• Archana Srivastava

In this research work, we have synthesized bulk Se80In5Te6Sb9 alloy using melt quenching technique and these films having thickness 400 nm were coated on glass substrate using thermal evaporation technique. The amorphous as well as glassy nature of synthesized Se80In5Te6Sb9 alloy was confirmed by non-isothermal DSC measurements at different heating rates 5, 10, 15, 20 K/min. The phase transformation studies in Se80In5Te6Sb9 thin films were studied by inducing γ-irradiation of doses 4, 8, and 12 kGy at dose rate of 2 kGy/hr using Gamma chamber (GC-5000). The structural, morphological and optical studies of as-prepared and γ-irradiated thin films were studied by High resolution X-ray diffraction (HRXRD), Field Emission Scanning Electron Microscopy (FESEM) and UV/VIS/NIR spectrophotometer respectively. The optical parameters such as absorption coefficient and extinction coefficient were found to be vary with γ-irradiation doses. The optical band gap is found to be increased as γ-irradiation doses increases. These notable shifts in the optical band gap and absorption coefficient values can be explained by the increase in disorderness and lattice strain due to γ-irradiation.

Chalcogenideglass, Thin films, Absorption coefficient, Band gap, Phase Transformation

"Studies on phase change Se80In5Te6Sb9 thin films by -irradiation for optoelectronic devices ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 1, page no.h557-h565, January-2025, Available :http://www.jetir.org/papers/JETIR2501752.pdf

"Studies on phase change Se80In5Te6Sb9 thin films by -irradiation for optoelectronic devices ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 1, page no. pph557-h565, January-2025, Available at : http://www.jetir.org/papers/JETIR2501752.pdf