Two natural dyes containing anthocyanin are extracted from sour and sweet pomegranate from Iran. Spectrophotometric evaluation of the natural dyes in solution and on a TiO2 substrate was carried out to assess changes in the status of the natural dyes. The results show that the natural dyes indicate buthochromic shift on the TiO2 substrates. Dye-sensitized solar cells (DSSCs) are fabricated to determine the photovoltaic behaviour of each dye and the mixture of extracts. Such evaluations demonstrate conversion efficiencies of 0.73%, 1.57% and 0.91% for sour pomegranate, sweet pomegranate and mixed extract respectively. Natural dyes are suitable alternative photosensitizers for DSSCs.
Original Source [2]
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/fruit-extract-dyes-photosensitizers-solar-cells
[2] http://www.currentscience.ac.in/Volumes/109/05/0953.pdf
[3] http://admin.indiaenvironmentportal.org.in/category/author/mozhgan-hosseinnezhad
[4] http://admin.indiaenvironmentportal.org.in/category/author/siamak-moradian
[5] http://admin.indiaenvironmentportal.org.in/category/author/kamaladin-gharanjig
[6] http://admin.indiaenvironmentportal.org.in/category/journal/current-science
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-cells
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/iran
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/research
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy