材料科学
氧化铟锡
基质(水族馆)
能量转换效率
光电子学
图层(电子)
钙钛矿(结构)
柔性电子器件
数码产品
纳米技术
电气工程
化学工程
海洋学
地质学
工程类
作者
Xiaotian Hu,Zengqi Huang,Xue Zhou,Pengwei Li,Yang Wang,Zhandong Huang,Meng Su,Wanjie Ren,Fengyu Li,Mingzhu Li,Yiwang Chen,Yanlin Song
标识
DOI:10.1002/adma.201703236
摘要
Abstract Dramatic advances in perovskite solar cells (PSCs) and the blossoming of wearable electronics have triggered tremendous demands for flexible solar‐power sources. However, the fracturing of functional crystalline films and transmittance wastage from flexible substrates are critical challenges to approaching the high‐performance PSCs with flexural endurance. In this work, a nanocellular scaffold is introduced to architect a mechanics buffer layer and optics resonant cavity. The nanocellular scaffold releases mechanical stresses during flexural experiences and significantly improves the crystalline quality of the perovskite films. The nanocellular optics resonant cavity optimizes light harvesting and charge transportation of devices. More importantly, these flexible PSCs, which demonstrate excellent performance and mechanical stability, are practically fabricated in modules as a wearable solar‐power source. A power conversion efficiency of 12.32% for a flexible large‐scale device (polyethylene terephthalate substrate, indium tin oxide‐free, 1.01 cm 2 ) is achieved. This ingenious flexible structure will enable a new approach for development of wearable electronics.
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