Electron field emission enhancement of hybrid Cu/CuO nanowires fabricated by rapid thermal reduction of CuO nanowires

Yen Ming Juan, Shoou Jinn Chang, Han Ting Hsueh, Sin Hui Wang, Tsung Chieh Cheng, Shih Wei Huang, Cheng Liang Hsu

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

CuO nanowires (NWs) were grown via the thermal oxidation of Cu film deposited on a CuO/glass template. The reduction of CuO NWs was conducted at 250, 260, 270, and 280 °C in H2 atmosphere. It was found that the surfaces of CuO NWs partially transformed into Cu via rapid thermal annealing (RTA) under H2 atmosphere, forming hybrid Cu/CuO NWs. The field-enhancement factors of pure CuO NWs and hybrid Cu/CuO NWs prepared at 250, 260, and 270 °C were 2624, 5702, 7897, and 79 580, respectively. The results also show that the hybrid Cu/CuO NWs efficiently reduce the turn-on field from 6.4 to 0.9 V μm-1.

Original languageEnglish
Pages (from-to)54220-54224
Number of pages5
JournalRSC Advances
Volume5
Issue number67
DOIs
Publication statusPublished - 2015 Jan 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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