UV detector from ZnO nanorods with electrodes resembling a wheatstone bridge pattern

Arun Vasudevan; Soyoun Jung; Taeksoo Ji

doi:10.1117/12.893973

23 September 2011 UV detector from ZnO nanorods with electrodes resembling a wheatstone bridge pattern

Arun Vasudevan, Soyoun Jung, Taeksoo Ji

Proceedings Volume 8102, Nanoengineering: Fabrication, Properties, Optics, and Devices VIII; 81020G (2011) https://doi.org/10.1117/12.893973
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

Abstract

Detectors currently used for UV detection are Si based and photomultiplier tubes, but these are bulky and less sensitive. ZnO based detector is an alternative to silicon and photomultiplier tubes due to its high sensitivity to UV light and can be fabricated cheaply and compactly. Here we attempt to increase the sensitivity of ZnO based detector by using electrode design that resembles a Wheatstone bridge and the detector has metal-semiconductor-metal structure. This new improved design enhances the collection of carriers and also miniaturization of the detector. The nanorods for the detector were grown by solution growth technique and the response of the detector on the length of the interdigitated fingers and spacing between the interdigitated fingers were also studied.49518

Citation Download Citation

Arun Vasudevan, Soyoun Jung, and Taeksoo Ji "UV detector from ZnO nanorods with electrodes resembling a wheatstone bridge pattern", Proc. SPIE 8102, Nanoengineering: Fabrication, Properties, Optics, and Devices VIII, 81020G (23 September 2011); https://doi.org/10.1117/12.893973

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