1. Experimental and theoretical investigation of pure and (Co,Sr) co-doped CdS system for optoelectronics applications: A quantitative comparison.
- Author
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Abuhusain, Ashwaq, Abdulaziz, Fahad, Gandouzi, M., Alshammari, Abdullah S., Bouzidi, M., Mohamed, Mansour, and Khan, Z.R.
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DOPING agents (Chemistry) , *OPTOELECTRONICS , *RADIOGRAPHIC films , *DENSITY functional theory , *SPIN polarization , *BAND gaps - Abstract
This work reports an experimental and theoretical investigation of pure, Sr, and (Sr,Co) co-doped CdS systems. Pure and co-doped CdS nanostructure thin films were grown with varying Co doping concentrations by sol-gel spin coating method. X-ray diffractograms of the films reveal that the films grow along (002) plane and the crystallites sizes were about ∼3–6 nm. The band gaps of the films were obtained in order of 2.30–2.48 eV and a blue shift in the band gap with co-doping was observed in comparison with Sr:CdS system. In addition, pure and co-doped CdS system were also investigated via density functional theory. Initially, pure and co-doped CdS systems were optimized using WIEN2k software based on density functional theory. The calculated optical properties and band gap reveal a close agreement with the experimental results. The (Sr,Co) co-doped CdS shows the spin polarization effect on the valence band which makes this materials suitable for optoelectronics and spintronics applications. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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