Electrical, dielectric, and optical properties of Sb2O3?Li2O?MoO3 glasses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F15%3A00450551" target="_blank" >RIV/67985891:_____/15:00450551 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2015.07.021" target="_blank" >http://dx.doi.org/10.1016/j.jnoncrysol.2015.07.021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2015.07.021" target="_blank" >10.1016/j.jnoncrysol.2015.07.021</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrical, dielectric, and optical properties of Sb2O3?Li2O?MoO3 glasses

Popis výsledku v původním jazyce

Temperature and frequency dependencies of DC and AC conductivities, dielectric response, static permittivity, optical absorption edge, infrared absorption spectrum, density, and temperatures of glass transition and crystallization for lithium molybdenum-antimonite glasses, (80-x)Sb2O3-20Li(2)O-xMoO(3), where x = 0-40, are measured and discussed. The DC conductivity increases with increasing concentration of MoO3. At 150 degrees C, it ranges from 5 x 10(-11) S/m up to 3 x 10(-8) S/m. Polaron hopping between Mo5+ and Mo6+ ions contributes, probably, to the DC conductivity. Ionic conductivity by Li+ ions is also present. The conduction activation energy monotonously decreases from 1.15 eV, at x = 5, down to 0.91 eV, at x = 40. In all glasses with x> 0, the conduction activation energy is close to a half of the indirect allowed optical gap. The pre-exponential factor, sigma(0), goes through a sharp maximum close to the composition (x = 20) with both the highest glass transition temperature

Název v anglickém jazyce

Electrical, dielectric, and optical properties of Sb2O3?Li2O?MoO3 glasses

Popis výsledku anglicky

Temperature and frequency dependencies of DC and AC conductivities, dielectric response, static permittivity, optical absorption edge, infrared absorption spectrum, density, and temperatures of glass transition and crystallization for lithium molybdenum-antimonite glasses, (80-x)Sb2O3-20Li(2)O-xMoO(3), where x = 0-40, are measured and discussed. The DC conductivity increases with increasing concentration of MoO3. At 150 degrees C, it ranges from 5 x 10(-11) S/m up to 3 x 10(-8) S/m. Polaron hopping between Mo5+ and Mo6+ ions contributes, probably, to the DC conductivity. Ionic conductivity by Li+ ions is also present. The conduction activation energy monotonously decreases from 1.15 eV, at x = 5, down to 0.91 eV, at x = 40. In all glasses with x> 0, the conduction activation energy is close to a half of the indirect allowed optical gap. The pre-exponential factor, sigma(0), goes through a sharp maximum close to the composition (x = 20) with both the highest glass transition temperature

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP106%2F12%2F2384" target="_blank" >GAP106/12/2384: Speciální skla na bázi oxidů těžkých kovů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Non-Crystalline Solids

ISSN

0022-3093

e-ISSN

—

Svazek periodika

428

Číslo periodika v rámci svazku

NOV 15

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

42-48

Kód UT WoS článku

000363345200007

EID výsledku v databázi Scopus

2-s2.0-84939531026