FTIR and Optical Properties of various Se-S-Zn Chalcogenide Glasses

International Conference on Materials Science and Technology 2012

Sanjay^1 ; Kishore, N.^1 ; Kundu, R.S.^1 ; Dhankhar, S.^1

Department of Applied Physics, Guru Jambheshwar University of Science and Technology, Hisar

125001, India^1

关键词: Amorphous solids;    Chalcogenide glass;    Degree of disorder;    FT-IR spectrum;    Melt quenching techniques;    Metallic bonding;    Nano-sized particles;    XRD patterns;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/73/1/012150/pdf
DOI  :  10.1088/1757-899X/73/1/012150

来源: IOP

【 摘 要 】

Se-S-Zn chalcogenide glasses are prepared by melt-quenching technique. The amorphous nature of the glasses is ascertained by XRD patterns. In this work, the structural changes in these glasses are investigated by FTIR- spectra. An absorption band at 500cm-1found in each glass is assigned due to the presence of Se8 ring. The optical band gap is observed to decrease with increase in Zn content. This decrease has been explained on the basis of metallic bonding due to incorporation of Zn. The Urbach's energy is used to characterize the degree of disorder in amorphous solids. SEM has been used to prove the formation of nanosized particles.