The optical property of CPD prepared CdS films

Deokjoon Cha; Huang Ning-kang; Summi Kim

doi:10.1007/BF02835046

Journal of Wuhan University of Technology Materials Science Edition ›› 2004, Vol. 19 ›› Issue (3) : 1 -3. DOI: 10.1007/BF02835046

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The optical property of CPD prepared CdS films

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Abstract

CdS films were prepared with chemical pyrolysis deposition (CPD) at 450°C during film grouth, and these CdS films were also annealed at different temperature from 200–500°C. The optical property of the CdS films before and after annealing was investigated at different measuring temperature from 10 K to 300 K. Optical absorption spectra show that the absorption edge is towards the shorter wavelengths, and the energy band gaps deduced from the plots of (α·hν)² vs. hv are increased when the measuring temperature is decreased. The optical behaviors of the CdS films annealed at a certain temperature seem to have the similar tendency at different measuring temperature. Based on dE_ex/dT curve dependent on annealing temperature, some phenomena related microstructure in CdS films could be found.

Keywords

chemical pyrolysis deposition / CdS films / optical property

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Deokjoon Cha, Huang Ning-kang, Summi Kim. The optical property of CPD prepared CdS films. Journal of Wuhan University of Technology Materials Science Edition, 2004, 19(3): 1-3 DOI:10.1007/BF02835046

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