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Full-solution processed all-nanowires flexible and transparent ultraviolet photodetectors

Abstract

Sandwich metal-semiconductor-metal (MSM) structured ultraviolet (UV) photodetectors have attracted much attention in wearable and implantable electronics due to their large UV adsorption area and high compatibility to large-scale production. However, there is a lack of effective approach to fabricate high transparent and flexible sandwich MSM structured device. In this work, we develop a full-solution process to fabricate flexible and transparent sandwich MSM structured device based on vertically aligned zinc oxide nanowires (ZnO NW) arrays. To achieve high flexibility and transparency, silver nanowires (Ag NW) networks were introduced as both bottom and top electrodes, and especially as substrate for vertically aligned ZnO NW arrays growth. Such a Ag NW/ZnO NW/Ag NW sandwich MSM structured device shows a high transparency of 75.0% and excellent mechanical stability. This UV photodetectors exhibits a low operation voltage of 0.5 V, a high photocurrent/dark current ratio of 9756, a fast photoresponse properties with rising time of 1.83 s and decay time of 1.75 s, demonstrating great potential for low cost and large area wearable electronics application.

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Publication details

The article was received on 13 Aug 2018, accepted on 10 Oct 2018 and first published on 13 Oct 2018


Article type: Paper
DOI: 10.1039/C8TC04044C
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
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    Full-solution processed all-nanowires flexible and transparent ultraviolet photodetectors

    Y. Li, Y. Li, J. Chen, Z. Sun, Z. li, X. Han, P. Li, X. Lin, R. Liu, Y. Ma and W. huang, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C8TC04044C

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