Natural dyes extracted from leaves, fruits, and roots of Piper Betel, Adonidia Merrillii and Morinda Citrifolia as photosynthesizers for dye sensitized solar cells

International Conference on Innovative Research - ICIR EUROINVENT 2019

Eop, T.S.^1 ; Azhari, A.W.^1^2 ; Halin, D.S.C.^2

Water Research Group (WAREG), School of Environmental Engineering, Universiti Malaysia Perlis, Arau, Perlis

02600, Malaysia^1

Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Material Engineering, Universiti Malaysia Perlis, Arau, Perlis

02600, Malaysia^2

关键词: Counter electrodes;    Electrochemical characteristics;    Fourier transform infra red (FTIR) spectroscopy;    Layered systems;    Morinda citrifolia;    Natural dye;    Ultra violet;    Working electrode;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/572/1/012113/pdf
DOI  :  10.1088/1757-899X/572/1/012113

来源: IOP

【 摘 要 】

In this study, the fabrication of dye sensitized solar cell (DSSCs) using the leaves of Piper Betel (PB), fruits of Adonidia Merrillii (AM) and roots of Morinda Citrifolia (MC) and combination of these three dyes (PB/AM/MC) had been conducted. Fabrication of the DSSCs was conducted using layered system, which involved sandwiching of a working electrode (TiO2 semiconductor) and counter electrode (platinum paste) The chemical and electrochemical characteristic of natural dye extracts were determined using pH meter, Fourier transform infrared (FT-IR) spectroscopy and ultra violet (UV-Vis) spectroscopy. From the study, it was observed that PB dyes showed the highest efficiencies (0.0712 %) followed by the combination dyes (0.0065 %) while AM and MC dyes showed the lowest efficiency (1.0×10-9% and 0% respectively.