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On the structure and optical band gap in some (PbO)(x) (BaO)(0.3-x) (ZnO)(0.1) (TeO2)(0.6) glasses
Authors: Tichá Helena | Tichý Ladislav
Year: 2015
Type of publication: článek v odborném periodiku
Name of source: Optoelectronics and Advanced Materials - Rapid Communications
Publisher name: INOE & INFM Publishing House
Place: Bukurešť - Magurele
Page from-to: 951-955
Titles:
Language Name Abstract Keywords
cze Struktura a optická šířka zakázaného pásu skel systému (PbO)(x) (BaO)(0.3-x) (ZnO)(0.1) (TeO2)(0.6) Byla připravena čtyři žlutá transparentní skla. Pomocí Ramanovy spektroskopie byl studována struktura připravených skel, kde byl BaO postupně nahrazován PbO, nebyla nalezena významná změna struktury.Teplota skelné transformace se u připravených skel pohybuje v rozmezí 300-343 °C (pro x=0,2-0,05), index lomu 2,1-1,9 (pro x=0,2-0,05) a hodnoty optické šířky zakázaného pásu 3,58-3,75 eV (pro x=0,2-0,05). Oxidová skla; Ramanova spektroskopie; optické vlastnosti
eng On the structure and optical band gap in some (PbO)(x) (BaO)(0.3-x) (ZnO)(0.1) (TeO2)(0.6) glasses Four quaternary yellowish and well transparent glasses were prepared. The structural arrangement of the glasses was examined by Raman scattering and no gross structural changes were found due to substitution of BaO by PbO. The glass transition of the glasses prepared was found in the region 300 degrees C (x = 0.2) to 343 degrees C (x = 0.05), the refractive index was found in the region 1.9(5) (x = 0.05) to 2.1(5) (x = 0.2) and the optical band gap was found in the region 3.58 eV (x = 0.2) to 3.75 eV (x = 0.05). Oxide glasses; Raman spectroscopy; Optical properties