High-Performance Upscaled Indium Tin Oxide-Free Organic Solar Cells with Visual Esthetics and Flexibility
High-Performance Upscaled Indium Tin Oxide-Free Organic Solar Cells with Visual Esthetics and Flexibility
复制标题
具有视觉美感和灵活性的高性能升级无氧化铟锡有机太阳能电池
DOI：
10.1002/solr.202100339
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发表时间：
2021
期刊：
影响因子：
7.9
通讯作者：
Chen Hongzheng
中科院分区：
文献类型：
--
作者：
Zhao Feng;Zuo Lijian;Li Yaokai;Zhan Lingling;Li Shuixing;Li Xin;Xia Ruoxi;Yip Hin-Lap;Chen Hongzheng
Organic solar cells (OSCs) show great promise for future applications due to their merits of low cost, flexibility, and vivid colors, etc. However, the “conventional” device architecture with a brittle and expensive glass/indium tin oxide (ITO) transparent electrode weakens these potential advantages and restricts it to small areas for high performance. Herein, a device architecture simultaneously combining the advantages of high performance, superior flexibility, diverse colors, and low‐cost upscaling production is developed. The device structure features a top‐illumination geometry with a thermally evaporated ultrathin Ag film as transparent electrode for ITO replacement. The formation of optical microcavity and high conductance of ultrathin Ag enables high performance for upscaled OSCs. Moreover, this device architecture further enables diverse colors via tuning the TeO2layer atop of the ultrathin Ag transparent electrode. This top‐illumination structure is more tolerant for substrates and enables wider flexible substrates. As a result, the flexible OSCs with upscaled areas of 1.05 cm2exhibit a best performance of 13.09% (certified 11.9%) with superior flexibility, diverse colors, representing one of the best ITO‐free upscaled flexible OSCs. This work provides a versatile device structure to highlight the merits of OSCs, and paves the way for the future commercialization and practical applications.
