Raman studies and some physical properties of selected (PbO)x(Nb2O5)y(TeO2)1-x-y glasses

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F10%3A39881473" target="_blank" >RIV/00216275:25310/10:39881473 - isvavai.cz</a>

Alternative codes found

RIV/61389013:_____/10:00347231

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Raman studies and some physical properties of selected (PbO)x(Nb2O5)y(TeO2)1-x-y glasses

Original language description

Selected Nb2O5-TeO2, PbO-Nb2O5-TeO2 and PbO-TeO2 glasses were prepared from very pure oxides.The glass-transition temperature increased from 281 to 411 °C with an increase in Nb2O5 content and,simultaneously, the coefficient of thermal expansion decreased from 21 to 11 ppm/°C. Raman scattering measurements indicated that TeO4 trigonal bipyramids, TeO3+1, TeO3 trigonal unit and NbO6 octahedra were the basic structural units of Nb2O5-TeO2 and PbO-Nb2O5-TeO2 glasses. The optical band gap was determined inthe region 3.39-3.60 eV and the coefficient of the temperature dependence of the optical gap for the temperatures between 30 and 250 °C in the region 4.1 x 10(-4) - 6.8 x 10(-4) eV/K was found. Non-linear refractive index of the studied glasses was estimated from the optical gap values at around 0.85 x 10-11 esu.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JH - Ceramics, fire-proof materials and glass

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Optical Materials

ISSN

0925-3467

e-ISSN

—

Volume of the periodical

32

Issue of the periodical within the volume

9

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

—

UT code for WoS article

000279620900021

EID of the result in the Scopus database

—