Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10070159" target="_blank" >RIV/00216208:11320/10:10070159 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/10:00353095 RIV/00216208:11310/10:10070159

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Nanocrystalline titanium dioxide films: Influence of ambient conditions on surface- and volume-related photoluminescence

Original language description

We report on systematic study of photoluminescence properties of nanocrystalline titanium dioxide films consisting of predominantly anatase nanoparticles with diameters larger than 13 nm. We measured photoluminescence under two selected excitation wavelengths 325 nm/442 nm, i.e., above/below band gap excitation, under different values of ambient air pressure 5-105 Pa, and in the temperature interval 10-300 K. On basis of our results, we are able to distinguish two different processes leading to photoluminescence: the exciton recombination and the recombination of carriers in the energy states related to the surface of nanocrystals. We propose microscopic models describing well the effects of temperature and ambient conditions on photoluminescence of nanocrystalline titanium dioxide films.

Czech name

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Czech description

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Type

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

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>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

Journal of Applied Physics

ISSN

0021-8979

e-ISSN

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Volume of the periodical

108

Issue of the periodical within the volume

11

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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