In-situ investigation of adsorption of dye and coadsorbates on TiO 2 films using QCM-D, fluorescence and AFM techniques

Handle URI:
http://hdl.handle.net/10754/598601
Title:
In-situ investigation of adsorption of dye and coadsorbates on TiO 2 films using QCM-D, fluorescence and AFM techniques
Authors:
Harms, Hauke A.; Tétreault, Nicolas; Voitchovsky, Kislon; Stellacci, Francesco; Grätzel, Michael
Abstract:
Simultaneous adsorption of dye molecules and coadsorbates is important for the fabrication of high-efficiency dyesensitized solar cells, but its mechanism is not well understood. Herein, we use a quartz crystal microbalance with dissipation technique (QCM-D) to study dynamically and quantitatively the sensitization of TiO2 in situ. We investigate dye loading for a ruthenium(II) polypyridyl complex (Z907), of a triphenylamine-based D-π-A dye (Y123), and of a ullazine sensitizer (JD21), as well as the simultaneous adsorption of the latter two with the coadsorbate chenodeoxycholic acid. By combining the QCM-D technique with fluorescence measurements, we quantify molar ratios between the dye and coadsorbate. Furthermore, we will present first studies using liquid-phase AFM on the adsorbed dye monolayer, thus obtaining complementary microscopic information that may lead to understanding of the adsorption mechanism on the molecular scale. © 2013 SPIE.
Citation:
Harms HA, Tétreault N, Voitchovsky K, Stellacci F, Grätzel M (2013) In-situ investigation of adsorption of dye and coadsorbates on TiO 2 films using QCM-D, fluorescence and AFM techniques . Physical Chemistry of Interfaces and Nanomaterials XII. Available: http://dx.doi.org/10.1117/12.2024194.
Publisher:
SPIE-Intl Soc Optical Eng
Journal:
Physical Chemistry of Interfaces and Nanomaterials XII
KAUST Grant Number:
KUS-C1-015- 21
Issue Date:
11-Sep-2013
DOI:
10.1117/12.2024194
Type:
Conference Paper
Sponsors:
This work was supported by the Swiss National Science Foundation (Grant No. 200020-134856/1) and partially based onwork supported by the Center for Advanced Molecular Photovoltaics (Award No KUS-C1-015- 21), made by KingAbdullah University of Science and Technology (KAUST). We thank S. M. Zakeeruddin, C. Yi and J. Delcamp forsynthesizing the sensitizers, as well as F. Andersson at Q-Sense (Biolin Scientific) and B. Kasemo at ChalmersUniversity for assistance during the initial measurements and for discussions. Hauke Harms thanks Biolin Scientific for aconference travel grant. MG thanks the European Science Foundation for research support under the MesolightAdvanced Research Grant (Mesolight).
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Full metadata record

DC FieldValue Language
dc.contributor.authorHarms, Hauke A.en
dc.contributor.authorTétreault, Nicolasen
dc.contributor.authorVoitchovsky, Kislonen
dc.contributor.authorStellacci, Francescoen
dc.contributor.authorGrätzel, Michaelen
dc.date.accessioned2016-02-25T13:32:55Zen
dc.date.available2016-02-25T13:32:55Zen
dc.date.issued2013-09-11en
dc.identifier.citationHarms HA, Tétreault N, Voitchovsky K, Stellacci F, Grätzel M (2013) In-situ investigation of adsorption of dye and coadsorbates on TiO 2 films using QCM-D, fluorescence and AFM techniques . Physical Chemistry of Interfaces and Nanomaterials XII. Available: http://dx.doi.org/10.1117/12.2024194.en
dc.identifier.doi10.1117/12.2024194en
dc.identifier.urihttp://hdl.handle.net/10754/598601en
dc.description.abstractSimultaneous adsorption of dye molecules and coadsorbates is important for the fabrication of high-efficiency dyesensitized solar cells, but its mechanism is not well understood. Herein, we use a quartz crystal microbalance with dissipation technique (QCM-D) to study dynamically and quantitatively the sensitization of TiO2 in situ. We investigate dye loading for a ruthenium(II) polypyridyl complex (Z907), of a triphenylamine-based D-π-A dye (Y123), and of a ullazine sensitizer (JD21), as well as the simultaneous adsorption of the latter two with the coadsorbate chenodeoxycholic acid. By combining the QCM-D technique with fluorescence measurements, we quantify molar ratios between the dye and coadsorbate. Furthermore, we will present first studies using liquid-phase AFM on the adsorbed dye monolayer, thus obtaining complementary microscopic information that may lead to understanding of the adsorption mechanism on the molecular scale. © 2013 SPIE.en
dc.description.sponsorshipThis work was supported by the Swiss National Science Foundation (Grant No. 200020-134856/1) and partially based onwork supported by the Center for Advanced Molecular Photovoltaics (Award No KUS-C1-015- 21), made by KingAbdullah University of Science and Technology (KAUST). We thank S. M. Zakeeruddin, C. Yi and J. Delcamp forsynthesizing the sensitizers, as well as F. Andersson at Q-Sense (Biolin Scientific) and B. Kasemo at ChalmersUniversity for assistance during the initial measurements and for discussions. Hauke Harms thanks Biolin Scientific for aconference travel grant. MG thanks the European Science Foundation for research support under the MesolightAdvanced Research Grant (Mesolight).en
dc.publisherSPIE-Intl Soc Optical Engen
dc.subjectAdsorptionen
dc.subjectChenodeoxycholic aciden
dc.subjectCoadsorbateen
dc.subjectCoadsorptionen
dc.subjectDSCen
dc.subjectDye-sensitized solar cellsen
dc.subjectMolecular filmen
dc.subjectQCM-Den
dc.titleIn-situ investigation of adsorption of dye and coadsorbates on TiO 2 films using QCM-D, fluorescence and AFM techniquesen
dc.typeConference Paperen
dc.identifier.journalPhysical Chemistry of Interfaces and Nanomaterials XIIen
dc.contributor.institutionLaboratory of Photonics and Interfaces, Lausanne, Switzerlanden
dc.contributor.institutionEcole Polytechnique Federale de Lausanne, Lausanne, Switzerlanden
kaust.grant.numberKUS-C1-015- 21en
kaust.grant.fundedcenterCenter for Advanced Molecular Photovoltaics (CAMP)en
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