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Structural, optical, and electronic properties of colloidal CuO nanoparticles formed by using a colloid-thermal synthesis process
- Authors
- Son, Dong Ick; You, Chan Ho; Kim, Tae Whan
- Issue Date
- Aug-2009
- Publisher
- ELSEVIER
- Keywords
- Colloidal CuO nanoparticles; Structural properties; Optical properties; Electronic properties
- Citation
- APPLIED SURFACE SCIENCE, v.255, no.21, pp.8794 - 8797
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED SURFACE SCIENCE
- Volume
- 255
- Number
- 21
- Start Page
- 8794
- End Page
- 8797
- ISSN
- 0169-4332
- Abstract
- 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.
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