Crystal Growth Promotion and Defect Passivation by Hydrothermal and Selenized Deposition for Substrate-Structured Antimony Selenosulfide Solar Cells - Université de Rennes Accéder directement au contenu
Article Dans Une Revue ACS Applied Materials & Interfaces Année : 2022

Crystal Growth Promotion and Defect Passivation by Hydrothermal and Selenized Deposition for Substrate-Structured Antimony Selenosulfide Solar Cells

Guo-Jie Chen
  • Fonction : Auteur
Rong Tang
  • Fonction : Auteur
  • PersonId : 1069131
Shuo Chen
Zhuang-Hao Zheng
Zhenghua Su
  • Fonction : Auteur
Hong-Li Ma
Xianghua Zhang
Ping Fan
Guang-Xing Liang
  • Fonction : Auteur correspondant
  • PersonId : 1069088

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Résumé

Antimony sulfide-selenide (Sb-2(S,Se)(3)) is a promising light-harvesting material for stable and high-efficiency thin-film photovoltaics (PV) because of its excellent light-harvesting capability, abundant elemental storage, and excellent stability. This study aimed to expand the application of Sb-2(S,Se)(3) solar cells with a substrate structure as a flexible or tandem device. The use of a hydrothermal method accompanied by a postselenization process for the deposition of Sb-2(S,Se)(3) film based on the solar cell substrate structure was first demonstrated. The mechanism of postselenization treatment on crystal growth promotion of the Sb-2(S,Se)(3) film and the defect passivation of the Sb-2(S,Se)(3) solar cell were revealed through different characterization methods. The crystallinity and the carrier transport property of the Sb-2(S,Se)(3) film improved, and both the interface defect density of the Sb-2(S,Se)(3)/CdS interface and the bulk defect density of the Sb-2(S,Se)(3) absorber decreased. Through these above-mentioned processes, the transport and collection of electronics can be improved, and the defect recombination loss can be reduced. By using postselenization treatment to optimize the absorber layer, Sb-2(S,Se)(3) solar cells with the configuration SLG/Mo/Sb-2(S,Se)(3/)CdS/ ITO/Ag achieved an efficiency of 4.05%. This work can provide valuable information for the further development and improvement of Sb-2(S,Se)(3) solar cells.
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Dates et versions

hal-03773013 , version 1 (15-06-2023)

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Guo-Jie Chen, Rong Tang, Shuo Chen, Zhuang-Hao Zheng, Zhenghua Su, et al.. Crystal Growth Promotion and Defect Passivation by Hydrothermal and Selenized Deposition for Substrate-Structured Antimony Selenosulfide Solar Cells. ACS Applied Materials & Interfaces, 2022, 14 (28), pp.31986-31997. ⟨10.1021/acsami.2c06805⟩. ⟨hal-03773013⟩
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