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Multifunctional Modification of the Buried Interface in Mixed Tin-Lead Perovskite Solar Cells.
Sun, Xinru; Wu, Hongzhuo; Li, Zhihao; Zhu, Rui; Li, Guixiang; Su, Zhenhuang; Zhang, Junhan; Gao, Xingyu; Pascual, Jorge; Abate, Antonio; Li, Meng.
Afiliación
  • Sun X; Henan University, Key Lab for Special Functional Materials, Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials
  • Wu H; Henan University, Key Lab for Special Functional Materials, Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials
  • Li Z; Henan University, School of Nanoscience and Materials Engineering, CHINA.
  • Zhu R; Henan University, Key Lab for Special Functional Materials, Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials
  • Li G; Helmholtz-Zentrum Hereon, Materialien und Energie GmbH, GERMANY.
  • Su Z; Shanghai Advanced Research Institute, Shanghai Synchrotron Radiation Facility, CHINA.
  • Zhang J; Shanghai Advanced Research Institute, Shanghai Synchrotron Radiation Facility, CHINA.
  • Gao X; Shanghai Advanced Research Institute, Shanghai Synchrotron Radiation Facility, CHINA.
  • Pascual J; University of the Basque Country UPV/EHU, Department of Graphic Design and Engineering Projects, Joxe Mari Korta, SPAIN.
  • Abate A; Helmholtz-Zentrum Hereon, Materialien und Energie GmbH, GERMANY.
  • Li M; Henan University, Key Lab for Special Functional Materials, Jinming Avenue North, Longting District, 475001, Kaifeng, CHINA.
Angew Chem Int Ed Engl ; : e202409330, 2024 Aug 05.
Article en En | MEDLINE | ID: mdl-39101678
ABSTRACT
Mixed tin-lead perovskite solar cells can reach bandgaps as low as 1.2 eV, offering high theoretical efficiency and serving as base materials for all-perovskite tandem solar cells. However, instability and high defect densities at the interfaces, particularly the buried surface, have limited performance improvements. In this work, we present the modification of the bottom perovskite interface with multifunctional hydroxylamine salts. These salts can effectively coordinate the different perovskite components, having critical influences in regulating the crystallization process and passivating defects of varying nature. The surface modification reduced traps at the interface and prevented the formation of excessive lead iodide, enhancing the quality of the films. The modified devices presented fill factors reaching 81% and efficiencies of up to 23.8%. The unencapsulated modified devices maintained over 95% of their initial efficiency after 2000 h of shelf storage.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article Pais de publicación: Alemania