Clitoria ternatea flower as natural dyes for Dye-sensitized solar cells

Clitoria ternatea flowers have been investigated as a natural sensitizer in Dye-sensitized solar cell (DSSC). Dried C. ternatea flowers ware immersed in ethanol for 48 hours in dark room to obtain anthocyanin pigments. We compared the photovoltaic performance of the sensitizers with Titanium dioxide...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-10, Vol.619 (1), p.12049
Main Authors: Hayat, Azwar, Putra, A. Erwin E., Amaliyah, Novriany, Pandey, Shyam. S.
Format: Article
Language:English
Subjects:
Anthocyanins
Circuits
Dye-sensitized solar cells
Dyes
Energy conversion efficiency
Ethanol
Flowers
Open circuit voltage
Photoanodes
Photovoltaic cells
Pigments
Scattering
Short circuit currents
Titanium dioxide
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Summary:Clitoria ternatea flowers have been investigated as a natural sensitizer in Dye-sensitized solar cell (DSSC). Dried C. ternatea flowers ware immersed in ethanol for 48 hours in dark room to obtain anthocyanin pigments. We compared the photovoltaic performance of the sensitizers with Titanium dioxide (TiO2) only and TiO2 with scattering layers. C. ternatea dyes have higher Power Conversion Efficiency (PCE) when applied in TiO2 with scattering layers compared to standard TiO2 semiconductors. Scattering layer (SL) has increased the light path inside the photo-anode film that doubled the short-circuit current (Jsc) and enhanced the open circuit voltage (Voc) compared to TiO2 based cell without the SL. In conclusion, from the result, higher electron injections can be achieved by light management on photo-anode film with scattering layers as one of strategy to enhance the efficiency for further low cost and environment-friendly solar cell.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/619/1/012049