Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3303
Full metadata record
DC FieldValueLanguage
dc.contributor.authorKarthik D.-
dc.contributor.authorKumar V.-
dc.contributor.authorJustin Thomas K.R.-
dc.contributor.authorLi C.-T.-
dc.contributor.authorHo K.-C.-
dc.date.accessioned2020-10-06T14:26:15Z-
dc.date.available2020-10-06T14:26:15Z-
dc.date.issued2016-
dc.identifier.citationDyes and Pigments (2016), 129(): 60-70-
dc.identifier.issn1437208-
dc.identifier.urihttps://doi.org/10.1016/j.dyepig.2016.02.009-
dc.identifier.urihttp://repository.iitr.ac.in/handle/123456789/3303-
dc.description.abstractSix organic sensitizers containing thieno[3,4-d]imidazole chromophore were synthesized and characterized by photophysical, electrochemical and photovoltaic studies. N-alkylated derivatives containing thiophene substituents showed blue-shifted absorption when compared to the dyes containing 4-tert-butyl-phenyl group attributable to the disturbance in the conjugation due to tilting in the structure. However, the former dyes exhibited red-shifted absorption when anchored on TiO2 due to enhanced aggregation. All dyes displayed negative solvatochromism in the absorption spectra indicating the charge transfer character and polar ground state. They exhibited low oxidation potentials than the dyes, known in the literature, which possess imidazole-based donor. Among the dyes, a dye containing bithiophene in the conjugation and thiophenes on thieno[3,4-d]imidazole nucleus showed best photovoltaic performance with η = 2.78%, Jsc = 7.91 mA cm-2 and ff = 0.63. Electrochemical impedance spectroscopy studies on the devices established the relationship between the functional chromophores on the electron injection and electron recombination kinetics. © 2016 Elsevier Ltd. All rights reserved.-
dc.language.isoen_US-
dc.publisherElsevier Ltd-
dc.relation.ispartofDyes and Pigments-
dc.subjectDye-sensitized solar cells-
dc.subjectElectrochemical impedance spectra-
dc.subjectOptical spectra-
dc.subjectOrganic dyes-
dc.subjectTDDFT computations-
dc.subjectThieno[3,4-d]imidazole-
dc.titleSynthesis and characterization of thieno[3,4-d]imidazole-based organic sensitizers for photoelectrochemical cells-
dc.typeArticle-
dc.scopusid57195605812-
dc.scopusid57203774869-
dc.scopusid57203389297-
dc.scopusid55507636700-
dc.scopusid56962715200-
dc.affiliationKarthik, D., Organic Materials Chemistry, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247 667, India-
dc.affiliationKumar, V., Organic Materials Chemistry, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247 667, India-
dc.affiliationJustin Thomas, K.R., Organic Materials Chemistry, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247 667, India-
dc.affiliationLi, C.-T., Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan-
dc.affiliationHo, K.-C., Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan-
dc.description.fundingFinancial support from CSIR (Ref. No. 02/(0230)/15/EMR-II dated 05-06-2015), New Delhi to KRJT is gratefully acknowledged and DST for HRMS facility via FIST Program to the Chemistry Department. DK thanks UGC, New Delhi for research fellowship. Appendix A-
dc.description.correspondingauthorJustin Thomas, K.R.; Organic Materials Chemistry, Department of Chemistry, Indian Institute of Technology RoorkeeIndia; email: krjt8fcy@iitr.ac.in-
Appears in Collections:Journal Publications [CY]

Files in This Item:
There are no files associated with this item.
Show simple item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.