Optoelectronic properties of thermally evaporated zno films with nanowalls on glass substrates

Tse Pu Chen, Fei Yi Hung, Sheng Po Chang, Shoou Jinn Chang, Zhan Shuo Hu, Kuan Jen Chen

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Zinc oxide (ZnO) films with two-dimensional (2D) vertically aligned nanowalls, denoted by nanowalls-films, are successfully prepared on glass substrates at a low growth temperature of 450 °C without using metal catalysts. The morphology and optical properties of the nanowalls-film are characterized by scanning electron microscopy, X-ray diffraction analysis, transmission electron microscopy, energy dispersive X-ray spectroscopy, and photoluminescence measurement. The ZnO nanowalls-film show a strong UV emission and a preferred c-axis orientation with a hexagonal structure. The UV sensor measurement of the ZnO nanowalls-film shows a high sensitivity to UV light, rapid rise and decay times, and a good UV-to-visible rejection ratio.

Original languageEnglish
Article number045201
JournalApplied Physics Express
Volume6
Issue number4
DOIs
Publication statusPublished - 2013 Apr

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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