Indium tin oxide films prepared via wet chemical route

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorLegnani, C.
dc.creatorLima, S. A. M.
dc.creatorOliveira, H. H. S.
dc.creatorQuirino, W. G.
dc.creatorMachado, R.
dc.creatorSantos, R. M. B.
dc.creatorDavolos, Marian Rosaly
dc.creatorAchete, C. A.
dc.creatorCremona, M.
dc.date2014-05-20T15:23:00Z
dc.date2016-10-25T17:56:49Z
dc.date2014-05-20T15:23:00Z
dc.date2016-10-25T17:56:49Z
dc.date2007-12-03
dc.date.accessioned2017-04-05T23:39:36Z
dc.date.available2017-04-05T23:39:36Z
dc.identifierThin Solid Films. Lausanne: Elsevier B.V. Sa, v. 516, n. 2-4, p. 193-197, 2007.
dc.identifier0040-6090
dc.identifierhttp://hdl.handle.net/11449/33870
dc.identifierhttp://acervodigital.unesp.br/handle/11449/33870
dc.identifier10.1016/j.tsf.2007.06.137
dc.identifierWOS:000252037500017
dc.identifierhttp://dx.doi.org/10.1016/j.tsf.2007.06.137
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/877893
dc.descriptionIn this work, indium tin oxide (ITO) films were prepared using a wet chemical route, the Pechini method. This consists of a polyesterification reaction between an alpha-hydroxicarboxylate complex (indium citrate and tin citrate) with a polyalcohol (ethylene glycol) followed by a post annealing at 500 degrees C. A 10 at.% of doping of Sn4+ ions into an In2O3 matrix was successfully achieved through this method. In order to characterize the structure, the morphology as well as the optical and electrical properties of the produced ITO films, they were analyzed using different experimental techniques. The obtained films are highly transparent, exhibiting transmittance of about 85% at 550 nm. They are crystalline with a preferred orientation of [222]. Microscopy discloses that the films are composed of grains of 30 nm average size and 0.63 nm RMS roughness. The films' measured resistivity, mobility and charge carrier concentration were 5.8 x 10(-3) Omega cm, 2.9 cm(2)/V s and -3.5 x 10(20)/cm(3), respectively. While the low mobility value can be related to the small grain size, the charge carrier concentration value can be explained in terms of the high oxygen concentration level resulting from the thermal treatment process performed in air. The experimental conditions are being refined to improve the electrical characteristics of the films while good optical, chemical, structural and morphological qualities already achieved are maintained. (C) 2007 Elsevier B.V. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationThin Solid Films
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectindium tin oxide
dc.subjectITO
dc.subjectwet chemical route
dc.subjectPechini
dc.subjectXPS
dc.titleIndium tin oxide films prepared via wet chemical route
dc.typeOtro


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