http://www.cnr.it/ontology/cnr/individuo/prodotto/ID222550
Chemical vapour deposition and characterization of gallium oxide thin films (Articolo in rivista)
- Type
- Label
- Chemical vapour deposition and characterization of gallium oxide thin films (Articolo in rivista) (literal)
- Anno
- 1996-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/0040-6090(95)08161-5 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Battiston G.A.; Gerbasi R.; Porchia M.; Bertoncello R.; Caccavale F. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://ac.els-cdn.com/0040609095081615/1-s2.0-0040609095081615-main.pdf?_tid=e8172bc2-cd1a-11e2-b4d2-00000aacb35e&acdnat=1370352802_9bed0ef06036247455ef29e2ad7e245c (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
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- Scopu (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1-3 CNR, Ist. Chim. Tecnologie Inorganiche M., Corso Stati Uniti 4, I-35127 Padova, Italy /
4 Dipartimento di Chimica Inorganica, Metallorganica Ed Analitica, Università di Padova, Via Loredan 4, I-35100 Padova, Italy/
5 INFM, Dipartimento di Fisica, Università di Padova, via Marzolo 8, I-35131 Padova, Italy (literal)
- Titolo
- Chemical vapour deposition and characterization of gallium oxide thin films (literal)
- Abstract
- Gallium oxide thin films were deposited on alumina and TiO2 substrates by metal organic chemical vapour deposition using gallium tris-hexafluoroacetylacetonate (Ga(hfac)3) as precursor in the presence of oxygen. The depositions were carried out at 470 °C and 2.6 kPa leading to a growth rate of 0.7 ?mh-1. As-grown films appeared black, smooth and well adherent to the substrates. X-Ray photoelectron spectroscopy (XPS) analysis revealed stoichiometric Ga2O3 with a low carbon content (less than 5%) and almost undetectable fluorine. As-deposited Ga2O3 films were X-ray amorphous, but the onset of a crystallization process was evident after annealing in dry air at 700°C. Moreover, after thermal treatment, the films became carbon free and transparent in the visible range. The effect of annealing at different temperatures on the film structure was investigated by X-ray diffraction. A phase modification from amorphous to polycrystalline Ga2O3 was observed after thermal treatment at temperatures from 600 to 1000°C. As shown by secondary ion mass spectrometry (SIMS) studies, Al diffusion into Ga2O3 films was detected after annealing at 1000°C when pure Al2O3 was used as substrate; this diffusion was completely inhibited using a TiO2 film as buffer layer with a thickness of at least 4 ?m (literal)
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