CuO nanowire-based humidity sensor

Sheng Bo Wang, Chih Hung Hsiao, Shoou Jinn Chang, Kin Tak Lam, Kuo Hsun Wen, Sheng Joue Young, Shang Chao Hung, Bohr Ran Huang

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)


The authors report the growth of CuO nanowires on an oxidized Cu wire and the fabrication of a CuO nanowire humidity sensor. It was found that we could transform a Cu wire into CuO/Cu 2O/Cu core-shell tri-layers covered with high density CuO nanowires by thermal annealing. It was also found that steady state currents of the sensor were about 2.44, 2.32, 2.23, and 2.15 μA, respectively, when measured with 20, 40, 60, and 80% relative humidity. Furthermore, it was found that sensing property of the fabricated device was stable and reproducible.

Original languageEnglish
Article number6107512
Pages (from-to)1884-1888
Number of pages5
JournalIEEE Sensors Journal
Issue number6
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electrical and Electronic Engineering


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