Nanostructured Fe2O3/TiO2 thick films prepared by screen printing

Autor: Obrad S. Aleksic, Zorka Z. Djuric, Maria V. Nikolic, Nikola Tasic, Marina Vukovic, Zorica Marinkovic-Stanojevic, Nenad Nikolic, Pantelija M. Nikolic
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Processing and Application of Ceramics, Vol 7, Iss 3, Pp 129-134 (2013)
Druh dokumentu: article
ISSN: 1820-6131
DOI: 10.2298/PAC1303129A
Popis: Nanostructured single layered (pure TiO2, pure α-Fe2O3 and mixed Fe2O3/TiO2 with two different oxide ratios, 2 : 3 and 3 : 2) and double layered (TiO2 layer over a Fe2O3 layer) thick films have been fabricated by screen printing technology on a glass substrate. The pastes used for film preparation were obtained by adding an organic vehicle to the oxide powders together with a small percentage of binding glass frit. Samples were dried up to 100 °C and sintered at 650 °C/60 minutes. Structural, morphological and optical studies have been carried out using XRD, SEM analyses and UV/Vis spectroscopy. The prepared pure and mixed Fe2O3/TiO2 thick films had a homogenous nanostructure without secondary phases. Indirect band gaps were determined from the measured transmission spectra and the obtained values are in the range of literature data.
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