In situ micro- and macro-Raman investigation of the redox couple behavior in DSSCS

Kontos, AG; Stergiopoulos, T; Tsiminis, G; Raptis, YS; Falaras, P

dc.contributor.author	Kontos, AG	en
dc.contributor.author	Stergiopoulos, T	en
dc.contributor.author	Tsiminis, G	en
dc.contributor.author	Raptis, YS	en
dc.contributor.author	Falaras, P	en
dc.date.accessioned	2014-03-01T01:28:40Z
dc.date.available	2014-03-01T01:28:40Z
dc.date.issued	2008	en
dc.identifier.issn	0020-1693	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18909
dc.subject	DSSCs	en
dc.subject	Photoelectrochemistry	en
dc.subject	Raman scattering	en
dc.subject	Triiodide	en
dc.subject.classification	Chemistry, Inorganic & Nuclear	en
dc.subject.other	SENSITIZED SOLAR-CELLS	en
dc.subject.other	RESONANCE RAMAN	en
dc.subject.other	NANOCRYSTALLINE TIO2	en
dc.subject.other	EXCITED-STATE	en
dc.subject.other	DYE	en
dc.subject.other	IODINE	en
dc.subject.other	FILMS	en
dc.subject.other	SPECTROSCOPY	en
dc.subject.other	COMPLEXES	en
dc.subject.other	SPECTRA	en
dc.title	In situ micro- and macro-Raman investigation of the redox couple behavior in DSSCS	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.ica.2007.06.018	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.ica.2007.06.018	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	Solar cells based on nanocrystalline TiO2 sensitized by dyes that contain poly-pyridyne rings have been examined by in situ micro- and macro-Raman spectroscopy under positive and negative bias. Four modes in the low frequency range appear for nearly short-circuit conditions and are attributed to the vibrations of triiodide, bound on the oxidized form of the dye. The intensity and frequency of these modes depend on the applied potential and their behavior is correlated with characteristic regions of the current-potential curves. Our results are supported by polarized Raman experiments and basic theoretical simulations. (c) 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	Inorganica Chimica Acta	en
dc.identifier.doi	10.1016/j.ica.2007.06.018	en
dc.identifier.isi	ISI:000254426600022	en
dc.identifier.volume	361	en
dc.identifier.issue	3	en
dc.identifier.spage	761	en
dc.identifier.epage	768	en