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Enhancing Performance and Stability of Perovskite Solar Cells with a Novel Formamidine Group Additive.
Zhang, Jing; She, Yutong; Zhu, Yujie; Su, Hang; Zheng, Xinxin; Yao, Yuyin; Li, Deng; Liu, Shengzhong Frank.
Afiliação
  • Zhang J; Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, Institute for Adv. Energy Mater., School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, Sha
  • She Y; Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, Institute for Adv. Energy Mater., School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, Sha
  • Zhu Y; Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, Institute for Adv. Energy Mater., School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, Sha
  • Su H; Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, Institute for Adv. Energy Mater., School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, Sha
  • Zheng X; Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.
  • Yao Y; Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, Institute for Adv. Energy Mater., School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, Sha
  • Li D; Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, Institute for Adv. Energy Mater., School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, Sha
  • Liu SF; Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, Institute for Adv. Energy Mater., School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, Sha
Small ; : e2402557, 2024 Jun 06.
Article em En | MEDLINE | ID: mdl-38845022
ABSTRACT
Perovskite materials, particularly FAPbI3, have emerged as promising candidates for solar energy conversion applications. However, these materials are plagued by well-known defects and suboptimal film quality. Enhancing crystallinity and minimizing defect density are therefore essential steps in the development of high-performance perovskite solar cells. In this study, 1H-Pyrazole-1-carboximidamide hydrochloride (PCH) is introduced into FAPbI3 perovskite films. The molecular structure of PCH features a pyrazole ring bonded to formamidine (FA). The FA moiety of PCH facilitated the incorporation of this additive into the film lattice, while the negatively charged pyrazole ring effectively passivated positively charged iodine vacancies. The presence of PCH led to the fabrication of an FAPbI3 device with improved crystallinity, a smoother surface, and reduced defect density, resulting in enhanced Voc and fill factor. A record power conversion efficiency of 24.62% is achieved, along with exceptional stability under prolonged air exposure and thermal stress. The findings highlight the efficacy of PCH as a novel additive for the development of high-performance perovskite solar cells.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article