Highly Efficient Flexible Perovskite Solar Cells Using Solution-Derived NiOx Hole Contacts

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• 作者：Xingtian Yin ; Peng Chen ; Meidan Que ; Yonglei Xing ; Wenxiu Que ; Chunming Niu ; Jinyou Shao
• 刊名：ACS Nano
• 出版年：2016
• 出版时间：March 22, 2016
• 年：2016
• 卷：10
• 期：3
• 页码：3630-3636
• 全文大小：442K
• ISSN：1936-086X

文摘

A solution-derived NiO_x film was employed as the hole contact of a flexible organic–inorganic hybrid perovskite solar cell. The NiO_x film, which was spin coated from presynthesized NiO_x nanoparticles solution, can extract holes and block electrons efficiently, without any other post-treatments. An optimal power conversion efficiency (PCE) of 16.47% was demonstrated in the NiO_x-based perovskite solar cell on an ITO-glass substrate, which is much higher than that of the perovskite solar cells using high temperature-derived NiO_x film contacts. The low-temperature deposition process made the NiO_x films suitable for flexible devices. NiO_x-based flexible perovskite solar cells were fabricated on ITO-PEN substrates, and a preliminary PCE of 13.43% was achieved.