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Periodic Acid Modification of Chemical-Bath Deposited SnO2 Electron Transport Layers for Perovskite Solar Cells and Mini Modules.
Wu, Ziyi; Su, Jiazheng; Chai, Nianyao; Cheng, Siyang; Wang, Xuanyu; Zhang, Ziling; Liu, Xuanling; Zhong, Han; Yang, Jianfei; Wang, Zhiping; Liu, Jianbo; Li, Xin; Lin, Hong.
Afiliación
  • Wu Z; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
  • Su J; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
  • Chai N; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China.
  • Cheng S; Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China School of Physics and Technology, Wuhan University, Wuhan, 430072, P. R. China.
  • Wang X; Hubei Luojia Laboratory, Wuhan, 430072, P. R. China.
  • Zhang Z; Wuhan Institute of Quantum Technology, Wuhan, 430206, P. R. China.
  • Liu X; School of Microelectronics, Wuhan University, Wuhan, 430072, P. R. China.
  • Zhong H; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
  • Yang J; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
  • Wang Z; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
  • Liu J; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
  • Li X; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China.
  • Lin H; Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education of China School of Physics and Technology, Wuhan University, Wuhan, 430072, P. R. China.
Adv Sci (Weinh) ; 10(20): e2300010, 2023 Jul.
Article en En | MEDLINE | ID: mdl-37140187
Chemical bath deposition (CBD) has been demonstrated as a remarkable technology to fabricate high-quality SnO2 electron transport layer (ETL) for large-area perovskite solar cells (PSCs). However, surface defects always exist on the SnO2 film coated by the CBD process, impairing the devices' performance. Here, a facile periodic acid post-treatment (PAPT) method is developed to modify the SnO2 layer. Periodic acid can react with hydroxyl groups on the surface of SnO2 films and oxidize Tin(II) oxide to Tin(IV) oxide. With the help of periodic acid, a better energy level alignment between the SnO2 and perovskite layers is achieved. In addition, the PAPT method inhibits interfacial nonradiative recombination and facilitates charge transportation. Such a multifunctional strategy enables to fabricate PSC with a champion power conversion efficiency (PCE) of 22.25%, which remains 93.32% of its initial efficiency after 3000 h without any encapsulation. Furthermore, 3 × 3 cm2 perovskite mini-modules are presented, achieving a champion efficiency of 18.10%. All these results suggest that the PAPT method is promising for promoting the commercial application of large-area PSCs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Año: 2023 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Sci (Weinh) Año: 2023 Tipo del documento: Article Pais de publicación: Alemania