Guest Editors
Prof. Essam Ramadan Shaaban
Email: esam_ramadan2008@yahoo.com
Affiliation: Physics Department, Al-Azhar University, Assiut, Egypt
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Research Interests: chalcogenide semiconductor bulk and thin films; photovoltaic absorber materials; optoelectronic device physics; thin-film deposition and nanostructuring; bandgap and defect engineering; dilute magnetic semiconductors; thermal, structural, optical, electrical, and magnetic characterization of functional materials; solar cell performance optimization; stability and reliability of thin-film devices; modeling and simulation of semiconductor materials and devices
Dr. Hesham M.H. Zakaly
Email: h.m.zakaly@gmail.com
Affiliation: Physics Department, Faculty of Science, Al-Azhar University, Assiut, Egypt
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Research Interests: chalcogenide thin films and nanomaterials; photovoltaic materials and solar cell optimization; radiation-resistant materials for optoelectronic applications; structural and optical characterization of functional thin films; Monte Carlo simulation of material properties; bandgap engineering of semiconductor compounds; sustainable energy materials; environmental applications of chalcogenide compounds
Summary
Chalcogenide thin films have emerged as a cornerstone in advanced optoelectronic and photovoltaic technologies due to their tunable bandgaps, high absorption coefficients, and compatibility with scalable fabrication techniques. Their unique structural and electronic properties position them as promising candidates for next-generation solar cells and multifunctional optoelectronic devices.
This Special Issue aims to present recent advances in the synthesis, engineering, characterization, and device integration of chalcogenide thin films for optoelectronic and photovoltaic applications. It seeks to bring together experimental and theoretical contributions addressing material design, bandgap tuning, defect control, interface engineering, and performance optimization of solar cells and photonic devices. Emphasis will be placed on scalable deposition techniques, stability enhancement, and structure–property relationships that enable high-efficiency and durable devices. Both fundamental studies and application-oriented research that contribute to sustainable energy technologies are welcome.
· Advanced deposition and nanostructuring techniques for chalcogenide thin films
· Bandgap engineering, defect physics, and compositional optimization
· Chalcogenide absorber layers for high-efficiency solar cells
· Interface engineering and heterojunction design in optoelectronic devices
· Structural, optical, electrical, and magnetic characterization of thin films
· Stability, degradation mechanisms, and reliability of thin-film solar cells
· Modeling and simulation of chalcogenide semiconductor materials and devices
Graphic Abstract
Keywords
chalcogenide thin films; photovoltaic absorber materials; solar cells; bandgap engineering; thin-film deposition; optoelectronic devices; defect engineering; nanostructured semiconductors; device stability; semiconductor modeling
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