INFLUENCE OF CONCENTRATION OF RIND EXTRACT OF RED DRAGON FRUIT (HYLOCEREUS COSTARICENSIS) AGAINST THE DSSC EFFECIENCY
Abstract: Research on
utilization of rind extracts of red dragon fruit (hylocereus costaricensis) as
sensitizer for dye sensitized solar cell (DSSC) has been conducted by reviewing
influence of the concentration against the DSSC efficiency. Characterization on
optical absorption at various concentrations and identification of functional
groups, each using an UV-Vis spectrometer and Fourier transform infra red
(FTIR), have done to the dye in the form of the extracts. The dye
characterization result on optical absorption at various concentration shows
that the optical absorption at range of wavelength 320-760 nm has the peak of
absorbance tend to increase with increasing the concentration. Therefore the
dye is capable to role as a sunlight absorber. Meanwhile, infra red absorption
spectrum obtained from FTIR results indicate the presence of functional groups
O-H, C=O, C=C, C-O, and C-H aromatic. Results of current-voltage
characterization of DSSC show an increase in maximum power and efficiency with
increasing concentration.
Keywords: absorbance, DSSC
efficiency, dye concentration, rind of red dragon fruit (H. Costaricensis)
Author: A. Setiawan, I.
Fatayati, H. Aliah
Journal Code: jpfisikagg160005

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