0497036 - ÚSMH 2019 RIV NL eng J - Journal Article
Gedikoglu, N. - Celikbilek Ersundu, M. - Kostka, Petr - Bašinová, Nikola - Ersundu, A.E.
Investigating the influence of transition metal oxides on temperature dependent optical properties of PbCl2–TeO2 glasses for their evaluation as transparent large band gap semiconductors.
Journal of Alloys and Compounds. Roč. 748, JUN 5 (2018), s. 687-693. ISSN 0925-8388. E-ISSN 1873-4669
Institutional support: RVO:67985891
Keywords : Tellurite glasses * Transition metal oxides * Temperature dependent optical properties * Optical band gap
OECD category: Ceramics
Impact factor: 4.175, year: 2018
https://www.sciencedirect.com/science/article/pii/S092583881831079X?via%3Dihub

A series of ternary glasses in the MeO-PbCl2-TeO2 (MeO = Bi2O3, MoO3, Sb2O3, WO3, ZnO) system have been synthesized by conventional melt quenching technique. Thermal properties of glasses - glass transition (T-g) and crystallization (Tc/Tp) temperatures, temperature difference (Delta T) and thermal stability (S) values - were determined using differential scanning calorimetry. The influence of transition metal oxides on refractive index, position and shift rate of absorption edge, optical band gap energy (Eopt) and Urbach energy (Delta E) was investigated and their dependence on temperature was studied. The Eopt and Delta E values of all glasses studied in this work were found to be comparable with the values corresponding to some semiconductors. The glasses under study show great potential for applications in optoelectronics.
Permanent Link: http://hdl.handle.net/11104/0289647