Optical properties of natural dyes on the dye-sensitized solar cells (DSSC) performance

8th International Conference on Physics and its Applications

Pratiwi, D.D.^1 ; Nurosyid, F.^1 ; Supriyanto, A.^1 ; Suryana, R.^1

Department of Physics, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Jl. Ir. Sutami 36A, Kentingan Jebres Surakarta

57126, Indonesia^1

关键词: Characteristic curve;    Counter electrodes;    I-V characteristic curve;    Incident photon-to-current efficiencies;    Measurement system;    Optical absorption properties;    UV-Vis spectrophotometers;    Working electrode;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012007/pdf
DOI  :  10.1088/1742-6596/776/1/012007

来源: IOP

【 摘 要 】

This study reported several natural dyes for application in dye-sensitized solar cells (DSSC). This study aims was to determine the effect of optical absorption properties of natural dyes on efficiency of DSSC. The sandwich structure of DSSC consist of TiO2as working electrode, carbon layer as counter electrode, natural dyes as photosensitizer, and electrolyte as electron transfer media. The natural dyes used in this experiment were extracted from dragon fruit anthocyanin, mangosteen peels anthocyanin, and red cabbage anthocyanin. The absorbance of dyes solutions and the adsorption of the dye on the surface of TiO2were characterized using UV-Vis spectrophotometer, the quantum efficiency versus wavelength was characterized using incident photon-to-current efficiency (IPCE) measurement system, and the efficiency of DSSC was calculated using I-V meter. UV-Vis characteristic curves showed that wavelength absorption of anthocyanin dye of red cabbage was 450 - 580 nm, anthocyanin of mangosteen peels was 400 - 480 nm, and anthocyanin of dragon fruit was 400 - 650 nm. Absorption spectra of the dye adsorption on the surface of TiO2which was resulted in the highest absorbance of red cabbage anthocyanin. IPCE characteristic curves with anthocyanin dye of red cabbage, mangosteen peels anthocyanin, and dragon fruit anthocyanin resulted quantum efficiency of 0.058%; 0.047%; and 0.043%, respectively at wavelength maximum about 430 nm. I-V characteristic curves with anthocyanin dye of red cabbage, mangosteen peels anthocyanin, and dragon fruit anthocyanin resulted efficiency of 0.054%; 0.042%; and 0.024%, respectively.