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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