Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties
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Vasiljević, ZorkaLuković, Miloljub D.
Nikolić, Maria Vesna
Tasić, Nikola B.
Mitrić, Miodrag
Aleksić, Obrad S.
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Thick films using starting nanopowders of TiO2 (anatase 99.7%) and alpha-Fe2O3 (hematite) mixed in the weight ratios 60:40 and 40:60 for thick film paste were fabricated by screen printing technology on an alumina substrate. Samples were sintered at temperatures of 800-950 degrees C for 60 min. Structural and electronic properties were analyzed by XRD and SEM analysis, UV/vis spectroscopy and current voltage analysis in view of potential application as gas sensors and anodes in photoelectrochemical cells for hydrogen generation and water splitting. XRD analysis showed that at 800 degrees C monoclinic pseudobrookite formed and anatase had transformed into rutile. Increase in sintering temperature lead to a gradual transformation of monoclinic pseudobrookite into the orthorhombic phase. SEM analysis showed that a homogenous small grain structure was obtained especially in the case of thick film samples with the 40:60 ratio of starting anatase and hematite sintered at 850 degrees C. (C) 2...015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Keywords:
Films / Sintering / Optical properties / PseudobrookiteSource:
Ceramics International, 2015, 41, 5, 6889-6897Funding / projects:
- Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45007)
DOI: 10.1016/j.ceramint.2015.01.141
ISSN: 0272-8842; 1873-3956
WoS: 000353176400029
Scopus: 2-s2.0-84925182708
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VinčaTY - JOUR AU - Vasiljević, Zorka AU - Luković, Miloljub D. AU - Nikolić, Maria Vesna AU - Tasić, Nikola B. AU - Mitrić, Miodrag AU - Aleksić, Obrad S. PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/504 AB - Thick films using starting nanopowders of TiO2 (anatase 99.7%) and alpha-Fe2O3 (hematite) mixed in the weight ratios 60:40 and 40:60 for thick film paste were fabricated by screen printing technology on an alumina substrate. Samples were sintered at temperatures of 800-950 degrees C for 60 min. Structural and electronic properties were analyzed by XRD and SEM analysis, UV/vis spectroscopy and current voltage analysis in view of potential application as gas sensors and anodes in photoelectrochemical cells for hydrogen generation and water splitting. XRD analysis showed that at 800 degrees C monoclinic pseudobrookite formed and anatase had transformed into rutile. Increase in sintering temperature lead to a gradual transformation of monoclinic pseudobrookite into the orthorhombic phase. SEM analysis showed that a homogenous small grain structure was obtained especially in the case of thick film samples with the 40:60 ratio of starting anatase and hematite sintered at 850 degrees C. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved. T2 - Ceramics International T1 - Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties VL - 41 IS - 5 SP - 6889 EP - 6897 DO - 10.1016/j.ceramint.2015.01.141 ER -
@article{ author = "Vasiljević, Zorka and Luković, Miloljub D. and Nikolić, Maria Vesna and Tasić, Nikola B. and Mitrić, Miodrag and Aleksić, Obrad S.", year = "2015", abstract = "Thick films using starting nanopowders of TiO2 (anatase 99.7%) and alpha-Fe2O3 (hematite) mixed in the weight ratios 60:40 and 40:60 for thick film paste were fabricated by screen printing technology on an alumina substrate. Samples were sintered at temperatures of 800-950 degrees C for 60 min. Structural and electronic properties were analyzed by XRD and SEM analysis, UV/vis spectroscopy and current voltage analysis in view of potential application as gas sensors and anodes in photoelectrochemical cells for hydrogen generation and water splitting. XRD analysis showed that at 800 degrees C monoclinic pseudobrookite formed and anatase had transformed into rutile. Increase in sintering temperature lead to a gradual transformation of monoclinic pseudobrookite into the orthorhombic phase. SEM analysis showed that a homogenous small grain structure was obtained especially in the case of thick film samples with the 40:60 ratio of starting anatase and hematite sintered at 850 degrees C. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.", journal = "Ceramics International", title = "Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties", volume = "41", number = "5", pages = "6889-6897", doi = "10.1016/j.ceramint.2015.01.141" }
Vasiljević, Z., Luković, M. D., Nikolić, M. V., Tasić, N. B., Mitrić, M.,& Aleksić, O. S.. (2015). Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties. in Ceramics International, 41(5), 6889-6897. https://doi.org/10.1016/j.ceramint.2015.01.141
Vasiljević Z, Luković MD, Nikolić MV, Tasić NB, Mitrić M, Aleksić OS. Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties. in Ceramics International. 2015;41(5):6889-6897. doi:10.1016/j.ceramint.2015.01.141 .
Vasiljević, Zorka, Luković, Miloljub D., Nikolić, Maria Vesna, Tasić, Nikola B., Mitrić, Miodrag, Aleksić, Obrad S., "Nanostructured Fe2O3/TiO2 thick films: Analysis of structural and electronic properties" in Ceramics International, 41, no. 5 (2015):6889-6897, https://doi.org/10.1016/j.ceramint.2015.01.141 . .