APPLICATION OF CHLORELLA SP. CHLOROPLAST AS LIGHT SENSITIZER FOR DYE SENSITIZED SOLAR CELLS

• Main Author: TRIANITA ( NIM : 10510007) ; Pembimbing Zeily Nurachman, D.Sc, KARTIKA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/18790
• Institution: Institut Teknologi Bandung

Dye-sensitized solar cells (DSSC) is a device that can convert sunlight energy to electrical <br /> <br /> <br /> <br /> <br /> <br /> <br /> energy. The use of regular foodstuff as light harvesting agent (sensitizer) for DSSC results in <br /> <br /> <br /> <br /> <br /> <br /> <br /> competition between energy and foodstuff. The present research, Chlorella sp. chloroplast as <br /> <br /> <br /> <br /> <br /> <br /> <br /> non-foodstuff is examined whether it can be used for a sensitizer of solar cell. To obtain <br /> <br /> <br /> <br /> <br /> <br /> <br /> chloroplast, Chlorela sp. cells were cultivated in GM 10% modification medium, harvested, <br /> <br /> <br /> <br /> <br /> <br /> <br /> homogenized, and centrifuged. Chloroplast obtained is characterized by SDS-PAGE, and the <br /> <br /> <br /> <br /> <br /> <br /> <br /> fotovoltaic effects of solar cell sensitized by the chloroplast were measured by a solar <br /> <br /> <br /> <br /> <br /> <br /> <br /> simulator. The results of the research showed that the mass of wet chloroplast obtained from <br /> <br /> <br /> <br /> <br /> <br /> <br /> 1 g wet cells was 0.0749 g. Protein complexes of the chloroplast identified by SDS-PAGE <br /> <br /> <br /> <br /> <br /> <br /> <br /> showed protein bands of 68, 54.7, and 26.5 kDa indicating PsaA/PsaB of photosystem I (PS <br /> <br /> <br /> <br /> <br /> <br /> <br /> I), AtpA of ATP synthase, and apoprotein of light harvesting complexes (LHC) II, <br /> <br /> <br /> <br /> <br /> <br /> <br /> respectively. Solar cell sensitized by Chlorella sp. chloroplast exhibited values of short <br /> <br /> <br /> <br /> <br /> <br /> <br /> circuit current density (JSC) 0.004 mA/cm2, open circuit voltage (VOC) of 0.06 V, current <br /> <br /> <br /> <br /> <br /> <br /> <br /> density at maximum power (Jmpp) of 0,0016 mA/cm2, voltage at maximum power (Vmpp) of <br /> <br /> <br /> <br /> <br /> <br /> <br /> 0.0375 V, fill factor (FF) of 0.329, and efficiency of 6.94 × 10–5%.