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Self-powered diamond ultraviolet photodetector with a transparent Ag nanowire electrode.

08:00 EDT 12th April 2019 | BioPortfolio

Summary of "Self-powered diamond ultraviolet photodetector with a transparent Ag nanowire electrode."

A novel diamond UV photodetector with a transparent Ag nanowire (NW) electrode was fabricated. Transparent Ag NW network was spin-coated on single crystalline diamond to form Schottky contact, which had a barrier height of about 1.37 eV obtained by XPS measurements. Meanwhile, multilayered metals of Au/Pt/Ti were evaporated on the diamond sample to form ohmic contacts. Compared to the Au/Pt/Ti-Au/Pt/Ti diamond photodetector, the Au/Pt/Ti-Ag NW diamond photodetector exhibited relatively high responsivity under 220 nm (18 mA W-1), high linear dynamic range (41 dB), and short response time (0.12 s for rise time, 0.56 s for decay time). In particular, the Au/Pt/Ti-Ag NW diamond photodetector showed high photocurrent of about 200 pA at zero-bias, indicating the potential of making self-powered devices.

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Name: Nanotechnology
ISSN: 1361-6528
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