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

0497036 - ÚSMH 2019 RIV NL eng J - Článek v odborném periodiku
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
Institucionální podpora: RVO:67985891
Klíčová slova: Tellurite glasses * Transition metal oxides * Temperature dependent optical properties * Optical band gap
Obor OECD: Ceramics
Impakt faktor: 4.175, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0289647