Journal
ACS NANO
Volume 10, Issue 3, Pages 3630-3636Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.5b08135
Keywords
NiOx; hole contact; flexible; perovskite solar cell
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Funding
- National Natural Science Foundation of China [51502239, 91323303]
- China Postdoctoral Science Foundation [2015M582659]
- Research Fund for the Doctoral Program of Higher Education of China [20120201130004]
- Science and Technology Developing Project of Shaanxi Province [2015KW-001]
- 111 Project of China [B14040]
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A solution-derived NiOx film was employed as the hole contact of a flexible organic inorganic hybrid perovskite solar cell. The NiOx film, which was spin coated from presynthesized NiOx 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 NiOx-based perovskite solar cell on an ITO-glass substrate, which is much higher than that of the perovskite solar cells using high temperature-derived NiOx film contacts. The low -temperature deposition process made the NiOx films suitable for flexible devices. NiOx-based flexible perovskite solar cells were fabricated on ITO-PEN substrates, and a preliminary PCE of 13.43% was achieved.
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