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New Optical Research Study Findings Have Been Reported by Investigators at COMSATS Institute of Information Technology (CdZnS thin films sublimated...

July 7, 2014



New Optical Research Study Findings Have Been Reported by Investigators at COMSATS Institute of Information Technology (CdZnS thin films sublimated by closed space using mechanical mixing: A new approach)

By a News Reporter-Staff News Editor at Clinical Trials Week -- Data detailed on Optical Research have been presented. According to news reporting originating from Islamabad, Pakistan, by NewsRx correspondents, research stated, "Cadmium sulfide (CdS) is a prominent material for its tunable band gap used as a window layer in II-VI semiconductor solar cells. The light trapping capability of window layer is one of the powerful tools to enhance the efficiency of the cell."

Our news editors obtained a quote from the research from the COMSATS Institute of Information Technology, "CdS and zinc (Zn) powders were mixed mechanically with different weight percents to make CdZnS (CZS) powder. CZS was deposited onto an ultrasonically cleaned glass substrate using close spaced sublimation (CSS) technique. CZS as-deposited thin films were characterized for structural, surface morphology with energy dispersive X-rays (EDX) and optical properties for the use of window layer in CdS/CdTe based solar cells. The different Zn concentrations in CZS played a vital role on crystallite size in structural analysis and optical properties e.g. transmission, absorption coefficient and energy band gap, etc. The crystallite size of as-deposited CZS thin films were increased as Zn concentration was increased up to certain value. The energy band gap varies from 2.42 eV to 2.57 eV for as-deposited CZS thin films with increasing Zn concentrations and surface morphology changes also. These changes were occurred due to zinc diffusion in CdS thin films. An angle resolved transmission data was taken to check the behavior of CdS and CZS thin film at different angles."

According to the news editors, the research concluded: "A comparative study was carried out between CdS thin films and CZS thin films for the use of good window layer material."

For more information on this research see: CdZnS thin films sublimated by closed space using mechanical mixing: A new approach. Optical Materials, 2014;36(8):1449-1453. Optical Materials can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Optical Materials - www.elsevier.com/wps/product/cws_home/522512)

The news editors report that additional information may be obtained by contacting W. Mahmood, COMSATS Inst Informat Technol CIIT, Dept. of Phys, Thin Films Technol TFT Res Lab, Islamabad 46000, Pakistan (see also Optical Research).

Keywords for this news article include: Asia, Pakistan, Islamabad, Optical Research

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Clinical Trials Week


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