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Proceedings Paper

Temperature effect of natural organic extraction upon light absorbance in dye-sensitized solar cells
Author(s): Suriati Suhaimi; Siti Zubaidah Mohamed Siddick; Vithyacharan Retnasamy; Mohamad Halim Abdul Wahid; Nor Azura Malini Ahmad Hambali; Mukhzeer Mohamad Shahimin
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Paper Abstract

Natural organic dyes contain pigments which when safely extracted from plants have the potential to be used as a sensitizer while promising a low-cost fabrication, environmental friendly dye-sensitized solar cells (DSSCs). Ardisia, Bawang Sabrang, Harum Manis mango, Oxalis Triangularis and Rosella showed different absorption peaks when the extraction process were carried out at different temperatures. Hence, these were used as the basis to determine the conversion efficiency against the dyes extracting temperature. In this study, all dyes extracted in water have shown the best performance at a temperature of 100°C except for Harum Manis mango, while in ethanol, the optimum temperature was obtained between the room temperature, 25°C and 50°C. The absorption spectrum in water showed a broader absorption wavelength vis-à-vis ethanol solvent that resulted in the absorption peak for Ardisia, Harum Manis mango and Rosella between 450 nm and 550 nm. The highest conversion efficiency is observed to be achieved by Oxalis Triangularis extracted in water solution at 100°C, which was approximately 0.96% which corresponds to the broader absorbance trends in the literature. Thus, the optimum condition for extracting temperature for dyes in water and ethanol is room temperature and boiling points of water. Hence, Ardisia, Bawang Sabrang, Harum Manis mango, Oxalis Triangularis and Rosella can be an as alternative source for photosensitizer, and the impacts of temperature upon the light absorbance can be further investigated to produce the ultimate natural dye based solar cells.

Paper Details

Date Published: 23 February 2017
PDF: 7 pages
Proc. SPIE 10099, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VI, 100991H (23 February 2017); doi: 10.1117/12.2257057
Show Author Affiliations
Suriati Suhaimi, Univ. Malaysia Perlis (Malaysia)
Siti Zubaidah Mohamed Siddick, Univ. of Malaya (Malaysia)
Vithyacharan Retnasamy, Univ. Malaysia Perlis (Malaysia)
Mohamad Halim Abdul Wahid, Univ. Malaysia Perlis (Malaysia)
Nor Azura Malini Ahmad Hambali, Univ. Malaysia Perlis (Malaysia)
Mukhzeer Mohamad Shahimin, National Defence Univ. of Malaysia (Malaysia)

Published in SPIE Proceedings Vol. 10099:
Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VI
Alexandre Freundlich; Laurent Lombez; Masakazu Sugiyama, Editor(s)

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