Designed Additive to Regulated Crystallization for High Performance Perovskite Solar Cell
Yang CaoLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaNan YanLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaMingzi WangSchool of Physics Northwest University Xi'an 710069 P. R. ChinaDanyang QiLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaJiafan ZhangLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaXin ChenLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaRu QinLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaFengwei XiaoLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaGuangtao ZhaoLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaYucheng LiuLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaXuediao CaiLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaKui ZhaoLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaShengzhong LiuCenter of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences Beijing 100049 ChinaJiangshan FengLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi ChinaJiangshan FengLaboratory of Applied Surface and Colloid Chemistry, Ministry of Education; School of Materials Science and Engineering; Shaanxi Key Laboratory for Advanced Energy Devices; Shaanxi Engineering Lab for Advanced Energy Technology; Institute for Advanced Energy Materials Shaanxi Normal University Xi'an 710119, Shaanxi China
2024en
ABI
Аннотация
Abstract It is a crucial role for enhancing the power conversion efficiency (PCE) of perovskite solar cells (PSCs) to prepare high‐quality perovskite films, which can be achieved by delaying the crystallization of perovskite film. Hence, we designed difluoroacetic anhydride (DFA) as an additive to regulating crystallization process thus reducing defect formation during perovskite film formation. It was found DFA reacts with DMSO by forming two molecules, difluoroacetate thioether ester (DTE) and difluoroacetic acid (DA). The strong bonding DTE ⋅ PbI 2 and DA ⋅ PbI 2 retard perovskite crystallization process for high‐quality film formation, which was monitored through in situ UV/Vis and PL tests. By using DFA additives, we prepared perovskite films with high‐quality and low defects. Finally, a champion PCE of 25.28 % was achieved with excellent environmental stability, which retained 95.75 % of the initial PCE after 1152 h at 25 °C under 25 % RH.
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