Solid-state spreading of oxides: Morphology and conductivity of In2O3-based films / Neiman A., Yakovlev S. // Solid State Sciences. - 2007. - V. 9, l. 2. - P. 185-195.

ISSN:

12932558

Type:

Article

Abstract:

Spontaneous solid-state spreading of In2O3 over the surface of ceramic and single crystal substrates of Al2O3, ZrO2(0.08Y2O3), Y3Al5O12 and YAlO3 at 1380 and 1500 °C has been investigated. The films structure, element and phase composition were studied by means of XRD and SEM/EDS. The phase compositions of all films correspond to that of powder In2O3. The most films are dense with monolithic "film/substrate" interface. AC-conductivity in the range 25-250 °C is reported. Depending on the substrate material, the films demonstrate a whole set of conductivity types (semi-conductive, metallic) and wide range of magnitudes (more than 3 orders). Thermodynamic and kinetic aspects of oxide spreading and subsequent crystallization on the surface of primary border film are discussed. It is shown, in particular, that the solid-state spreading is facilitated in systems with high chemical affinity (mutual solubility, formation of intermediate interface compounds). In the case of eutectic-type systems, heteroepitaxy of diffusant at substrate surface results in formation of dense films. © 2006 Elsevier Masson SAS. All rights reserved.

Author keywords:

Conductivity; In2O3-based films; Solid-state spreading; Solid-state wetting; Surface and interface phenomena; Surface energy

Index keywords:

Electric conductivity; Indium compounds; Interfacial energy; Morphology; Scanning electron microscopy; Single crystals; Surface phenomena; Thin films; X ray diffraction; In2O3-based films; Interface p

DOI:

10.1016/j.solidstatesciences.2

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-33847314092&doi=10.1016%2fj.solidstatesciences.2006.11.016&partnerID=40&md5=491ffa1cf496f860ec629fd87b458721

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-33847314092&doi=10.1016%2fj.solidstatesciences.2006.11.016&partnerID=40&md5=491ffa1cf496f860ec629fd87b458721
Affiliations	Inorganic Chemistry Department, Ural State University, 620083 Ekaterinburg, Russian Federation; Institute for Materials and Surface Technology (IMST), University of Applied Sciences of Kiel, Grenzstrasse 3, D-24149 Kiel, Germany
Author Keywords	Conductivity; In2O3-based films; Solid-state spreading; Solid-state wetting; Surface and interface phenomena; Surface energy
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Correspondence Address	Neiman, A.; Inorganic Chemistry Department, Ural State University, 620083 Ekaterinburg, Russian Federation; email: arkady.neiman@usu.ru
CODEN	SSSCF
Language of Original Document	English
Abbreviated Source Title	Solid State Sci.
Source	Scopus