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Polarized Molecule 4-(Aminomethyl) Benzonitrile Hydrochloride for Efficient and Stable Perovskite Solar Cells
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2022-07-18 , DOI: 10.1021/acsami.2c09058 Xia Chen 1 , Jihuai Wu 1 , Guodong Li 1 , Yitian Du 1 , Qi Chen 1 , Chunyan Deng 1 , Yuan Xu 1 , Sijia Zhu 1 , Fangfang Cai 1 , Juanmei Liu 1 , Yuelin Wei 1 , Yunfang Huang 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2022-07-18 , DOI: 10.1021/acsami.2c09058 Xia Chen 1 , Jihuai Wu 1 , Guodong Li 1 , Yitian Du 1 , Qi Chen 1 , Chunyan Deng 1 , Yuan Xu 1 , Sijia Zhu 1 , Fangfang Cai 1 , Juanmei Liu 1 , Yuelin Wei 1 , Yunfang Huang 1
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The rapid development of perovskite solar cells (PSCs) makes it one of the most competitive photovoltaic devices in the field of new energy. However, the suboptimal performance and poor stability caused by numerous defects are still the main factors limiting the development of PSCs. Herein, a polarized molecule additive of 4-(aminomethyl) benzonitrile hydrochloride (AMBNCl) is introduced into perovskite. Owing to its special polar electron density distribution, −C≡N group, −NH3+ terminal, and Cl– ions, the modification of AMBNCl can improve the quality of perovskite crystal growth, passivate the defects of Pb2+, adjust the energy level array between the perovskite layer and hole-transport layer, and alleviate the carrier nonradiative recombination. As a result, the AMBNCl-modified device achieves a champion efficiency of 23.52%. The unpacked device still maintained 91.2% of its original efficiency after storing in an air environment (RH ∼40%, 25 °C) for 50 days.
中文翻译：
用于高效稳定钙钛矿太阳能电池的偏振分子4-(氨甲基)苯甲腈盐酸盐
钙钛矿太阳能电池（PSC）的快速发展使其成为新能源领域最具竞争力的光伏器件之一。然而，众多缺陷导致的性能欠佳和稳定性差仍然是限制PSC发展的主要因素。在此，将4-(氨基甲基)苯甲腈盐酸盐(AMBNCl)的极化分子添加剂引入到钙钛矿中。由于其特殊的极性电子密度分布、-CeqN基团、-NH 3 +端基和Cl -离子，AMBNCl的修饰可以提高钙钛矿晶体生长质量，钝化Pb 2+缺陷，调节能量钙钛矿层和空穴传输层之间的水平阵列，并减轻载流子非辐射复合。结果，AMBNCl 修改后的器件实现了 23.52% 的冠军效率。未包装的器件在空气环境（RH ∼40%，25°C）中存放 50 天后，仍保持其原始效率的 91.2%。
更新日期：2022-07-18
中文翻译：
用于高效稳定钙钛矿太阳能电池的偏振分子4-(氨甲基)苯甲腈盐酸盐
钙钛矿太阳能电池（PSC）的快速发展使其成为新能源领域最具竞争力的光伏器件之一。然而，众多缺陷导致的性能欠佳和稳定性差仍然是限制PSC发展的主要因素。在此，将4-(氨基甲基)苯甲腈盐酸盐(AMBNCl)的极化分子添加剂引入到钙钛矿中。由于其特殊的极性电子密度分布、-CeqN基团、-NH 3 +端基和Cl -离子，AMBNCl的修饰可以提高钙钛矿晶体生长质量，钝化Pb 2+缺陷，调节能量钙钛矿层和空穴传输层之间的水平阵列，并减轻载流子非辐射复合。结果，AMBNCl 修改后的器件实现了 23.52% 的冠军效率。未包装的器件在空气环境（RH ∼40%，25°C）中存放 50 天后，仍保持其原始效率的 91.2%。
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