Crabwise ZnO nanowire UV photodetector prepared on ZnO:Ga/glass template

T. J. Hsueh, C. L. Hsu, S. J. Chang, Y. R. Lin, S. P. Chang, Y. Z. Chiou, T. S. Lin, I. C. Chen

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11 Citations (Scopus)

Abstract

Vertical well-aligned and crabwise ZnO nanowires were prepared on patterned ZnO:Ga/glass substrates by reactive evaporation method under different growth conditions. The average length and diameter of vertical well-aligned ZnO nanowires were around 1 um and 50-100 nm, respectively. In contrast, the average length and diameter of crabwise ZnO nanowires were around S um and 30 nm, respectively. Upon illumination with UV light (λ=362 nm), it was found that measured responsivities were 0.015 and 0.03 A/W for the crabwise ZnO nanowire photodetector biased at 10 and 15 V, respectively. Furthermore, a rejection ratio of approximately 10 was obtained for the crabwise ZnO nanowire photodetector with an applied bias of 10 V.

Original languageEnglish
Pages (from-to)595-599
Number of pages5
JournalIEEE Transactions on Nanotechnology
Volume6
Issue number6
DOIs
Publication statusPublished - 2007 Nov

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

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