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Title of Journal: J Inorg Organomet Polym

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Abbravation: Journal of Inorganic and Organometallic Polymers and Materials

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Springer US

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DOI

10.1007/bf01911283

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1574-1451

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Cosensitization Promoted Light Harvesting for Dye

Authors: R Elangovan P Venkatachalam
Publish Date: 2015/01/10
Volume: 25, Issue: 4, Pages: 823-831
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Abstract

Cosensitization of two sensitizers on core/shell TiO2–Nb2O5 with Ta2O5 scattering layer photoanode arranged in different sequences are investigated for application to dye sensitized solar cells DSSCs The cosensitization of N719/Coumarin and CdS–CdSe quantum dots/Coumarin exhibited enhanced photovoltaic performances for the pertinent cells compared with the cell made from corresponding individual sensitizers In the present investigation cosensitization by N719/Coumarin showed better photovoltaic performance and have the power conversion efficiency PCE of 99  while the performances of cells with the individual sensitizers are 82  N719 and 69  Coumarin respectively The PCE of DSSC with CdS–CdSe/Coumarin cosensitization is found to be 87  whereas the performances of DSSCs with the individual sensitizers are 45  CdS–CdSe and 69  Coumarin respectively These results indicated that the cosensitization of sensitizers promoted the light harvesting efficiency of DSSCs as compared the cells with the consequent individual sensitizersThe authors are thankful to the authorities of Annamalai University for providing all necessary facilities to carried out the present work successfully We also thank the anonymous referees who significantly contributed to improving the contents of the manuscript

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