Structural, optical, and electronic properties of colloidal CuO nanoparticles formed by using a colloid-thermal synthesis process

被引:119
作者
Son, Dong Ick [2 ]
You, Chan Ho [1 ]
Kim, Tae Whan [1 ,2 ]
机构
[1] Hanyang Univ, Div Elect & Comp Engn, Seoul 133791, South Korea
[2] Hanyang Univ, Dept Informat Display Engn, Seoul 133791, South Korea
关键词
Colloidal CuO nanoparticles; Structural properties; Optical properties; Electronic properties; OXIDATION; OXIDE; DECOMPOSITION; CRYSTALS; SURFACE; GROWTH;
D O I
10.1016/j.apsusc.2009.06.056
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Colloidal cupric oxide (CuO) nanoparticles were formed by using a colloid-thermal synthesis process. Xray diffraction patterns, transmission electron microscopy (TEM) images, high-resolution TEM images, and X-ray energy dispersive spectrometry profiles showed that the colloidal CuO nanoparticles were formed. The optical band-gap energy of CuO nanoparticles at 300 K, as determined from the absorbance spectrum, was 3.63 eV. A photoluminescence spectrum at 300 K showed that a dominant emission peak appeared at the blue region. X-ray photoelectron spectroscopy profiles showed that the O 1s and the Cu 2p peaks corresponding to the CuO nanoparticles were observed. (C) 2009 Published by Elsevier B.V.
引用
收藏
页码:8794 / 8797
页数:4
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