Organic Dyes Containing Coplanar Dihexyl-Substituted Dithienosilole Groups for Efficient Dye-Sensitised Solar Cells
Joint Authors
Thampi, K. Ravindranathan
Lyons, Ciaran
Rathi, Neelima
Dev, Pratibha
Byrne, Owen
Surolia, Praveen K.
Maji, Pathik
MacElroy, J. M. D.
Yella, Aswani
Magner, Edmond
English, Niall J.
Graetzel, Michael
Source
International Journal of Photoenergy
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-05-04
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
A chromophore containing a coplanar dihexyl-substituted dithienosilole (CL1) synthesised for use in dye-sensitised solar cells displayed an energy conversion efficiency of 6.90% under AM 1.5 sunlight irradiation.
The new sensitiser showed a similar fill factor and open-circuit voltage when compared with N719.
Impedance measurements showed that, in the dark, the charge-transfer resistance of a cell using CL1 in the intermediate-frequency region was higher compared to N719 (69.8 versus 41.3 Ω).
Under illumination at AM 1.5G-simulated conditions, the charge-transfer resistances were comparable, indicative of similar recombination rates by the oxidised form of the redox couple.
The dye showed instability in ethanol solution, but excellent stability when attached to TiO2.
Classical molecular dynamics indicated that interactions between ethanol and the dye are likely to reduce the stability of CL1 in solution form.
Time-dependent density functional theory studies were performed to ascertain the absorption spectrum of the dye and assess the contribution of various transitions to optical excitation, which showed good agreement with experimental results.
American Psychological Association (APA)
Lyons, Ciaran& Rathi, Neelima& Dev, Pratibha& Byrne, Owen& Surolia, Praveen K.& Maji, Pathik…[et al.]. 2017. Organic Dyes Containing Coplanar Dihexyl-Substituted Dithienosilole Groups for Efficient Dye-Sensitised Solar Cells. International Journal of Photoenergy،Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1168421
Modern Language Association (MLA)
Lyons, Ciaran…[et al.]. Organic Dyes Containing Coplanar Dihexyl-Substituted Dithienosilole Groups for Efficient Dye-Sensitised Solar Cells. International Journal of Photoenergy No. 2017 (2017), pp.1-14.
https://search.emarefa.net/detail/BIM-1168421
American Medical Association (AMA)
Lyons, Ciaran& Rathi, Neelima& Dev, Pratibha& Byrne, Owen& Surolia, Praveen K.& Maji, Pathik…[et al.]. Organic Dyes Containing Coplanar Dihexyl-Substituted Dithienosilole Groups for Efficient Dye-Sensitised Solar Cells. International Journal of Photoenergy. 2017. Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1168421
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168421