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ARTICLE

Enhancement efficiency of cadmium selenium solar cell by doping within silver

M. H. Mustafa, H. M. Ali^*, G. S. Ahmed, B. H. Hussein

Department of Physics, College of Education for Pure Science / Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq

* Corresponding Author:

Chalcogenide Letters 2023, 20(10), 733-740. https://doi.org/10.15251/CL.2023.2010.733

Received 19 July 2023; Accepted 18 October 2023;

Abstract

We studied at the morphology, structural setup, and optical characteristics of thin cadmium (CdSe) films a thickness of 250 nm that were created by thermal evaporation over glass, The films exhibited a hexagonal shape were crystalline, and tended to form grains in the (111) crystallographic direction, according to the X-ray diffraction examinations. These characteristics were established using the investigation's findings. Through the use of thin films of CdSe doped with Ag at a concentration of 1.5%, the crystal structure orientations for pure CdSe (25.32, 41.84) and CdSe:Ag (25.39, 41.01) that were both pure as well as those that were doped with silver were both determined. The band gap of the optical spectrum decreased by 1.93–1.81 eV (300–700 nm). This reduced the rate of absorption measuring the current-voltage properties of heterojunctions made from a range of clean and doped materials with an incident electrical power density of (100 mW/cm²). The films' hexagonal structure was revealed by the X-ray investigation, and grain development was driven by the (220,111) crystallographic direction.

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