Abstract :
: Binahong with a red trunk is known to contain betalain which has the potential to be used as DSSC. Therefore, theoretical research was conducted on the potential content of betalain in binahong with a red trunk using computational methods. This research was conducted using density functional theory (DFT) with the B3LYP functional and with a base set of 6-311G(d). The band gap value of HOMO-LUMO was obtained as a reference for the effectiveness of binahong with a red trunk as a DSSC material. The results of this study indicate the band gap of betalain is 3.152685477 eV. The band gap shows how easy it is for betalain to excite electrons, from the band gap it can be concluded that betalain is a material that has a very high potential for effectiveness as a material for making DSSC.
Keywords :
Band Gap, Betalain, DSSC, HOMO, LUMO.References :
- Setyono, A. E. And Kiono B. F. T. 2021. Dari Energi Fosil Menuju Energi Terbarukan: Potret Kondisi Minyak dan Gas Bumi Indonesia Tahun 2020 – 2050. Jurnal Energi Baru & Terbarukan. Vol. 2, No. 3, pp 154-162.
- Pamungkas, G. and Sanjaya, I G. M. 2013. A Theoretical Studies to Determine Band Gap of Conjugated Porphyrin with Calcium Metal Using Density Functional Theory (DFT). UNESA Journal of Chemistry. 54-61.
- Yusuf, M. R., 2017. Analisis Mie Dengan Penambahan Ekstrak Daun Binahong (Andredera Cordifolia).
- Sanjaya, I, Gusti, M., Ismono., Samik., Ishma, E. F. I., Mufid, F. M. 2021. Perbedaan Karakter Fisiko-Kimia Ekstrak Daun Binahong Berbatang Merah Dan Daun Binahong Berbatang Hijau. Indonesian Chemistry and Application Journal. 16-20.
- Pawar, N., Shinde, M., & Junna, L. (2018). Stabilization of Food Colourant and Antimicrobial Activity in Fruit Extracts of Basella Rubra. L. International Journal of Pharmacognosy and Phytochemical Research. 43-47.
- 2016. An overview of Density-Functional-Theory (DFT) for students.
- 2019. theoretical Modification of Cyanidin as Sensitizers in Dye-Sensitized Solar Cell (DSSC) Using Rhodanine Acetic Acid as Electron Withdrawing Group. Jurnal Kimia dan Pendidikan Kimia. Vol. 4, No.1. 35-41.
- Cramer, C. J. 2004. Essential of Computational Chemistry Second Edition; Theories and Models. Department of Chemistry and Supercomputing Institute. The University of Minnesota. USA.
- Shen, X., Nunes, J. P. F., Yang, J. Jobe, R. K. 2019 Femtosecond gas-phase mega-electron-volt ultrafast electron diffraction.
- Sari, Y., Santoni A., Elisabet. 2018. Comparative Test of Color Stability between Betalain Pigments of Red Dragon Fruits and Anthocyanin Pigmentsfrom Tamarillo Fruit at Various pH. Journal of Scientific and Applied Chemistry. 107-112.
- Byranvand, M. M., Kharat N. A., Badiel A., Bazargan M. H. 2012. Electron Transfer in Dye-Sensitized Solar Cells. Journal of Optoelectronics and Biomedical Materials. 49-57.