P-type mesoscopic nickel oxide/organometallic perovskite heterojunction solar cells

Kuo Chin Wang, Jun Yuan Jeng, Po Shen Shen, Yu Cheng Chang, Eric Wei Guang Diau, Cheng Hung Tsai, Tzu Yang Chao, Hsu Cheng Hsu, Pei Ying Lin, Peter Chen, Tzung Fang Guo, Ten Chin Wen

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388 Citations (Scopus)


In this article, we present a new paradigm for organometallic hybrid perovskite solar cell using NiO inorganic metal oxide nanocrystalline as p-type electrode material and realized the first mesoscopic NiO/perovskite/[6,6]-phenyl C61-butyric acid methyl ester (PC 61 BM) heterojunction photovoltaic device. The photo-induced transient absorption spectroscopy results verified that the architecture is an effective p-type sensitized junction, which is the first inorganic p-type, metal oxide contact material for perovskite-based solar cell. Power conversion efficiency of 9.51% was achieved under AM 1.5 G illumination, which significantly surpassed the reported conventional p-type dye-sensitized solar cells. The replacement of the organic hole transport materials by a p-type metal oxide has the advantages to provide robust device architecture for further development of all-inorganic perovskite-based thin-film solar cells and tandem photovoltaics.

Original languageEnglish
Article number4756
JournalScientific reports
Publication statusPublished - 2014 Apr 23

All Science Journal Classification (ASJC) codes

  • General


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