Journal
IEEE TRANSACTIONS ON ELECTRON DEVICES
Volume 61, Issue 5, Pages 1541-1545Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TED.2014.2312853
Keywords
Field emitters; hydrothermal method; Mg-doped ZnO; nanorod
Funding
- National Science Council of Taiwan [NSC 102-2221-E-150-046, 101-2221-E-150-043]
- Common Laboratory for Micro/Nano Science and Technology, National Formosa University
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Vertical Mg-ZnO nanorods were synthesized on glass substrates using a low-temperature hydrothermal method. The field emission performance of Mg-ZnO nanorods was greatly enhanced by UV light illumination. It was found that the Mg-ZnO nanorods grown at 80 degrees C were structurally uniform and well oriented with pure wurtzite structure. Mg-ZnO nanorod exhibited turn-on fields was 2.27 V/mu m, and field enhancement factors (beta) was 2212. UV illumination of the Mg-ZnO nanorod reduced the turn-on electrical field from 2.27 to 1.97 V/mu m and enhanced the beta from 2212 and 4136.
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