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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3359
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dc.contributor.authorBaheti A.-
dc.contributor.authorLee C.-P.-
dc.contributor.authorThomas K.R.J.-
dc.contributor.authorHo K.-C.-
dc.date.accessioned2020-10-06T14:26:27Z-
dc.date.available2020-10-06T14:26:27Z-
dc.date.issued2011-
dc.identifier.citationPhysical Chemistry Chemical Physics (2011), 13(38): 17210-17221-
dc.identifier.issn14639076-
dc.identifier.urihttps://doi.org/10.1039/c1cp21714c-
dc.identifier.urihttp://repository.iitr.ac.in/handle/123456789/3359-
dc.description.abstractA new series of metal-free organic dyes containing pyrene and α-cyanoacrylic acid end groups and thiophene, bithiophene, thienylbenzene or thienylfluorene π-linkers were synthesized and characterized by absorption, emission and electrochemical measurements. Time-dependent density functional theoretical calculations were also performed to unravel the nature of the absorption induced electronic excitations. Extension of conjugation in the π-linker by the incorporation of phenyl or fluorene was found to enhance the molar extinction coefficient while the use of thiophene red-shifted the absorption. The longer wavelength absorption peaks found for the dyes were attributed to π-π* transition with a contribution from the charge transfer transition which becomes prominent for the bithiophene bridged derivative. The bithiophene containing dye showed moderate overall light-to-electron conversion efficiency attributable to the favorable absorption and redox properties originating due to the presence of a bithiophene segment. The trends observed for the various dyes in the device performance were rationalized by electron-impedance spectroscopy measurements. © 2011 the Owner Societies.-
dc.language.isoen_US-
dc.relation.ispartofPhysical Chemistry Chemical Physics-
dc.titlePyrene-based organic dyes with thiophene containing π-linkers for dye-sensitized solar cells: Optical, electrochemical and theoretical investigations-
dc.typeArticle-
dc.scopusid26638669500-
dc.scopusid55050004100-
dc.scopusid57203389297-
dc.scopusid56962715200-
dc.affiliationBaheti, A., Organic Materials Lab, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee - 247 667, India-
dc.affiliationLee, C.-P., Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan-
dc.affiliationThomas, K.R.J., Organic Materials Lab, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee - 247 667, India-
dc.affiliationHo, K.-C., Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan-
dc.description.correspondingauthorThomas, K.R.J.; Organic Materials Lab, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee - 247 667, India; email: krjt8fcy@iitr.ernet.in-
Appears in Collections:Journal Publications [CY]

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