal boundaries of Pb–Sn perovskites effectively. Consequently, a power conversion efficiency as high as 21.08% in inverted planar Pb–Sn–Cu ternary PSCs is approached. The finding opens a new route toward the fabrication of high efficiency Pb–Sn alloying perovskite solar cells by Cu2+ passivation. Journal Article Advanced Materials 1800258 0935-9648 31 12 2018 2018-12-31 10.1002/adma.201800258 2018 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2018-05-09T16:01:26.0869545 2018-02-26T16:58:51.5033772 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Meng Li 1 Zhao-Kui Wang 2 Ming-Peng Zhuo 3 Yun Hu 4 Ke-Hao Hu 5 Qing-Qing Ye 6 Sagar Jain 7 Ying-Guo Yang 8 Xing-Yu Gao 9 Liang-Sheng Liao 10 0038884-26022018170009.pdf li2018(2).pdf 2018-02-26T17:00:09.7400000 Output 2694859 application/pdf Accepted Manuscript true 2019-03-30T00:00:00.0000000 true eng
title Pb-Sn-Cu Ternary Organometallic Halide Perovskite Solar Cells
spellingShingle Pb-Sn-Cu Ternary Organometallic Halide Perovskite Solar Cells
Sagar Jain
title_short Pb-Sn-Cu Ternary Organometallic Halide Perovskite Solar Cells
title_full Pb-Sn-Cu Ternary Organometallic Halide Perovskite Solar Cells
title_fullStr Pb-Sn-Cu Ternary Organometallic Halide Perovskite Solar Cells
title_full_unstemmed Pb-Sn-Cu Ternary Organometallic Halide Perovskite Solar Cells
title_sort Pb-Sn-Cu Ternary Organometallic Halide Perovskite Solar Cells
author_id_str_mv 7073e179bb5b82db3e3efd3a8cd07139
author_id_fullname_str_mv 7073e179bb5b82db3e3efd3a8cd07139_***_Sagar Jain
author Sagar Jain
author2 Meng Li
Zhao-Kui Wang
Ming-Peng Zhuo
Yun Hu
Ke-Hao Hu
Qing-Qing Ye
Sagar Jain
Ying-Guo Yang
Xing-Yu Gao
Liang-Sheng Liao
format Journal article
container_title Advanced Materials
container_start_page 1800258
publishDate 2018
institution Swansea University
issn 0935-9648
doi_str_mv 10.1002/adma.201800258
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Exploiting organic/inorganic hybrid perovskite solar cells (PSCs) with reduced Pb content is very important for developing environment‐friendly photovoltaics. Utilizing of Pb–Sn alloying perovskite is considered as an efficient route to reduce the risk of ecosystem pollution. However, the trade‐off between device performance and Sn substitution ratio due to the instability of Sn2+ is a current dilemma. Here, for the first time, the highly efficient Pb–Sn–Cu ternary PSCs are reported by partial replacing of PbI2 with SnI2 and CuBr2. Sn2+ substitution results in a redshift of the absorption onset, whereas worsens the film quality. Interestingly, Cu2+ introduction can passivate the trap sites at the crystal boundaries of Pb–Sn perovskites effectively. Consequently, a power conversion efficiency as high as 21.08% in inverted planar Pb–Sn–Cu ternary PSCs is approached. The finding opens a new route toward the fabrication of high efficiency Pb–Sn alloying perovskite solar cells by Cu2+ passivation.
published_date 2018-12-31T03:49:19Z
_version_ 1763752395010998272
score 11.036553

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