Role of Clathrin Protein to Increase Electric Current on Dye-Sensitized Solar Cell (DSSC) Based Natural Dyes

Trihutomo, Prihanto; Soeparman, Sudjito; Widhiyanuriyawan, Denny; Yuliati, Lilis

doi:10.1088/1757-899x/546/7/072010

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…e highest efficiency value on DSSC was the addition of 75% protein concentration with 1.465% efficiency value. e increase in the value of efficiency in DSSC is due to the cow brain protein molecule added to DSSC which fills the gaps or empty spaces in TiO 2 because the clathrin protein derived from cow brain is zwitterions that is able to act as an electron bridge between porous TiO 2 particles so as to reduce obstacles from the flow of electric current resulting in increased efficiency [31]. Electron bridges are able to occur because of the ability of proteins to do both acid and base reactions at once.…”

Section: Efficiency Testingmentioning

confidence: 99%

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

Widhiyanuriyawan

Trihutomo

Soeparman

et al. 2020

The Scientific World Journal

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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.

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Section: Efficiency Testingmentioning

confidence: 99%

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

Widhiyanuriyawan

Trihutomo

Soeparman

et al. 2020

The Scientific World Journal

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First report of two Aspergillus species isolated from mangrove forest in Ecuador

Sacheri-Viteri

Fernández‐Cadena

Moreira

et al. 2021

lgr

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Mangroves forests are located in tropical and subtropical regions, its adaptation and distribution in coastal regions is influenced by temperature, humidity, tidal and saline fluctuations. Therefore, there are exposed to multiple environmental fluctuations. Mangroves are inhabited by wildlife but also is supported by a diverse community of microorganisms, including fungi. Several fungi in mangroves have multiple ecological roles as saprotrophs or as an opportunistic pathogen, many of them are also used in the industry, as the genus Aspergillus, that are important in the biomedicine, industrial and environmental applications. In this study we isolated species of fungi from mangrove stems and propagules. They were identified by both morphological and by its molecular characteristics. Here, we report the first isolated of Aspergillus niger and Aspergillus aculeatus from mangrove in Ecuador. Research such as these highlights the importance to determine the role of fungi in mangrove ecosystem.

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Role of Clathrin Protein to Increase Electric Current on Dye-Sensitized Solar Cell (DSSC) Based Natural Dyes

Cited by 2 publications

References 7 publications

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

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

First report of two Aspergillus species isolated from mangrove forest in Ecuador

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