ZnO nanostructures for organometallic halide perovskite solar cells

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 st...

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Main Authors Tam, Ho Won, Liu, Fangzhou, Wang, Yushu, Chen, Wei, Leung, Tik Lun, Djurišić, Aleksandra B, Ng, Alan Man Ching, Chan, Wai Kin, Tang, Jinyao
Format Conference Proceeding
LanguageEnglish
Published SPIE 23.02.2018
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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.
AbstractList 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.
Author Chen, Wei
Tam, Ho Won
Tang, Jinyao
Ng, Alan Man Ching
Chan, Wai Kin
Liu, Fangzhou
Wang, Yushu
Djurišić, Aleksandra B
Leung, Tik Lun
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DOI 10.1117/12.2291595
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Editor Teherani, Ferechteh H
Rogers, David J
Look, David C
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Conference Location: San Francisco, California, United States
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Snippet ZnO is considered a potential alternative of TiO2 for electron transport materials of perovskite solar cells due to its relatively high electron mobility and...
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Title ZnO nanostructures for organometallic halide perovskite solar cells
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