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Enhanced charge carrier extraction and transport with interface modification for efficient tin-based perovskite solar cellsстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Zhao Zhenzhu, Sun Mulin, Xiang Fang, Wu Xuefei, Fink Zachary, Huang Zongming, Gao Junyao, Ding Honghe, Tan Pengju, Yuan Chengjian, Yang Yuqian, Emelianov Nikita A., Frolova Lyubov A., Xiao Zhengguo, Troshin Pavel A., Russell Thomas P., Zhu Junfa, Li Yu, Hu Qin
- Журнал: Journal of Materials Chemistry A
- Том: 13
- Номер: 1
- Год издания: 2025
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 409
- Последняя страница: 417
- DOI: 10.1039/d4ta06046f
- Аннотация: Tin-based perovskites have become the most promising non-lead perovskites due to their ideal band gap and low toxicity. Although the open circuit voltage of tin-based perovskite solar cells (TPSCs) continues to approach the theoretical value, the short-circuit current is still far from the theoretical value. Here, we describe an interface modification method by regulating the property of hole transport layer, PEDOT:PSS, which improves the surface molecular morphology and the energy level alignment of PEDOT:PSS/perovskite interface. Advanced GIWAXS and IR s-SNOM characterization are conducted to achieve multi-dimensional characterization of nanoscale surface morphology and chemical distribution of PEDOT:PSS. With the multi-attribute optimization, charge carrier extraction and non-radiative recombination are also improved. The resultant TPSCs exhibit a higher power conversion efficiency of 13.32% in compared with the control device of 10.50%, accompanied with an increase in the short-circuit current from 18.10 to 20.50 mA cm−2 and FF from 68.23% to 76.43%. This work demonstrates a reliable strategy for improving charge carrier extraction and device performance for lead-free TPSCs.
- Добавил в систему: Емельянов Никита Александрович