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Zinc Oxide-Black Phosphorus Composites for Ultrasensitive Nitrogen Dioxide Sensing

Abstract

Multi-layer black phosphorus (m-BP) successfully incorporate in zinc oxide (ZnO) hollow spheres, developing the hetero-structured ZnO-BP composites. A study performed on its properties reveals that BP environmental stability could been significantly enhanced by the introduction of ZnO, and the sensor based on ZnO-BP composites exhibit high response, fast response behavior, outstanding selectivity, and ultralow detection limit of 1 ppb towards the NO2 gas molecules. The ultrasensitive sensing performance is suggested to arise from the large surface area, excellent carrier mobility, as well as enhanced charge transfer of ZnO-BP in presence of BP. Moreover, the mechanism of the NO2 sensing with ZnO-BP is confirmed by the calculations obtained from the first-principle studies.

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Publication details

The article was received on 08 Mar 2018, accepted on 15 May 2018 and first published on 16 May 2018


Article type: Communication
DOI: 10.1039/C8NH00052B
Citation: Nanoscale Horiz., 2018, Accepted Manuscript
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    Zinc Oxide-Black Phosphorus Composites for Ultrasensitive Nitrogen Dioxide Sensing

    Q. Li, Y. Cen, J. huang, X. Li, H. Zhang, Y. Geng, B. I. Yakobson, Y. Du and X. Tian, Nanoscale Horiz., 2018, Accepted Manuscript , DOI: 10.1039/C8NH00052B

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