Korean Journal of Crystallography (한국결정학회지)

Korean Crystallographic Association (한국결정학회)
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The Optical Characteristics of CdS Thin Films and Powders

CdS 분말 및 박막의 광학적 특성

  • Published : 2008.06.30
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Abstract

In order to characterize the optical properties of CdS thin films and CdS powders, the following experiments were performed: CdS wurtzite thin films were made using 99.99% CdS (Aldrich) powder and the $AlO_x$ membranes in $7{\times}10^{-6}$ torr(here, the average vacuum coating speed is $1{\AA}/sec$.). The surface states of CdS nano-particles with dimensions of 3.87 nm were studied through the fluorescence spectroscopy. From the resulting spectra exhibited, we can see a sharp fluorescence at 451 nm arising from the excitons on the CdS thin films, compared with the 448nm peak of the CdS powders.

Keywords

References

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