Potential Application of Chlorophyll from Syzygium paniculatum as Electrode Dye in Solar Cells

Abstract

- This study aims to determine the chlorophyll content and chlorophyll dye on the nano TiO 2 electrode morphology. Color variations and good chlorophyll storage are dyes for coloring Nano TiO 2 electrodes on solar cells. The ingredient for making chlorophyll is the leaves of the Syzygium paniculatum plant. To prove that red shoot leaves' chlorophyll content is high, we will compare it with papaya leaves (Carica papaya) and cassava leaves (Manihot utilissima). This experiment uses a variation group with three experimental variables. The first variable is the variation of Syzygium paniculatum leaves with red color, green color, and a 50% red and 50% green mixture, as a comparison using cassava leaves and papaya leaves. The second variable is the solvent composition consisting of distilled water: chloroform: and 96% ethanol. The first solvent composition, in sequence, namely 3: 2: 1, and the second solvent composition, namely 3: 2: 1.5. The third variable is the storage time, 24 hours, 18 hours, and 12 hours. The results observed were chlorophyll levels, chlorophyll b levels, total chlorophyll levels, and the Nano TiO 2 electrode with chlorophyll dye. The results showed that leaf color and solvent composition significantly affect chlorophyll content and the electrode coating morphology. The results showed that the green leaf color and the 3: 2: 1,5 solvent compositions had the highest chlorophyll content, namely chlorophyll-a of 32.548 mg/L, chlorophyll b of 56.327 mg/L, and total chlorophyll of 88.750 mg/L. Moreover, the morphology with EDX analysis showed C, O, Ti, and Mg at 12 hours of storage. This study recommends using green leaf color from Syzygium paniculatum leaves with a solvent composition of 3:2:1.5 for DSSC.