Highly Foldable and Efficient Paper-Based Perovskite Solar Cells
Highly Foldable and Efficient Paper-Based Perovskite Solar Cells
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高度可折叠且高效的纸基钙钛矿太阳能电池
DOI：
10.1002/solr.201800317
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发表时间：
2019-03-01
期刊：
影响因子：
7.9
通讯作者：
Song, Weijie
中科院分区：
文献类型：
--
作者：
Li, Hongjiang;Li, Xiaodong;Song, Weijie
可折叠纸基太阳能电池是可穿戴和便携式应用的有吸引力的电源。目前，低功率转换效率（PCE）和在不同折叠条件下的退化限制了纸基太阳能电池的实际应用。本文中，分别使用氧化物/Ag/氧化物（OMO）和钙钛矿作为电极和吸收体在玻璃纸上构造太阳能电池。玻璃纸上的钙钛矿太阳能电池（PSC）具有13.19%的PCE，是所有纸基太阳能电池中最高的。更重要的是，受益于与可折叠OMO电极组合的玻璃纸基底，纸上的PSC表现出50次单折叠和10次双折叠稳定性：它们在-180度和+180度单折叠50次循环后分别保留85.3%和84.1%的初始PCE;经过10次内、外双折叠循环后，它们分别保持初始PCE的67.2%和55.3%。此外，双折叠后的太阳能电池显示出严重的裂纹和分层，导致比单折叠更快的退化。玻璃纸上的高效、可折叠和轻质的PSC对于未来的自供电纸基电子应用是有希望的。
Foldable paper-based solar cells are attractive power sources for wearable and portable applications. Currently, low power conversion efficiency (PCE) and degradation under different folding conditions restrict practical applications of paper-based solar cells. Herein are constructed solar cells on cellophane paper using oxide/ultrathin Ag/oxide (OMO) and perovskite as electrodes and absorbers, respectively. The perovskite solar cell (PSC) on cellophane exhibits a PCE of 13.19%, the highest among all the paper-based solar cells. More importantly, beneficial from ultrathin cellophane substrates combined with foldable OMO electrodes, PSCs on paper exhibit 50 single folding and 10 dual folding stability: they preserve 85.3 and 84.1% of the initial PCE after -180 degrees and +180 degrees single folding for 50 cycles, respectively; and they remain 67.2 and 55.3% of the initial PCE after 10 inner and outer dual folding cycles, respectively. Furthermore, the solar cells after dual folding show serious cracks and delamination, leading to faster degradation than single folding. The highly efficient, foldable, and lightweight PSCs on cellophane are promising for future self-powered paper-based electronic applications.