Synthesis and raman spectra of cupric oxide quantum dots
Xu, J.F. Ji, W. Shen, Z.X. Tang, S.H. Ye, X.R. Jia, D.Z. Xin, X.Q.
Ye, X.R.
Jia, D.Z.
Xin, X.Q.
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Abstract
We have synthesised CuO quantum dots by using a method of one-step solid state reaction under ambient conditions, and investigated them by X-ray diffraction (XRD), transmission electron microscopy (TEM), and Raman scattering technique. The XRD shows that the sample is composed of single phase CuO with a monoclinic structure. The particle size estimated from the x-ray diffraction peaks is about 12 nm, consistent with the TEM result. The Raman spectra show that there are three Raman peaks at 282, 332 and 618 cm-1, which are much broader and shifted several cm-1 to lower frequencies in comparison with those of bulk CuO crystal. The temperature dependence of the Raman spectra in the range 77-873 K is also presented. © 2000 Materials Research Society.
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Materials Research Society Symposium - Proceedings
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1999
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