Effect of Chlorophyll Concentration Variations from Extract of Papaya Leaves on Dye-Sensitized Solar Cell
In this paper, extract of papaya leaves are used as a
natural dye and combined by variations of solvent concentration
applied on DSSC (Dye-Sensitized Solar Cell). Indonesian geographic
located on the equator line occasions the magnitude of the potential
to develop organic solar cells made from extracts of chlorophyll as a
substitute for inorganic materials or synthetic dye on DSSC material.
Dye serves as absorbing photons which are then converted into
electrical energy. A conductive coated glass layer called TCO
(Transparent Conductive Oxide) is used as a substrate of electrode.
TiO2 nanoparticles as binding dye molecules, redox couple iodide/
tri-iodide as the electrolyte and carbon as the counter electrode in the
DSSC are used. TiO2 nanoparticles, organic dyes, electrolytes, and
counter electrode are arranged and combined with the layered
structure of the photo-catalyst absorption layer. Dye absorption
measurements using a spectrophotometer at 400-800 nm light
spectrum produces a total amount of chlorophyll 80.076 mg/l. The
test cell at 7 watt LED light with 5000 lux luminescence was
obtained Voc and Isc of 235.5 mV and 14 μA, respectively.
 A. Quan, “Degradation of the Solar Cell Dye Sensitizer N719 Preliminary Building of Dye-Sensitized Solar Cell”, Thesis, Denmark: Roskilde University, 2006.
 S. Manan, “Solar Energy as an Efficient Alternative Energy Resource in Indonesia”, Thesis, Department of Electrical Engineering UNDIP, Semarang, unpublished, 2009.
 Z. Xia, “Characterization of the Dye-Sensitized Solar Cell’. Degree of Bachelor of Science in Chemistry. Worcester Polytechnic Institute. (10), 2009.
 O. Regan, M. Gratzel. “A Low Cost, High Efficiency Solar Cell Based on Dye-Sensitized Colloidal TiO2 Films”. Nature 353. (737–739), 1991.
 M. Syahid, et al., “Recent Advancement in Natural Dye Application: A Review”. Journal of Cleaner Production. (1–22), 2013.
 S. H. Pramono, E. Maulana. T. Utomo, “Organic Solar Cell based on extraction of Papaya (Carica papaya) and jatropha (Ricinuscommunis) leaves in DSSC (Dye Sensitized Solar Cell)”, Proceeding of International Conf. on Edu. Tech and Science, pp. 248-251, 2013.
 R. Wang, K. Hashimoto, Nature 388, pp. 431, 1997.
 M. Gratzel, Nature 409, pp. 575, 2001.
 T. Ohtsuka, T. Otsuki, J. Electroanal. Chem. 473, pp. 272, 1999.
 I. K. Ding, J. M. Kyriazi, N. L. Cevey-Ha, et.al, “Deposition of hole-transport materials in solid-state dye-sensitized solar cells by doctor-blading”, Organic Electronic vol. 11, pp. 1217-1222, 2011.
 S. S. Kim, et al, “Annealing-free fabrication of P3HR:PCBM solar cell via simple brush painting”, Solar Energy Material and Solar CellJ. vol. 94, pp. 171-175, 2010.
 V. W. W. Yam, WOLEDs and Organic Photovoltaics.New York: Springer-Verlag, 2010, ch. 1.