摘要
The world-record power conversion efficiency(PCE)of organometallic perovskite solar cells(PSCs)has rapidly increased to 25.2% within ten years due to the superb optoelectronic properties of the organometallic perovskite materials[1-4].However,the long-term stability issue remains a key obstacle for the commercialization of PSCs[5].There are several extrinsic and intrinsic factors known to directly influence the stability of PSCs.Extrinsic factors such as moisture and oxygen in the air can accelerate the degradation of PSCs,but such factors can be effectively eliminated by advanced encapsulation technologies[6,7].
有机-无机杂化钙钛矿太阳能电池自问世以来,因其光电转换效率迅速提升得到全球的广泛关注.目前,其光电转换效率已高达25.2%.为实现实际应用,提高其稳定性已成为该领域最为关键的问题.本文作者进行了室温磁控溅射ITO的技术研究,成功利用ITO代替钙钛矿太阳能电池的金属顶电极,其制备的半透明电池光电转换效率可达16.7%.最重要的是其在手套箱中储存2000小时以上,电池效率无任何衰减.此外,研究人员发现该半透明太阳能电池具有非常高的双面电池的应用前景,通过改变电池背电极后的反射介质可成功将其输出功率提高至20 m W/cm^2.最后文章指出目前室温下制备的ITO仍然存在透射率低的问题,随着该技术的进一步优化,不断提高其透过率,其双面光伏特性可得到大幅提高.届时,该类电池也将在光伏建筑一体化应用中崭露头角.
作者
Yuanhang Cheng
Chenchao Xie
Xixia Liu
Guangyao Zhu
Ho-Wa Li
Selvaraj Venkataraj
Zhi-Kuang Tan
Liming Ding
Armin Gerhard Aberle
Fen Lin
程远航;谢晨超;刘希夏;朱光耀;李皓华;Selvaraj Venkataraj;Zhi-Kuang Tan;丁黎明;Armin Gerhard Aberle;林棻(Singapore,National University of Singapore,Singapore 117574,Singapore;Department of Chemistry,National University of Singapore,Singapore 117543,Singapore;Department of Materials Science and Engineering,National University of Singapore,Singapore 117576,Singapore;Center for Excellence in Nanoscience(CAS),Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS),National Center for Nanoscience and Technology,Beijing 100190,China)
基金
funded by the National University of Singapore(NUS)and Singapore’s National Research Foundation(NRF)through the Singapore Economic Development Board(EDB)
the National Key Research and Development Program of China(2017YFA0206600)
the National Natural Science Foundation of China(51773045,21772030,51922032,21961160720)for financial support。
