Abstract
Thermal behavior of bulk material analyzed through differential scanning calorimetry and optical properties of thin films have been studied. The material exhibits a high glass transition temperature (T g) and wide thermal stability region (ΔT), which make the glass of potential use in temperature sensitive technological applications. We see the enhanced cross-linking and stronger bonding network in the glassy matrix by substituting Pb with Ge, which plays a significant role in tuning the properties of the material. Addition of heavier Pb in base glass matrix causes a red shift in the absorption edge and reduces optical losses in chalcogenide glass. The material possesses a tunable band gap around 1.75 eV and high refractive index around 2.8. Effect of compositional variation and thickness on optical constants has also taken into account.
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Kumar, P., Modgil, V. & Rangra, V. Thermal and Optical Characterization of a Sn-Se-Pb-Ge Glassy Alloy. J. Electron. Mater. 45, 486–492 (2016). https://doi.org/10.1007/s11664-015-4134-5
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DOI: https://doi.org/10.1007/s11664-015-4134-5