Renewable energy source using natural dye molecular for dye-sensitized solar cells extracted from dragon fruit and pomegranate / Farid Amri Md Fuad

Md Fuad, Farid Amri (2016) Renewable energy source using natural dye molecular for dye-sensitized solar cells extracted from dragon fruit and pomegranate / Farid Amri Md Fuad. Degree thesis, Universiti Teknologi MARA.


Dye-sensitized solar cell (DSSC) is a new class of green photovoltaic cell based on photosynthesis principle in nature. DSSCs can be fabricated using different type of dyes as sensitizers which extracted from the nature and our life, such as flowers, leaves, fruits, traditional Chinese medicines, and beverages. In this project, Dragon fruit or the scientific name is Hylocereus Undatus, and Pomegranate with the scientific name of Punica Granatum were analyzed and tested for natural dye sensitizer. The natural dye extracts from these dye sensitizer were characterized Ultraviolet Visible spectroscopy and Fourier Transform Infrared (FTIR) techniques. Three different DSSCs were fabricated using these dyes along with the mixed (co-sensitize) molecular dye sensitizer. The combination of the pomegranate dye and dragon fruit dye have a highest peak of UV-Vis absorption spectra which is 534.34 nm wavelength that was recorded by UV-Vis spectrophotometer. The FTIR technique can show the chemical compound that contain in the dyes. The range between 3000 cm-1 to 3500 cm-1 show the Intermolecular H-bond and sharp absorption between 1600 cm-1 to 1700 cm-1 shows the C=O conjugate vibration. The C-O-C stretching vibration of esters acetates was found at range 900 cm-1 to 1100 cm-1. The three peak that have recorded in the FTIR spectroscopy is, first peak is from 3244.04 cm-1 to 3252.21 cm-1 wavenumber, second peak is from 1629.97 cm-1 to 1638.14 cm-1 wavenumber, and the last peak is from 1033.37 cm-1 to 1061.97 cm-1 wavenumber. Based on all of the result that obtain from, the anthocyanins properties are exist instead exist of carbonyl and hydroxyl group. The performance of all the three natural dyes as sensitizers in DSSC was calculated by open circuit voltage (Voc), short circuit current density (Jsc), energy conversion efficiency (η), and fill factor (FF). The highest open-circuit voltage (Voc) is 0.65 V, the fill factor (FF) is 0.58, the power conversion efficiency (η) is 0.46% and the short circuit photocurrent densities (Jsc) is 1.22 mA/cm2 of the mixed dyed cell that were measured using solar simulator, respectively.


Item Type: Thesis (Degree)
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Md Fuad, Farid Amri
Subjects: S Agriculture > SB Plant culture > Fruit and fruit culture
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Devices for production of electricity by direct energy conversion > Solar batteries. Solar cells
Divisions: Universiti Teknologi MARA, Pulau Pinang > Permatang Pauh Campus > Faculty of Electrical Engineering
Keywords: Dye-sensitized solar cell (DSSC), photovoltaic cell, dyes, natural dye sensitizer, pomegranate, dragon fruit
Date: 2016
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