Single CdTe microwire photodetectors grown by close-spaced sublimation method | Zendy

Gwangseok Yang | Zendy; Byung-Jae Kim | Zendy; DongHwan Kim | Zendy; Jihyun Kim | Zendy

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Single CdTe microwire photodetectors grown by close-spaced sublimation method

Author(s) -

Gwangseok Yang,

Byung-Jae Kim,

DongHwan Kim,

Jihyun Kim

Publication year - 2014

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.018843

Subject(s) - photodetector , sublimation (psychology) , materials science , cadmium telluride photovoltaics , optoelectronics , ultraviolet , semiconductor , optics , physics , psychology , psychotherapist

We demonstrate single CdTe microwire field-effect transistors (FETs) that are highly sensitive to ultraviolet (UV) light. Dense CdTe microwires were catalytically grown using a close-spaced sublimation system. Structural, morphological and transport properties in conjunction with the optoelectronic properties were systemically investigated. CdTe microwire FETs exhibited p-type behaviors with field-effect mobilities up to 1.1 × 10(-3) cm2 V(-1) s(-1). Optoelectronic properties of our CdTe microwire FETs were studied under dark and UV-illumination conditions, where photoresponse was highly dependent on the back-gate bias conditions. Our CdTe microwire FET-based photodetectors are promising for high-performance micro-optoelectronic applications.

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