Biology, Medicine, & Natural Product Chemistry
Vol 4, No 1 (2015)

Krokot Extract (Portulaca Oleracea. L) as Natural Light-harvesting pigments for Dye-Sensitized Solar Cells (DSSCs) : Influence of Dye Acidity

Cici Nurfaizah (Sunan Kalijaga State Islamic University Yogyakarta)
Didik Krisdiyanto (Sunan Kalijaga State Islamic University Yogyakarta)
Khamidinal Khamidinal (Sunan Kalijaga State Islamic University Yogyakarta)
Sudarlin Sudarlin (Sunan Kalijaga State Islamic University Yogyakarta)

Article Info

Publish Date
01 Apr 2015

Abstract

Dye-sensitized solar cells (DSSCs) was fabricated using natural dyes extracted from krokot (Portulaca Oleracea. L). The effect of dye acidity was investigated on natural pH extract, 5.00, 4.00 and 3.00 of pH. The efficiency and stability DSSCs as a function of the dye acidity was studied. The result of the UV-Vis shows that the absorption of wave-length from dye extract of krokot is located in the visible region with the absorbance peak in 410.5 nm and 664.5 nm which are the peak of chlorophyll. The efficiency of extract krokot dye sensitized solar cells was decreasing  6.88 x 10-3 %  to  0.42 x 10-3 % when pH of the dye was adjusted from 6.27 to 3.00. DSSCs stability was also decreased look for efficiency loss from 5.27% to 97.49% in the same conditions.

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Journal Info
Biology, Medicine, & Natural Product Chemistry
Website

Abbrev

BIOMEDICH

Publisher

Universitas Islam Negeri Sunan Kalijaga Yogyakarta

Subject

Biochemistry, Genetics & Molecular Biology Medicine & Pharmacology Public Health

Description

BIOLOGY, MEDICINE, & NATURAL PRODUCT CHEMISTRY, this journal is published to attract and disseminate innovative and expert findings in the fields of plant, animal, and microorganism secondary metabolite, and also the effect of natural product on biological system as a reference source for ...