The Effect of Graphite Concentration in TiO2 Semiconductors on Efficiency of Dye Sensitized Solar Cells (DSSC) Using Dye Melastoma malabathricum L Fruit Extract. EKSAKTA [Internet]. 2021 Mar. 27 [cited 2026 Aug. 5];22(1):10-7. Available from: http://eksakta.ppj.unp.ac.id/index.php/eksakta/article/view/258