The Effect Intensity of Light Irradiation on Photosuperkapasitor Performance Based FTO/ TiO2-ZnO-Beta ch-Qc/ C/ Al/ BaTiO3-PVDF/ Al Device
M Diantoro, M Z Masrul, T Suprayogi, N Mufti, E Latifah
State University Of Malang
Abstract
Dye Sensitized Solar Cells (DSSC) based on TiO2 material are very potential because of several advantages such as high photostability, high thermal stability and very effective for Dye absorption. However, TiO2 still has limitation in terms of electron mobility. It needs to be composited with other materials for electron mobility. Material that has a potential is ZnO material. beside that ZnO also has the same band gap range as TiO2. In this condition, the composite system of TiO2-ZnO becomes more potential to be used as a DSSC electrode. In the Photosupercapacitor system, with a high source of electrical energy from DSSC, a Supercapacitor unit with sufficient capacitance is also needed. In this case, the selection of capacitor electrodes is very influential. In this study, electrodes based on the BaTiO3-PVDF composite system were used. With the dielectric permittivity reaching 1700, BaTiO3 material is the main candidate for the supercapacitor dielectric material. But BaTiO3 has limitations such as fragile and unflexible nature. This limitation can be overcome in combination with the PVDF polymer which has advantage in terms of its flexible properties. Besides that, the dielectric permittivity is the most optimal compared to other types of polymers. This study examined the effect of irradiation duration and light intensity on Photosupercapacitor performance. The results showed that the length of light irradiation, photoelectric current (Isc) of DSSC (photosupercapacitor system) and capacitance (C) of Supercapacitor (photosupercapacitor system) had an exponential relation. Characterization of light intensity on photoelectric current (Isc) and potential difference (Voc) of DSSC (Photosupercapacitor system) had a linear relation. The same result also shown in the characterization of light intensity on potential difference (Vc) and capacitance (C) of Supercapacitor (Photosupercapacitor System) which produced linear relations.
Keywords: DSSC-Supercapacitor, Photosupercapacitor, TiO2, ZnO, PVDF,BaTiO3, Capacitance.
Topic: Renewable Energy