STUDI ELEKTROKIMIA EKSTRAK BETALAIN UMBI BIT SEBAGAI PEWARNA ALAMI DSSC (DYE SENSITIZED SOLAR CELL)
ELECTROCHEMICAL STUDY OF BEETROOT BETALAIN EXTRACT AS NATURAL DYES DSSC (DYE SENSITIZED SOLAR CELL)
Abstract
This research was conducted to explore and utilize fresh beetroot as raw material for natural dyes in DSSC. DSSC (Dye Sensitized Solar Cell) is a photovoltaic cell that can convert sunlight into electricity using environmentally friendly raw materials and low production costs. In this study, DSSC was made using the doctor blade method using natural dyes derived from betalain tuber extract. beet. Natural dyes were chosen because they are easy to obtain, as well as cheap and environmentally friendly. The betalain from the beetroot is macerated with ethanol as a solvent. Characterization of natural dyes was carried out using UV-Visible spectrophotometry to determine the wavelength absorption, electrochemical characterization of dyes was carried out using cyclic voltammetry, and to determine the efficiency of the DSSC was carried out by I – V characterization. In this study, an absorption wavelength of 534 nm was produced which showed the uptake of the pigment betasianin. The electrochemical characterization showed that the energy of the HOMO (Highest Occupied Molecular Orbital) in the dye was -5.00 eV. The LUMO (Lowest Unoccupied Molecular Orbital) energy in dye is -3.71 eV. Analysis of the energy bandgap (energy gap) of the dye yields 1.29 eV, meaning that the prepared dye can be used as a sensitizer on the DSSC. I-V characterization showed that the efficiency value of DSSC with natural dye for beetroot was 0.004%. These results indicate that the natural dye extract of beetroot betalain can be used as a natural dye in DSSC.
Key words: betalain,DSSC,electrochemical
References
Kementrian Energi dan Sumber Daya Mineral. 2019. Kajian Indonesia Energy Outlook. Pusat Data dan Informasi Energi dan Sumber Daya Mineral.
J. Wu, Z. Lan, J. Lin. (2014). Electrolytes in Dye-Sensitized Solar Cells. American Chemical Society, Chemical Review .
N. Sekar, V. Y. Gehlot (2010). Metal complex dyes for dye-sensitized solar cells : recent development. Resonance , 19-31.
J. Gong, J. Liang, K. Sumathy. (2012). Review on dye sensitized solar cells (DSSCs) : fundamental concepts and novel materials . Renew Sustain Energy , 48-60.
M. R Narayan. (2012). Review : dye sensitized solar cels based on natural photosensitizer . Renew Sustain Energy , 08-15.
E. Guzela, B. S. Arslana, V. Durmaza, etc. (2018). Photovoltaic performance and photostability of anthocyanins, isoquinoline alkaloids and betalains as natural sensitizers for DSSCs. . Solar Energy , 34-41.
A. Hagfeldt, G. Boschloo, L. Sun, L. Kloo, H. Pettersson. (2010). Dye-Sensitized Solar Cells . Chemical Review , 6595-6663.
P. I. Djurovich, E. I. Mayo, S.R. Forrest, M. E. Thompson. (2009). Measurement of the lowest unoccupiedmolecular orbital energies of molecular organic semiconductors organic electronics. Org Electron , 515-520.
J. J.Fu, Y, A. Duan, J. Z. Zhang, etc. (2014). Theoretical Investigation Of Novel Phenothiazinebased D–Π–A Conjugated Organic Dyes As Dye-Sensitizer In Dye-Sensitized Solar Cells. . Compute Theory Chem , 145-153.
M. Raftani, T. Abram, M. N. Bennani, etc. (2020). Theoretical study of new conjugated compounds with a low bandgap for bulk heterojunction solar cells: DFT and TD-DFT study. .Result in Chemistry .
A. Fitri, A. T. Benjelloun, M. Benzakour, etc. (2014). Theoretical investigation of new thiazolothiazole-based D-π-A organic dyes for efcient dye-sensitized solar cell. . Spctrochim Acta , 646-654.
A. S. Al-Horaibi, M. T. Ighamdi, S. T. Gaikwad, etc. (2018). Comparison and Determine Characteristics Potentials of HOMO/ LUMO and Relationship between Ea and Ip for Squaraine Dyes (SQ1, SQ2) by Using Cyclic Voltammetry and DFT/TD-DFT. . MoroccoanJournal of Chemistry , 404-413.
D. Zhang, S. M. Lanier, J. A. Downing, J. L. Avent, J. Lum, J. L. McHale. (2008). Betalain pigments for dye-sensitized solar cells. Journal of Photochemistry adnd Photobiology , 72-80.
C. P. Sagita, (2021). Enhancing the Conversion Efficiency of Dye Sensitized Solar Cells based on Betalain Natural Dye as The Potential Photosensitizer : A Review. . Indonesian Journal Natural Pigment , 1-9.
J. Hou, B. Zhang, D. Li, etc. (2019). Enabling Superior Stretchable Resistive Switching Memory via Polymer Functionalized Graphene Oxide Nanosheets. Royal Society of Chemistry .
D. J. Coutinho , G. C. Faria , R. M. Faria , H. V. Seggern. (2015). Dynamics of energy level alignment at ITO/organic semiconductor interfaces. Organic Electronics , 408-414.
S. Kavitha, K. Praveena, M. Lakhsmi. (2017). A new method to evaluate the feasibility of a dye in DSSC application . International Joural Energy .
K. Sharma, V. Sharma, and S. Sharma. (2018). Dye-Sensitized Solar Cells: Fundamentals and Current Status,” . Nanoscale Res Lett .
P. Setiarso, N. P. Sari. (2021). Graphene Oxide-Paraffin-Nanobentonite as Working Electrode for Cyclic Voltammetry Analysis for Nicotinic Acid. Asian Journal of Chemistry , 757-761.
F. C. Stintzing, R. Carle, (2007). Betalains- emerging prospects for food scientists. Tends Food Sci. Technology, 514 – 525
Abstract Views: 340
PDF Downloads: 436
