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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3338
Title: Co-sensitization promoted light harvesting for organic dye-sensitized solar cells using unsymmetrical squaraine dye and novel pyrenoimidazole-based dye
Authors: Chang J.
Lee C.-P.
Kumar D.
Chen P.-W.
Lin L.-Y.
Thomas K.R.J.
Ho K.-C.
Published in: Journal of Power Sources
Abstract: The pure organic dyes are investigated recently because of its high extinction coefficient and relatively low cost. In order to enhance the performance of the organic dyes, co-sensitization strategy is applied. The co-sensitization by the absorption of SQ2/5c shows enhanced photovoltaic performance for the pertinent DSSCs, which leads to a broader light harvesting window (400-750 nm) and a higher overall efficiency of 6.24% while the performances of DSSCs with the individual dyes are 5.33% (5c) and 3.98% (SQ2), respectively. Furthermore, the overall efficiency can be further improved to 6.71% with the incorporation of chenodeoxycholic acid (CDCA). In addition, the incident photon-to-current conversion efficiency (IPCE) and UV-visible absorption spectra are also used to explain and support the behavior of the co-sensitized solar cells. The investigation of the long-term stability of the DSSC based on cosensitization of SQ2/5c dyes with the use of binary ionic liquid is performed. The DSSC with the cosensitization strategy possesses an unfailing durability up to 1000 h. © 2013 Elsevier B.V. All rights reserved.
Citation: Journal of Power Sources (2013), 240(): 779-785
URI: https://doi.org/10.1016/j.jpowsour.2013.04.075
http://repository.iitr.ac.in/handle/123456789/3338
Issue Date: 2013
Publisher: Elsevier B.V.
Keywords: Co-adsorbate
Co-sensitization
Dye-sensitized solar cell
Organic dyes
ISSN: 3787753
Author Scopus IDs: 23968068100
55050004100
55581439900
56802921000
27967875100
57203389297
56962715200
Author Affiliations: Chang, J., Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
Lee, C.-P., Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
Kumar, D., Organic Materials Lab, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Chen, P.-W., Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
Lin, L.-Y., Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
Thomas, K.R.J., Organic Materials Lab, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Ho, K.-C., Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan, Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
Funding Details: Financial supports from the National Science Council of Taiwan and the Council of Scientific and Industrial Research, India are greatly appreciated. Some of the instruments used in this study were made available through the financial support of the Academia Sinica, Nankang, Taipei, Taiwan .
Corresponding Author: Ho, K.-C.; Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan; email: kcho@ntu.edu.tw
Appears in Collections:Journal Publications [CY]

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