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Enhancing the photovoltaic performance of printable mesoscopic perovskite solar cells via5-amino-4-formylimidazole hydrochloride

التفاصيل البيبلوغرافية
العنوان: Enhancing the photovoltaic performance of printable mesoscopic perovskite solar cells via5-amino-4-formylimidazole hydrochloride
المؤلفون: Guo, Rongrong, Zhang, Shengjian, Chen, Yiwen, Wang, Dongjie, Wu, Chenshu, Wang, Longbo, Tao, Ying, Zhu, Wending, Zhang, Haohua, Chen, Changqing, Xiong, Jian, Zhang, Zheling, Huang, Yu, Zhang, Jian
المصدر: Science China Materials; December 2023, Vol. 66 Issue: 12 p4622-4629, 8p
مستخلص: Hole conductor-free printable mesoscopic perovskite solar cells (p-MPSCs), comprising m-TiO2/m-ZrO2/C triple mesoscopic layers, have emerged as a promising photovoltaic technology for commercial applications because of their low cost, easy operation, and outstanding stability. However, p-MPSCs suffer from a considerable open-circuit voltage (VOC) loss compared with traditional PSCs, resulting in a discernible disparity in power conversion efficiency (PCE) between p-MPSCs and traditional PSCs. In this article, we present a novel approach employing 5-amino-4-carboxamide imidazole hydrochloride (AICA) to enhance VOCof p-MPSCs. AICA demonstrates a dual function, encompassing the regulation of the work function of the perovskite film and effective passivation of the uncoordinated Pb2+and I−defects within the perovskites. Consequently, the introduction of AICA stabilizes the structure of the perovskites, leading to the formation of high-quality perovskite films and effectively inhibiting defect-induced nonradiative recombination. Owing to the incorporation of AICA, notable improvements in the photovoltaic performance of p-MPSCs are observed, with a considerable increase in PCE from 14.21% to 16.68% and a corresponding rise in VOCfrom 0.88 to 0.98 V.
قاعدة البيانات: Supplemental Index
الوصف
تدمد:20958226
21994501
DOI:10.1007/s40843-023-2645-4