Sri Sumardiasih, Sri
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Time Variation of Insertion Cu On TiO2 Nanoparticles Layer Through The Electroplating Method In Dye-Sensitized Solar Cell (DSSC) Obina, Wilfrida M; Supriyanto, Agus; Cari, C; Sumardiasih, Sri; Septiawan, Trio Y.
Journal of Physics: Theories and Applications Vol 1, No 2 (2017): Journal of Physics: Theories and Applications
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jphystheor-appl.v1i2.19312

Abstract

Copper (Cu) is a conductive metal. Insertion of copper on a TiO2 active layer is the right choice in the effort to improve Dye-Sensitized Solar Cell (DSSC) performance. Electroplating methods were used in this study to insert copper in the TiO2 layer. The device of DSSC used in this study is natural dye Moringa Oleifera, TiO2-Cu electrode, the counter electrode of Pt and electrolyte from NaI. The peak absorbance of dye is at wavelength 415 nm and maximum efficiency is 0,093% from the time variation electroplating of 25 s. There is increase efficiency from TiO2 to TiO2-Cu electrode with time variation of electroplating. It is shown that insertion of copper in the TiO2 nanoparticles layer improves the performance of DSSC.
Fabrication of dye Rhoeospathacea with concentration variation in dye-sensitized solar cells (DSSC) Sumardiasih, Sri; Supriyanto, Agus; Cari, C
Journal of Physics: Theories and Applications Vol 1, No 1 (2017): Journal of Physics: Theories and Applications
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jphystheor-appl.v1i1.4722

Abstract

Dye-sensitized solar cell (DSSC) is a device that directly converts visible light into electrical energy. In this work we used dye was extracted from Rhoeo spathacea. A natural dye was directly mixed with TiO2 anatase to obtain dyed titanium dioxide which can be used as photoanode for DSSC by varying the volume of dye. The first variation is 2 ml dye mixed with 1 ml of TiO2, and the second variation is 3 ml dye mixed with 1 ml of TiO2. The absorbance spectra of the dye and dye titanium dioxide have been investigated by spectroscopy UV-Visible Lambda 25 and the conversion efficiency of dye titanium dioxide used Keithley 2602A meter. The DSSC based on dye titanium dioxide with varying volume of dye showed that the efficiency of the the second variation is 0,033% which is higher than the first variation (0,023%) as obtained from I-V characterization.