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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3360
Title: Electro-optical properties of new anthracene based organic dyes for dye-sensitized solar cells
Authors: Justin Thomas, K. R.
Singh P.
Baheti A.
Hsu Y.-C.
Ho K.-C.
Lin J.T.
Published in: Dyes and Pigments
Abstract: Dipolar compounds containing anthracene-based triarylamine donor and cyanoacrylic acid acceptor were synthesized and characterized by electro-optical measurements. The optical spectra of the dyes are dominated by a charge transfer transition. This band is red-shifted and increased in intensity on elongation of conjugation by the introduction of bithiophene or dithienylbenzothiadiazole moiety. Similarly, the oxidation potentials of the dyes are shifted anodically on extension of the conjugation attributable to the reduction in the interaction between the triarylamine and acceptor segments. Theoretical calculations revealed the charge transfer to occur between anthracene and triarylamine moieties. However, in the benzothiadiazole containing dye the charge transfer is observed between the amine and the acceptor segment. Dye-sensitized solar cells fabricated using these dyes showed moderate efficiency which is highly dependent on the nature of the conjugation bridge. © 2011 Elsevier Ltd. All rights reserved.
Citation: Dyes and Pigments (2011), 91(1): 33-43
URI: https://doi.org/10.1016/j.dyepig.2011.02.006
http://repository.iitr.ac.in/handle/123456789/3360
Issue Date: 2011
Keywords: Absorption spectra
Anthracene
Benzothiadiazole
Dye-sensitized solar cell
Theoretical calculation
Triarylamine
ISSN: 1437208
Author Scopus IDs: 57203389297
56311408100
26638669500
7401583510
56962715200
7501725859
Author Affiliations: Justin Thomas, K.R., Organic Materials Lab, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247 667, India
Singh, P., Organic Materials Lab, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247 667, India
Baheti, A., Organic Materials Lab, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247 667, India
Hsu, Y.-C., Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
Ho, K.-C., Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
Lin, J.T., Institute of Chemistry, Academia Sinica, 115 Nankang, Taipei, Taiwan
Funding Details: This research was supported by funding from Department of Science and Technology ( DST/TSG/ME/2010/27 ) at New Delhi and the Indian Institute of Technology Roorkee (Initiation Grant) to KRJT. Appendix
Corresponding Author: Justin Thomas, K. R.; 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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