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Determination The Electrical and Optical Properties of Chlorophyll of
Imperata Cylindrica for Organic Solar Cell Application
Nik Syazreen Binti Yunus
Supervisor: Mdm. Hasiah Binti Salleh
Bachelor of Applied Science (Electronics and Instrumentation Physics)
School of Ocean Engineering
Organic solar cells (OSCs) have gain huge interest among researchers due to its
efficiency and environmental friendly. The chlorophyll (Chlo) was extracted from
cogon grass leaves (Imperata cylindrica) using ethanol. The integration molecules of
chlorophyll by oxidation polymerization process using Ferric Chloride, FeCl3 as a
catalyst is to enhance its electrical performance. The bilayers thin film of Chlo and i-
Chlo were deposited using spin coater and deep coating method. The absorption
spectrum of Chlo and i-Chlo showed a wide range of light absorption which is 400-
700nm and 200-300nm. The functional group observed in i-Chlo showed a new peak
appeared in between 2000-2500cm -1 as C=C molecules. The reduction of intensity of
–CH, -OH, and –CO peaks indicating the molecules of Chlo are combined with each
other. Due to the changes of molecules structure, the electrical conductivity of i-Chlo
thin film is higher than the Chlo thus, enhance the performance of chlorophyll.
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