Table of Contents
Journal of Biophysics
Volume 2015 (2015), Article ID 510467, 8 pages
http://dx.doi.org/10.1155/2015/510467
Research Article

Higher Performance of DSSC with Dyes from Cladophora sp. as Mixed Cosensitizer through Synergistic Effect

1Environmental and Life Sciences Programme, Universiti Brunei Darussalam, Jalan Tungku Link BE1410, Brunei Darussalam
2Physical and Geological Sciences Programme, Universiti Brunei Darussalam, Jalan Tungku Link BE1410, Brunei Darussalam
3Institute for Biodiversity and Environmental Research, Universiti Brunei Darussalam, Jalan Tungku Link BE1410, Brunei Darussalam
4UBD∣IBM Centre, Universiti Brunei Darussalam, Jalan Tungku Link BE1410, Brunei Darussalam
5Chemistry Programme, Universiti Brunei Darussalam, Jalan Tungku Link BE1410, Brunei Darussalam
6Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Jalan Tungku Link BE1410, Brunei Darussalam

Received 21 July 2014; Revised 24 December 2014; Accepted 25 December 2014

Academic Editor: Janos K. Lanyi

Copyright © 2015 Andery Lim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Chlorophyll and xanthophyll dyes extracted from a single source of filamentous freshwater green algae (Cladophora sp.) were used to sensitize dye sensitized solar cells and their performances were investigated. A more positive interaction is expected as the derived dyes come from a single natural source because they work mutually in nature. Cell sensitized with mixed chlorophyll and xanthophyll showed synergistic activity with improved cell performance of 1.5- to 2-fold higher than that sensitized with any individual dye. The effect of temperature and the stability of these dyes were also investigated. Xanthophyll dye was found to be more stable compared to chlorophyll that is attributed in the ability of xanthophyll to dissipate extra energy via reversible structural changes. Mixing the dyes resulted to an increase in effective electron life time and reduced the process of electron recombination during solar cell operation, hence exhibiting a synergistic effect.