UV Enhanced Field Emission Performance of Mg-Doped ZnO Nanorods

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 °C were structurally uniform and well oriented...

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Bibliographic Details
Published in:IEEE transactions on electron devices 2014-05, Vol.61 (5), p.1541-1545
Main Authors: Liu, Y. H., Sheng-Joue Young, Ji, L. W., Meen, T. H., Hsiao, C. H., Huang, C. S., Shoou-Jinn Chang
Format: Article
Language:English
Subjects:
Devices
Educational institutions
Field emission
Field emitters
Glass
hydrothermal method
Illumination
Lighting
Magnesium
Mg-doped ZnO
nanorod
Nanorods
Photonic band gap
Substrates
Wurtzite
Zinc oxide
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Summary: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 °C were structurally uniform and well oriented with pure wurtzite structure. Mg-ZnO nanorod exhibited turn-on fields was 2.27 V/μm, and field enhancement factors (β) was 2212. UV illumination of the Mg-ZnO nanorod reduced the turn-on electrical field from 2.27 to 1.97 V/μm and enhanced the β from 2212 and 4136.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2014.2312853