Effect of Cu/In Ratio on Properties of CuInS2 Films Prepared by Ultrasonic Spray Pyrolysis Method

Abstract:

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CuInS2 thin films were prepared on heated glass substrates by ultrasonic spray pyrolysis method. Structure, surface morphology and properties of films with different Cu/In ratios have been investigated. X-ray diffraction (XRD) analysis demonstrated that as-prepared CuInS2 thin films with chalcopyrite structure have a preferential orientation along the (112) direction. SEM study shows films are relatively dense and smooth, but the much bigger grains and the large coherent agglomerates appear in films (Cu/In>1.25) due to the appearance of phase Cu2S. CuInS2 thin film (Cu/In=1.25) has a strong visible absorption and its energy band gap comes up to 1.45eV.

Info:

Periodical:

Advanced Materials Research (Volumes 199-200)

Edited by:

Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim

Pages:

1936-1939

DOI:

10.4028/www.scientific.net/AMR.199-200.1936

Citation:

X. Zhang et al., "Effect of Cu/In Ratio on Properties of CuInS2 Films Prepared by Ultrasonic Spray Pyrolysis Method", Advanced Materials Research, Vols. 199-200, pp. 1936-1939, 2011

Online since:

February 2011

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Price:

$35.00

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