کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1229098 1495231 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Potential natural sensitizers extracted from the skin of Canarium odontophyllum fruits for dye-sensitized solar cells
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Potential natural sensitizers extracted from the skin of Canarium odontophyllum fruits for dye-sensitized solar cells
چکیده انگلیسی


• Natural dye was extracted from Canarium odontophyllum.
• Dye constituents were separated by column chromatography.
• DSSCs were sensitized with the constituents.
• Improved performances of DSSCs using constituents.

Possibility of use of dye extract from skin samples of a seasonal, indigenous fruit from Borneo, namely Canarium odontophyllum, in dye sensitized solar cells (DSSCs) are explored. Three main groups of flavonoid pigments are detected and these pigments exhibit different UV–vis absorption properties, and hence showing different light harvesting capabilities. When applied in DSSCs. The detected pigment constituents of the extract consist of aurone (maritimein), anthocyanidin (pelargonidin) and anthocyanidin (cyanidin derivatives). When tested in DSSC, the highest conversion efficiency of 1.43% is exhibited by cyanidin derivatives, and this is followed by conversion efficiencies of 0.51% and 0.79% for aurone and pelargonidin, respectively. It is shown that individual pigments, like cyanidin derivatives and pelargonidin, exhibit higher power conversion efficiency when compared to that of C.odontophyllum skin pigment mixture (with a conversion efficiency of only 0.68%). The results indicate a possibility of masking effects of the pigments when used as a mixture. The acidification of C.odontophyllum skin pigments with concentrated hydrochloric acid improves the conversion efficiency of the mixture from 0.68% to 0.99%. The discussion in this paper will draw data and observations from the variation in absorption and adsorption properties, the HOMO–LUMO levels, the energy band gaps and the functional group compositions of the detected flavonoids.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 138, 5 March 2015, Pages 596–602
نویسندگان
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