Thin-Film Solar Cells Based on Selenized CuSbS2 Absorber

Copper antimony sulfide (CuSbS2) has attracted significant interest as an earth-abundant photovoltaic absorber. However, the efficiency of the current CuSbS2 photovoltaic device is too low to meet the requirement of a large-scale application. In this stu...

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Autores principales:	Minghao Zhao, Junsheng Yu, Lijuan Fu, Youwei Guan, Hua Tang, Lu Li, Jiang Cheng
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	thin film solar cells CuSbS<sub>2</sub> CuSbS<sub>2</sub>(Se) spray pyrolysis deposition selenylation Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/288d422de20a48ad9bad801bdf2adf67
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spelling	oai:doaj.org-article:288d422de20a48ad9bad801bdf2adf672021-11-25T18:31:39ZThin-Film Solar Cells Based on Selenized CuSbS<sub>2</sub> Absorber10.3390/nano111130052079-4991https://doaj.org/article/288d422de20a48ad9bad801bdf2adf672021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3005https://doaj.org/toc/2079-4991Copper antimony sulfide (CuSbS<sub>2</sub>) has attracted significant interest as an earth-abundant photovoltaic absorber. However, the efficiency of the current CuSbS<sub>2</sub> photovoltaic device is too low to meet the requirement of a large-scale application. In this study, selenylation was introduced to optimize the band structure and improve the device performance. Selenized CuSbS<sub>2</sub> [CuSbS<sub>2</sub>(Se)] films were realized using porous CuSbS<sub>2</sub> films prepared by spray deposition with a post-treatment in Se vapor. The as-prepared CuSbS<sub>2</sub>(Se) films exhibited a compact structure. X-ray diffraction and elemental analysis confirmed the effective doping of Se into the lattice by substituting a part of S in CuSbS<sub>2</sub>. Elemental analysis revealed a gradient distribution for Se from the top surface to the deeper regions, and the substitution rate was very high (>39%). Dark J–V characteristics and AC impedance spectroscopy analysis showed that selenylation significantly reduced the carrier recombination center. As a result, the selenized CuSbS<sub>2</sub> device exhibited a significant efficiency improvement from 0.12% to 0.90%, which is much higher than that of the simply annealed device (0.46%), indicating this technique is a promising approach to improve the performance of CuSbS<sub>2</sub> solar cells.Minghao ZhaoJunsheng YuLijuan FuYouwei GuanHua TangLu LiJiang ChengMDPI AGarticlethin film solar cellsCuSbS<sub>2</sub>CuSbS<sub>2</sub>(Se)spray pyrolysis depositionselenylationChemistryQD1-999ENNanomaterials, Vol 11, Iss 3005, p 3005 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	thin film solar cells CuSbS<sub>2</sub> CuSbS<sub>2</sub>(Se) spray pyrolysis deposition selenylation Chemistry QD1-999
spellingShingle	thin film solar cells CuSbS<sub>2</sub> CuSbS<sub>2</sub>(Se) spray pyrolysis deposition selenylation Chemistry QD1-999 Minghao Zhao Junsheng Yu Lijuan Fu Youwei Guan Hua Tang Lu Li Jiang Cheng Thin-Film Solar Cells Based on Selenized CuSbS<sub>2</sub> Absorber
description	Copper antimony sulfide (CuSbS<sub>2</sub>) has attracted significant interest as an earth-abundant photovoltaic absorber. However, the efficiency of the current CuSbS<sub>2</sub> photovoltaic device is too low to meet the requirement of a large-scale application. In this study, selenylation was introduced to optimize the band structure and improve the device performance. Selenized CuSbS<sub>2</sub> [CuSbS<sub>2</sub>(Se)] films were realized using porous CuSbS<sub>2</sub> films prepared by spray deposition with a post-treatment in Se vapor. The as-prepared CuSbS<sub>2</sub>(Se) films exhibited a compact structure. X-ray diffraction and elemental analysis confirmed the effective doping of Se into the lattice by substituting a part of S in CuSbS<sub>2</sub>. Elemental analysis revealed a gradient distribution for Se from the top surface to the deeper regions, and the substitution rate was very high (>39%). Dark J–V characteristics and AC impedance spectroscopy analysis showed that selenylation significantly reduced the carrier recombination center. As a result, the selenized CuSbS<sub>2</sub> device exhibited a significant efficiency improvement from 0.12% to 0.90%, which is much higher than that of the simply annealed device (0.46%), indicating this technique is a promising approach to improve the performance of CuSbS<sub>2</sub> solar cells.
format	article
author	Minghao Zhao Junsheng Yu Lijuan Fu Youwei Guan Hua Tang Lu Li Jiang Cheng
author_facet	Minghao Zhao Junsheng Yu Lijuan Fu Youwei Guan Hua Tang Lu Li Jiang Cheng
author_sort	Minghao Zhao
title	Thin-Film Solar Cells Based on Selenized CuSbS<sub>2</sub> Absorber
title_short	Thin-Film Solar Cells Based on Selenized CuSbS<sub>2</sub> Absorber
title_full	Thin-Film Solar Cells Based on Selenized CuSbS<sub>2</sub> Absorber
title_fullStr	Thin-Film Solar Cells Based on Selenized CuSbS<sub>2</sub> Absorber
title_full_unstemmed	Thin-Film Solar Cells Based on Selenized CuSbS<sub>2</sub> Absorber
title_sort	thin-film solar cells based on selenized cusbs<sub>2</sub> absorber
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/288d422de20a48ad9bad801bdf2adf67
work_keys_str_mv	AT minghaozhao thinfilmsolarcellsbasedonselenizedcusbssub2subabsorber AT junshengyu thinfilmsolarcellsbasedonselenizedcusbssub2subabsorber AT lijuanfu thinfilmsolarcellsbasedonselenizedcusbssub2subabsorber AT youweiguan thinfilmsolarcellsbasedonselenizedcusbssub2subabsorber AT huatang thinfilmsolarcellsbasedonselenizedcusbssub2subabsorber AT luli thinfilmsolarcellsbasedonselenizedcusbssub2subabsorber AT jiangcheng thinfilmsolarcellsbasedonselenizedcusbssub2subabsorber
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Thin-Film Solar Cells Based on Selenized CuSbS<sub>2</sub> Absorber

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