Zwitterion Effect of Cow Brain Protein towards Efficiency Improvement of Dye-Sensitized Solar Cell (DSSC)

Autor: Denny Widhiyanuriyawan, Sudjito Soeparman, Prihanto Trihutomo, Lilis Yuliati
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Technology
Materials science
Silicon
Article Subject
Scanning electron microscope
Science
chemistry.chemical_element
Nerve Tissue Proteins
02 engineering and technology
010402 general chemistry
01 natural sciences
General Biochemistry
Genetics and Molecular Biology
law.invention
Electric Power Supplies
X-Ray Diffraction
law
Spectroscopy
Fourier Transform Infrared
Solar cell
Solar Energy
Animals
Fourier transform infrared spectroscopy
Coloring Agents
Absorption (electromagnetic radiation)
General Environmental Science
technology
industry
and agriculture
Brain
General Medicine
Models
Theoretical
021001 nanoscience & nanotechnology
0104 chemical sciences
Quaternary Ammonium Compounds
Dye-sensitized solar cell
chemistry
Chemical engineering
Medicine
Cattle
Solar simulator
0210 nano-technology
Algorithms
Research Article
Visible spectrum
Zdroj: The Scientific World Journal, Vol 2020 (2020)
The Scientific World Journal
ISSN: 2356-6140
DOI: 10.1155/2020/7910702
Popis: Dye-Sensitized Solar Cell (DSSC) constitutes a solar cell using natural dyes from plants that are adsorbed in semiconductors to convert solar energy into electrical energy. DSSC has relatively inexpensive fabrication costs, is easy to produce, works in visible light, and is environmentally friendly. The disadvantage of DSSC is that its efficiency is still low compared to silicon solar cells. This low efficiency is due to obstacles in the flow of electric current on DSSC. In this study, DSSC has been successfully fabricated with the deposition of clathrin protein from cow brain. The zwitterions effect of protein on cow brain is able to reduce resistance and increase electric current on DSSC. The zwitterions effect of cow brain protein that fills gaps or empty spaces between TiO2 particles generates acidic reactions (capturing electrons) and bases (releasing electrons); hence, proteins in the cow brain are able to function as electron bridges between TiO2 molecules and generate an increase in electric current in DSSC. The method used in this research was to deposit clathrin protein from cow brain in a porous TiO2 semiconductor with a concentration of 0%, 25%, 50%, and 75%. Tests carried out on DSSC that have been performed were X-Ray Diffractometer (XRD) testing to determine the crystal structure formed, Fourier Transform Infrared Spectroscopy (FTIR) testing to determine the functional groups formed on DSSC, Scanning Electron Microscopy (SEM) testing to determine the surface morphological characteristics of the DSSC layer, and testing the efficiency using AM 1.5 G solar simulator (1000 W/m2) to determine the efficiency changes that occur in DSSC. From the XRD test results by increasing the concentration of cow brain protein in DSSC, the structure of amino acid crystals also increased and the crystal size increased with the largest crystal size of 42.25 nm at the addition of 75% of cow brain protein. FTIR test results show that the addition of cow brain protein will form functional protein-forming amino groups on DSSC. FTIR analysis shows the sharp absorption of energy by protein functional groups in the FTIR spectrum with increasing concentration of cow brain protein in DSSC. The SEM test results show that the concentration of additional molecules of protein deposited into TiO2 increases and the cavity or pore between the TiO2 molecules decreases. The reduction of cavities in the layers indicates that protein molecules fill cavities that exist between TiO2 molecules. From the results of testing using AM 1.5 G solar simulator (1000 W/m2), the highest efficiency value is 1.465% with the addition of 75% brain protein concentration.
Databáze: OpenAIRE
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