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Article Dans Une Revue physica status solidi (a) Année : 2016

InGaN/GaN core/shell nanowires for visible to ultraviolet range photodetection

Résumé

We report on the fabrication and characterization of single nitride nanowire visible-to-ultraviolet p-n photodetec-tors. Nitride nanowires containing 30 InGaN/GaN radial quantum wells with 18% indium fraction were grown by catalyst-free metal-organic vapour phase epitaxy. Single nanowires were contacted using optical lithography. As expected for a radial p-n junction, the current-voltage (I-V) curves of single wire detectors show a rectifying behavior in the dark and a photocurrent under illumination. The detectors present a response in the visible to UV spectral range starting from 2.8 eV. The peak responsivity is 0.17 A/W at 3.36 eV. The on-off switching time under square light pulses is found to be below 0.1 sec.
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Dates et versions

hal-01390994 , version 1 (04-11-2016)

Identifiants

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Hezhi H Zhang, Agnès Messanvi, Christophe Durand, Joël Eymery, Pierre Lavenus, et al.. InGaN/GaN core/shell nanowires for visible to ultraviolet range photodetection. physica status solidi (a), 2016, 213 (4), pp.936-940. ⟨10.1002/pssa.201532573⟩. ⟨hal-01390994⟩
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