Enhanced Field Emission Properties of Ag Nanoparticle-Decorated ZnO Nanorods Under Ultraviolet Illumination

In this paper, pure ZnO and Ag nanoparticle (NP)-decorated ZnO nanorods (NRs) were successfully synthesized via a low-temperature hydrothermal method. The as-prepared samples were characterized through high-resolution transmission electron microscopy and selected-area electron diffractometry. The en...

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Bibliographic Details
Published in:IEEE transactions on electron devices 2015-07, Vol.62 (7), p.2300-2305
Main Authors: Chih-Chiang Yang, Yan-Kuin Su, Ming-Yueh Chuang, Hsin-Chieh Yu, Chih-Hung Hsiao
Format: Article
Language:English
Subjects:
Ag NP-decorated ZnO nanorods (NRs)
field emission (FE)
hydrothermal
II-VI semiconductor materials
Iron
Lighting
Nanowires
Substrates
Zinc oxide
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Summary:In this paper, pure ZnO and Ag nanoparticle (NP)-decorated ZnO nanorods (NRs) were successfully synthesized via a low-temperature hydrothermal method. The as-prepared samples were characterized through high-resolution transmission electron microscopy and selected-area electron diffractometry. The enhanced field emission (FE) behavior of the Ag NP-decorated ZnO NRs along the [0002] crystal c-axis and their single-crystalline hexagonal structures were characterized with surface-protruding Ag NPs. The resulting FE in the dark and under ultraviolet illumination had low turn-ON electric fields of 3.93 and 2.04 V · μm -2 , whereas the enhanced field enhancement factors were 1593 and 57872, respectively.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2015.2434886