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反式(p-i-n)钙钛矿太阳能电池(PSCs)因其具有转化效率高、稳定性好等优点受到越来越多的关注。制约反式钙钛矿电池效率提升的主要因素是钙钛矿层和电荷传输层之间的界面缺陷。因此，本文基于1,3-二氨基丙烷二氢碘(PDADI)双修饰策略钝化钙钛矿薄膜与电荷传输层界面缺陷，提高了钙钛矿薄膜成膜质量，抑制了钙钛矿薄膜与电荷传输层之间的非辐射复合，制备了转化效率为23.19%的反式钙钛矿太阳能电池，为制备高效反式钙钛矿太阳能电池提供了一种有效策略。
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关键词:
- 反式 /
- 钙钛矿太阳能电池 /
- 缺陷钝化 /
- 1，3-二氨基丙烷二氢碘
Inverted (p-i-n) perovskite solar cells (PSCs) are receiving increasing attention due to their high conversion efficiency and good stability. The main factor restricting the efficiency improvement of inverted perovskite cells is the interface defects between the perovskite layer and the charge transport layers. Therefore, the dual modification strategy of 1,3-diaminopropane dihydroiodide (PDADI) passivates the interface defects between perovskite films and charge transport layers, improves the quality of perovskite film formation, suppresses non radiative recombination between perovskite films and charge transport layers as well as improved charge carrier transport, and results in a conversion efficiency of 23.19%. Furthermore, the unencapsulated PSCs with PDADI dual modification also exhibit good storage stability, after being placed at a temperature of 25 ℃ and a humidity of less than 20% for 600 hours, the efficiency remained at 96% of the initial efficiency. Therefore, PDADI dual modification providing an effective strategy for the fabrication of high-efficiency and stable inverted perovskite solar cells.-
Keywords:
- Inverted /
- Perovskite solar cells /
- Defects passivation /
- PDADI
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