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Oxygen doping in nickel oxide for high efficient planar perovskite solar cells

Abstract

Currently the performance of inverted perovskite solar cells is still lower than normal structured devices, due to their imperfect band alignment between perovskite and hole transport layer (NiO). Herein, we found that the presence of oxygen during film preparation could lower the Fermi level of NiO and decrease the energy mismatch between perovskite and NiO. The decreased mismatch benefited Voc of the devices as well as the charge transfer between NiO and perovskite. In addition, the utilization of Cs-MA-FA mixed ions-based perovskite as absorbers could increase the light response range and improve the thermal and moisture stability of perovskite solar cells. At last, we achieved a stable performance output of 19.2% for inverted planar perovskite solar cells without any hysteresis.

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Publication details

The article was received on 05 Jan 2018, accepted on 03 Feb 2018 and first published on 05 Feb 2018


Article type: Paper
DOI: 10.1039/C8TA00161H
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Oxygen doping in nickel oxide for high efficient planar perovskite solar cells

    G. Niu, S. Wang, J. Li, W. Li and L. Wang, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA00161H

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