Comparative Study of Different Cadmium Salts on Nano-Structured CdS Thin Films Prepared by CBD

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Comparative studies about different cadmium salts were carried out by chemical bath deposition method. The CdS nanofilms that deposited with Cd (Ac)2 was smoother, thicker and higher transmittance without any pin hole and particles compared with the films deposited with CdSO4. In this paper, The band gap energy was shifted from 2.4 eV to 2.3 eV while the CdSO4 was instead with Cd (Ac)2. In addition, the craystalline of the films deposited with Cd (Ac)2 was also better than that with CdSO4. Poly-crystalline hexagonal structure CdS without any unwanted secondary phases was demonstrated by GI-XRD analyses. Applications of the CdS nanofilms deposited with Cd (Ac)2 was carryout. Combined our previous test results, the film that deposited on the CIGS abosorb layer was well covered which can demonstrated better for solar cell application.

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36-39

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August 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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