Naslov
GISAXS study of temperature evolution in nanostructured CeVO4 films

Autori
Turković, Aleksandra ; Dubček, Pavo ; Lučić-Lavčević, Magdy ; Pavlović, Mladen ; Crnjak Orel, Zorica ; Bernstorff, Sigrid

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
E-MRS 2006 Fall Meeting Warsaw (Poland), 4th-8th September, 2006, Scientific Programme and Book of Abstracts / - Varšava : Conference Engine@pielaszek research, 2006

Skup
E-MRS 2006 fall meeting

Mjesto i datum
Varšava, Poljska, 04.09.2006. - 08.09.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
GISAXS; V/Ce oxides

Sažetak
Cerium vanadate films on glass substrate were obtained by sol-gel process. The morphology of these nanostructured and porous films was studied by grazing-incidence small-angle X-ray scattering (GISAXS). The aim of the GISAXS study was to investigate the changes in grain sizes due to the temperature evolution with three different time intervals (5min., 15 min. and 30 min.) of annealing at 673 K. We found that the effects of the different times of annealing are diverse for surface and bulk properties of this V/Ce oxide. Although the increase in size is common to all the samples, it is far more pronounced in the bulk. The result is that for short annealing time grain sizes are bigger close to the surface, while this is reversed after long annealing. Generally, the annealing time is critical parameter in sol-gel preparation of the nanostructured vanadium oxide films, which are used as electrodes in new optoelectronic devices. This particular morphology is quite suitable for application in electrochromic devices, in an advanced electrochemical cell concept and efficient new solar cells.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA