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A flexible GaN nanowire array-based Schottky-type visible light sensor with high sensitivity and responsivity is fabricated by transferring GaN nanowire arrays from a SiO2/Si substrate to a transparent and flexible polyethylene terephthalate substrate. The external strains/forces can improve the photoresponse of the flexible light sensor by up to 1100% via the piezo-phototronic effect.
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Shi et al. (2015) studied this question.
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