无机材料学报2024，Vol.39Issue(5)：477-484,中插6-中插7,10.DOI:10.15541/jim20230532
有机-无机共添加增强柔性钙钛矿太阳能电池机械弯曲及环境稳定性能
Organic-inorganic Co-addition to Improve Mechanical Bending and Environmental Stability of Flexible Perovskite Solar Cells
摘要
Abstract
Recently,perovskite solar cells have developed marvelously of which power conversion efficiency(PCE)achieved 26.1％,but the mechanical bending and environmental stability of flexible perovskite solar cells(F-PSCs)have remained major obstacles to their commercialization.In this study,the quality and crystallization of perovskite thin films were enhanced by adding agarose(AG).The interaction mechanism,PCE,mechanical bending and environmental stability of the assembled F-PSCs were investigated.It was found that the perovskite films modified by the optimal concentration of AG(3 mmol/L)exhibited denser and smoother morphology,higher crystallinity and absorbance,the lowest defect state density,and lower charge transfer resistance of 2191 Ω.Based on the optimal photoelectric properties,PCE increased from 15.17％to 17.30％.TiO2 nanoparticles(0.75 mmol/L)were further introduced to form a synergistic interaction with AG(3 mmol/L),which provided a rigid backbone structure,and thus enhanced the mechanical and environmental stability of perovskite layers.After 1500 cycles of bending(3 mm in radius),the AG/TiO2 co-modified F-PSCs maintained 84.73％of initial PCE,much higher than the blank device(9.32％).After 49 d in the air,the optimal F-PSCs still maintained 83.27％of initial PCE,superior than the blank device(62.21％).This work provides possibility for preparing highly efficient and stable F-PSCs.关键词
柔性钙钛矿太阳能电池/添加剂工程/弯曲稳定性/环境稳定性Key words
flexible perovskite solar cell/additive engineering/bending stability/environmental stability分类
化学化工引用本文复制引用
陈甜,罗媛,朱刘,郭学益,杨英..有机-无机共添加增强柔性钙钛矿太阳能电池机械弯曲及环境稳定性能[J].无机材料学报,2024,39(5):477-484,中插6-中插7,10.基金项目
国家重点研发计划项目(2023YFC3906103) （2023YFC3906103）
国家自然科学基金(61774169) （61774169）
湖南省自然科学基金-面上项目(2022JJ30757) （2022JJ30757）
广东省科技计划(2018B030323010) （2018B030323010）
清远市创新创业科研团队项目(2018001)National Key R&D Program of China(2023YFC3906103) （2018001）
National Natural Science Foundation of China(61774169) （61774169）
Natural Science Foundation of Hunan Province(2022JJ30757) （2022JJ30757）
Science and Technology Program of Guangdong Province(2018B030323010) （2018B030323010）
Qingyuan Innovation and Entrepreneurship Research Team Project(2018001) （2018001）
