期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 48, 页码 24495-24503出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta08193a
关键词
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资金
- National Natural Science Foundation of China [51502239]
- 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]
- National Natural Science Foundation of China Major Research Plan on Nanomanufacturing [91323303]
- 111 Project of China [B14040]
A hysteresis-less inverted planar heterojunction perovskite solar cell with 14.42% power conversion efficiency (PCE) was successfully fabricated by employing a solution-derived NiOx film as the hole selective contact. Here, the non-stoichiometric transparent NiOx film is composed of a lot of small NiOx nanocrystals with a cubic crystal structure. Inverted planar heterojunction perovskite solar cells based on the as-prepared NiOx hole selective contacts show a much higher PCE and air storage stability than the control device fabricated from the PEDOT:PSS film as the hole selective contact, since NiOx has a better electron blocking property due to its high conduction band edge position. The thickness of the NiOx contact strongly influences the performance of the NiOx-based perovskite solar cells, which include the PCE, hysteresis behaviors and air storage stability due to the thickness-dependent morphology of the NiOx contact.
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