News Column

Findings from Quaid-I-Azam University in the Area of Optoelectronics Described

June 4, 2014

By a News Reporter-Staff News Editor at Electronics Newsweekly -- Data detailed on Optoelectronics have been presented. According to news originating from Islamabad, Pakistan, by VerticalNews correspondents, research stated, "Nanometer thin CdTe films were deposited on BK7 glass substrates using pulsed laser deposition technique in vacuum of 4.0 x 10(-6) mbar. The as grown films were then annealed in air at different temperatures."

Our news journalists obtained a quote from the research from Quaid-I-Azam University, "These films were characterized by X-ray diffraction, optical and atomic force microscopy techniques for phase identification, structure and morphology. The optical properties of the films were measured using transmission and spectroscopic ellipsometry measurements. The chemical composition, thickness and interface of the substrate and films were studied by Rutherford backscattering spectroscopy. CdTe thin films prepared by this process are found to have single phase with cubic zinc blende structure. The growth occurred in the (111) preferential direction of the cubic structure."

According to the news editors, the research concluded: "The optimized growth for crystalline and stoichiometric films possessing good structural and optical properties were achieved after annealing in air at 300 degrees C. In the present study efforts have been made to correlate the optical properties of the CdTe thin films with the corresponding microstructural features associated with these films."

For more information on this research see: Structural and optical studies of laser ablated nanostructured CdTe thin films. Journal of Optoelectronics and Advanced Materials, 2014;16(3-4):351-359. Journal of Optoelectronics and Advanced Materials can be contacted at: Natl Inst Optoelectronics, 1 Atomistilor St, PO Box Mg-5, Bucharest-Magurele 76900, Romania.

The news correspondents report that additional information may be obtained from M.N. Khan, Quaid I Azam Univ, Natl Center Phys, Expt Phys Labs, Islamabad 45320, Pakistan. Additional authors for this research include N. Mahmood and A.A. Khurram.

Keywords for this news article include: Asia, Pakistan, Islamabad, Optoelectronics

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Source: Electronics Newsweekly

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