ZnO nanostructures for organometallic halide perovskite solar cells

Ho Won Tam; Fangzhou Liu; Yushu Wang; Wei Chen; Tik Lun Leung; Aleksandra B. Djurišić; Alan Man Ching Ng; Wai Kin Chan; Jinyao Tang

doi:10.1117/12.2291595

23 February 2018 ZnO nanostructures for organometallic halide perovskite solar cells

Ho Won Tam, Fangzhou Liu, Yushu Wang, Wei Chen, Tik Lun Leung, Aleksandra B. Djurišić, Alan Man Ching Ng, Wai Kin Chan, Jinyao Tang

Author Affiliations +

Proceedings Volume 10533, Oxide-based Materials and Devices IX; 105332Q (2018) https://doi.org/10.1117/12.2291595
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

ZnO is considered a potential alternative of TiO₂ for electron transport materials of perovskite solar cells due to its relatively high electron mobility and the ease of low temperature solution-processing. Nevertheless, ZnO-based perovskite devices usually exhibit inferior device performance and stability compared to TiO₂ based devices due to the defect states at ZnO/perovskite interface. In this study, an ultrathin TiO₂ layer by ALD is applied to ZnO nanostructures, and its effect on device performance is investigated. The results indicate that TiO₂ ultrathin layer can effectively passivate the surface of ZnO nanostructures, resulting in enhanced device performance.

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Ho Won Tam, Fangzhou Liu, Yushu Wang, Wei Chen, Tik Lun Leung, Aleksandra B. Djurišić, Alan Man Ching Ng, Wai Kin Chan, and Jinyao Tang "ZnO nanostructures for organometallic halide perovskite solar cells", Proc. SPIE 10533, Oxide-based Materials and Devices IX, 105332Q (23 February 2018); https://doi.org/10.1117/12.2291595

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