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Large Scale Synthesis and Enhanced Field Emission Properties from Hybrid CuO/ZnO Nanorod

Title
Large Scale Synthesis and Enhanced Field Emission Properties from Hybrid CuO/ZnO Nanorod
Author
이휘건
Keywords
CuO Nanorod; ZnO Nano-Thin Film; Field Emission
Issue Date
2011-08
Publisher
Amer Scientific Publishers
Citation
Journal of Nanoscience and Nanotechnology, 2011, 11(8), P.7299-7302
Abstract
Upper-directionally grown nanorods were synthesized on a large scale by a simple method of direct heating of Cu foil in air. Hybrid CuO/ZnO nanorods were fabricated by ZnO thin film coating using magnetron sputtering. Field emission (FE) measurements of CuO and hybrid CuO/ZnO nanorod films show that they have turn-on field of 3.81 and 3.24 V/mu m and a current density of 0.39 and 1.1 mu A/cm(2) under an applied field of about 6.6 V/mu m, respectively. By comparing X-ray photoelectron spectroscopy analysis and the FE properties of two types of samples, we concluded that the narrowing of band gap due to the change of electron binding energy of hybrid CuO/ZnO nanorods effectively improved FE.
URI
http://www.ingentaconnect.com/content/asp/jnn/2011/00000011/00000008/art00120https://repository.hanyang.ac.kr/handle/20.500.11754/72897
ISSN
1533-4880
DOI
10.1166/jnn.2011.4788
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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