Synthetic Dyes as Photosensitizers for Dye Sensitized Solar Cells: A Comparative Study

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dc.contributor.authorSarangika, H.N.M.
dc.contributor.authorRuveshana, J.P.I.B.R.
dc.contributor.authorDissanayake, M.A.K.L.
dc.contributor.authorSenadeera, G.K.R.
dc.date.accessioned2019-05-28T04:25:49Z
dc.date.available2019-05-28T04:25:49Z
dc.date.issued2019
dc.description.abstractThe dye is an essential component of the Dye Sensitized Solar Cells (DSSC) and methods to improve the efficiency of DSSCs have been investigated over the last two decades. The most successful synthetic dyes are based on ruthenium complexes. However, ruthenium based compounds are relatively expensive. Finding more economical synthetic organic dyes with comparable characteristics of ruthenium is therefore beneficial. In the present study, six different organic dyes namely 1,10-Phenonthroline, Dimethyl yellow, Bromocresol purple, Alizarin red, Chlorophenol red and Cresol red were selected as sensitizers. Nanostructured TiO2 films were dipped in ethanolic solutions of each dye for 24 hours and DSSCs were assembled with the configuration of FTO/TiO2/electrolyte/Pt counter electrode. A liquid electrolyte composed of Tetrapropylammonium iodide (Pr4N+I-), Iodine (I2), Ethylene carbonate and acetonitrile with optimized composition was employed as the electrolyte. Conversion efficiency of the fabricated DSSCs was tested under the illumination of 100 mW cm-2. The highest overall conversion efficiency of 0.421% with 60% of fill factor was obtained for the dye sensitized solar cells sensitized with Alizarin red. Further investigations on structural modifications of Alizarin red will be studied in order to enhance the efficiency of DSSCs.en_US
dc.identifier.isbn9789550481255
dc.identifier.urihttp://erepo.lib.uwu.ac.lk/bitstream/handle/123456789/669/471.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.subjectMaterial Sciencesen_US
dc.subjectMineral Sciencesen_US
dc.titleSynthetic Dyes as Photosensitizers for Dye Sensitized Solar Cells: A Comparative Studyen_US
dc.title.alternativeInternational Research Conference 2019en_US
dc.typeOtheren_US
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International Research Conference of UWU-2019