Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/7818
Title: Influence of synthesis parameters on morphology and phase composition of porous titania layers prepared via water based chemical solution deposition
Authors: TRUYEN, Ine 
HAELDERMANS, Ilse 
VAN BAEL, Marlies 
VAN DEN RUL, Heidi 
D'HAEN, Jan 
MULLENS, Jules 
Terryn, H
Goossens, V.
Issue Date: 2007
Publisher: ELSEVIER SCI LTD
Source: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 27(16). p. 4537-4546
Abstract: In this work, thick nanocrystalline mesoporous titania layers are synthesized via chemical Solution deposition using a water based citratoperoxo-Ti(IV)-precursor solution. The aqueous citratoperoxo-Ti(IV)-precursor Solution is modified by the addition of polyvinyl alcohol (PVA), which acts as a thickener and pore forming agent. Layers are tape casted onto ITO-coated glass substrates and are thermally processed. The influence of process parameters like Ti(IV)-concentration, blade thickness, crystallization temperature and time on the film's phase composition, morphology and thickness are investigated by means of X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), variable angle spectroscopic ellipsometry (VASE), atomic force microscopy (AFM) and profilometry. It is shown that the Ti(IV)-concentration and heat treatment influence the size and shape of the grains of which the films are composed, the film morphology (porosity, surface roughness) and the layer thickness, but no influence on the phase formation is observed. In all cases phase pure anatase layers are obtained. (C) 2007 Elsevier Ltd. All rights reserved.
Notes: Hasselt Univ, Inst Mat Res, Lab Inorgan & Phys Chem, B-3590 Diepenbeek, Belgium. Hasselt Univ, Inst Mat Res, Phys Anal Grp, B-3590 Diepenbeek, Belgium. IMEC VZW, Div IMOMEC, B-3590 Diepenbeek, Belgium. Vrije Univ Brussels, Dept Met Electrochem & Mat Sci, B-1050 Brussels, Belgium.Mullens, J, Hasselt Univ, Inst Mat Res, Lab Inorgan & Phys Chem, Agoralaan Bldg D, B-3590 Diepenbeek, Belgium.ine.truijen@uhasselt.be marlies.vanbael@uhasselt.be heidi.vandenrul@uhasselt.be jan.dhaen@uhasselt.be jules.mullens@uhasselt.be hterryn@vub.ac.be vgoossens@vub.ac.be
Keywords: aqueous synthesis; films; sol-gel processes; tape casting; TiO2; porosity
Document URI: http://hdl.handle.net/1942/7818
ISSN: 0955-2219
e-ISSN: 1873-619X
DOI: 10.1016/j.jeurceramsoc.2007.02.200
ISI #: 000251803600014
Category: A1
Type: Journal Contribution
Validations: ecoom 2009
Appears in Collections:Research publications

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