Penggunaan Ekstrak Antosianin Kol Merah Sebagai Fotosensitizer Pada Sel Surya Tio2 Nanokristal Tersensitisasi Dye

Akhiruddin Maddu • Mahfuddin Zuhri • Irmansyah Irmansyah
Journal article Makara Journal of Technology • November 2007

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(Bahasa Indonesia, 7 pages)


The use of Red Cabbage’s anthocyanine extract as a photosensitizer on a Dye-Sensitized Nanocrystalline TiO2Solar Cell. A solid-state dye-sensitized nanocrystalline TiO2 solar cell utilizing anthocyanin extract form red cabbageas photosensitizer was fabricated. The solar cell was formed in sandwich structure, which two electrodes sandwichingpolymer electrolyte containing a redox couple (I-/I3-). One of the electrodes, namely working electrode, TiO2 layer onTCO (transparent conducting oxide) coated glass substrate was sensitized with anthocyanin dye as electron donor in thesystem. Another electrode was a carbon sheet as a counter electrode. Gel electrolyte based on PEG (polyethyleneglycol) containing a redox couple (I-/I3-) used instead of liquid electrolyte in this photoelectrochemical cell. Twofabricated cells have an active area of 1 cm2 were soaked with anthocyanine dye for 1 hr and 24 hrs, respectively. Thecells were tested by irradiation with halogen lamp of 24 Watt with intensity 4 mW/cm2 at a distance 30 cm. The testingresults of the cells show an ideal I-V characteristic with output parameters: open circuit voltage (VOC) of 500 mV, shortcircuit current (ISC) of 5,6 μA and 7,2 μA for each cells, fill factor (FF) of 48% for both cells, energy conversion (η) of0.023 % and 0,055 % for the cells with 1 hr and 24 hrs dye soaked, respectively.




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