标题: ZnO-Coated Carbon Nanotubes: Inter-Diffusion of Carboxyl Groups and Enhanced Photocurrent Generation
作者: Hung, Chia-I
Wen, Hua-Chiang
Lai, Yao-Cheng
Chang, Shih-Hsin
Chou, Wu-Ching
Hsu, Wen-Kuang
电子物理学系
Department of Electrophysics
关键字: carbon nanotubes;defects;nanostructures;photocurrent;zinc oxide
公开日期: 16-三月-2015
摘要: ZnO is a defect-governed oxide and emits light at both visible and UV regimes. This work employs atomic layer deposition to produce oxide particles on oxygenated carbon nanotubes, and the composites only show emission profiles at short wavelengths. The quenching of defect-related emissions at long wavelengths is verified, owing to carboxyl diffusion into oxygen vacancies, and doping is supported by ZnCO3 formation in oxide lattice. Fully coated tubes display an increased photocurrent and the quantum efficiency increases by 22% relative to the bare nanotubes.
URI: http://dx.doi.org/10.1002/cphc.201402736
http://hdl.handle.net/11536/124504
ISSN: 1439-4235
DOI: 10.1002/cphc.201402736
期刊: CHEMPHYSCHEM
Volume: 16
起始页: 812
结束页: 816
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