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Raman spectra of CuO nanocrystals
Author(s) -
Xu J. F.,
Ji W.,
Shen Z. X.,
Li W. S.,
Tang S. H.,
Ye X. R.,
Jia D. Z.,
Xin X. Q.
Publication year - 1999
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/(sici)1097-4555(199905)30:5<413::aid-jrs387>3.0.co;2-n
Subject(s) - raman spectroscopy , annealing (glass) , grain size , nanocrystal , excitation wavelength , analytical chemistry (journal) , materials science , spectral line , laser , excitation , wavelength , pellet , chemistry , nanotechnology , optics , optoelectronics , physics , electrical engineering , engineering , chromatography , astronomy , metallurgy , composite material
CuO nanoparticles were successfully prepared by a one‐step solid‐state reaction under ambient conditions. Three pellet samples with different grain sizes were obtained by annealing at high temperature. The room temperature Raman spectra of these samples show that as the grain size decreases, the Raman peaks shift to lower wavenumber and become broader owing to size effects. The dependences of the Raman spectra on the wavelength of the excitation laser and temperature were also investigated. Copyright © 1999 John Wiley & Sons, Ltd.