Characterization of Sappanwood Dye (Caesalpinia sappan L.) from Choloroform:Methanol Fraction as Photosensitizer in Dye Sensitized Solar Cell

Authors

  • Suriadi Politeknik Negeri Ujung Pandang https://orcid.org/0009-0004-0198-8820
  • Aisyah UIN Alauddin Makassar
  • Suriani UIN Alauddin Makassar
  • Iswadi Ibrahim Patunrengi Ibrahim Patunrengi UIN Alauddin Makassar

Keywords:

Characterizations, dye sensitised solar cell, sappanwood

Abstract

The electricity crisis in Indonesia is caused by the decreasing supply of fossil fuels for power plants. One solution to overcome this problem is the Dye-sensitized Solar Cell (DSSC) which can convert sunlight into electrical energy by utilizing environmentally friendly organic dyes. This study has succeeded in making and determining DSSC using organic dyes derived from sappanwood extract with pH variations (4, 7, and 10). Each pH level produces efficiency values ​​of 0.01714%, 0.05497% and 0.03174%. VLC with a chloroform: methanol ratio (5:5 and 1:9) was then characterized using UV-Vis, FTIR, and GC-MS instruments. Characterization of sappanwood dye extract using UV-Vis instrument showed absorption at wavelengths of 243, 285, 445, and 541. FTIR instrument provided information on functional groups –OH at wave number 3415.93 cm-1 and C-O-C at wave number 1255.66 cm-1 which are characteristic of isoflavonoid compounds. In addition, GC-MS instrument indicated the possibility of fragment m/z 286 at retention time 9.54 is a brazilin

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Published

2025-06-29

How to Cite

Suriadi, Aisyah, Suriani, & Ibrahim Patunrengi, I. I. P. (2025). Characterization of Sappanwood Dye (Caesalpinia sappan L.) from Choloroform:Methanol Fraction as Photosensitizer in Dye Sensitized Solar Cell. Al-Kimia, 13(1). Retrieved from https://journal.uin-alauddin.ac.id/index.php/al-kimia/article/view/55418

Issue

Vol. 13 No. 1 (2025): JUNE

Section

Article

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