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Effect of Dye Loading Time on the Perfomance of Natural Dye-Sensitized
Solar Cell Based on Zinc Oxide and Stargoose Berry Dye
Mohammad Azman bin Razali
Supervisor: Dr Hasiah Binti Salleh
Bachelor of Applied Science (Electronics and Instrumentation Physics)
School of Ocean Engineering
The main purpose of this research is to fabricate and characterize dye-sensitized solar
cells (DSSC) which consist of nature dyes of Sauropus androgynus and zinc oxide
(ZnO) materials. Natural dye that contained in the Sauropus androgynus dye leaves
was chlorophyll (Chlo). These DSSC are fabricated according to ITO/dyes/Carbon.
Power conversion efficiency (PCE) of the ITO/dyes/C DSSC that can absorb over a
broad range of light spectrum were studied. Absorption spectra of ZnO and Chlo
solutions were measured using UV-Vis spectrophotometer while FTIR is used to
characterize functional group of ZnO and Chlo. The results shows the optical
absorption for ZnO and Chlo, range of 230-400 nm and 200-600 nm respectively. The
functional group observed in Chlo are C-H bend at 918.12 cm -1 , C-H rock at 1396.46
cm -1 and C=N stretch at 2252.86 cm -1 . The PCE of the DSSCs of ZnO/dye/C was
changed with dye loading time under radiation 100 mW/m 2 .
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