CdSe electrodeposition on anodic, barrier or porous Ti oxides. A sensitization effect

Kosanovic, T; Karoussos, D; Bouroushian, M

dc.contributor.author	Kosanovic, T	en
dc.contributor.author	Karoussos, D	en
dc.contributor.author	Bouroushian, M	en
dc.date.accessioned	2014-03-01T01:32:59Z
dc.date.available	2014-03-01T01:32:59Z
dc.date.issued	2010	en
dc.identifier.issn	1432-8488	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20262
dc.subject	Anodization	en
dc.subject	Cadmium selenide	en
dc.subject	Electrodeposition	en
dc.subject	Optical sensitization	en
dc.subject	Photoelectrochemistry	en
dc.subject	Titanium dioxide	en
dc.subject.classification	Electrochemistry	en
dc.subject.other	Anodizations	en
dc.subject.other	Cadmium selenide	en
dc.subject.other	Cadmium selenides	en
dc.subject.other	Optical sensitization	en
dc.subject.other	Photo-electrochemistry	en
dc.subject.other	Cadmium	en
dc.subject.other	Cadmium compounds	en
dc.subject.other	Electrochemistry	en
dc.subject.other	Electrodeposition	en
dc.subject.other	Light	en
dc.subject.other	Oxide minerals	en
dc.subject.other	Polysulfides	en
dc.subject.other	Substrates	en
dc.subject.other	Thin films	en
dc.subject.other	Titanium	en
dc.subject.other	Titanium dioxide	en
dc.subject.other	Titanium oxides	en
dc.subject.other	X ray diffraction analysis	en
dc.subject.other	Zinc	en
dc.subject.other	Cadmium alloys	en
dc.title	CdSe electrodeposition on anodic, barrier or porous Ti oxides. A sensitization effect	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10008-009-0806-5	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10008-009-0806-5	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	A variety of oxide layers, from passive amorphous TiOx of few nanometer thicknesses to micrometer-thick porous with different anatase to rutile ratios, were prepared by potentiostatic or galvanostatic anodization of Ti metal in H2SO4 and HF/H3PO4 solutions and used as substrates for electrodeposition of cadmium selenide from acidic selenite baths. The substrate and CdSe microstructures were investigated by X-ray diffraction and electron microscopy techniques. Barrier TiOx and heterogeneously structured oxide substrates induced growth of zinc blend/wurtzite CdSe, whereas highly ordered porous titanium dioxide (TiO2) accommodated growth of (10.0) oriented hexagonal CdSe thin layers. Pulsed potential plating was employed to control pore-filling during electrodeposition of CdSe. Photoelectrochemical evaluation of the produced electrodes in polysulfide cell under green light illumination implied a TiO2 sensitization effect in the case of CdSe/(porous TiO2)/Ti system, as evidenced by a negative shift in flat band potential and an increase in open circuit potential. The sensitization effect was observed even with CdSe deposited by a single potential pulse signifying the importance of contacting the TiO2 surface to the electrolytic solution via a very thin layer of CdSe. © 2009 Springer-Verlag.	en
heal.publisher	SPRINGER	en
heal.journalName	Journal of Solid State Electrochemistry	en
dc.identifier.doi	10.1007/s10008-009-0806-5	en
dc.identifier.isi	ISI:000272121200012	en
dc.identifier.volume	14	en
dc.identifier.issue	2	en
dc.identifier.spage	241	en
dc.identifier.epage	248	en