Dyes extracted from Hibiscus Sabdariffa flower and Pandannus amaryllifolius leaf as natural dye sensitizer by using an alcohol-based solvent

Abstract

The efficiency improvement of Dye sensitized solar cells (DSSC), the fabrication of DSSC by using metal-free organic natural dyes with a different type of solvents for the extraction of dye sensitizer was investigated. The metal-free organic Dye which comes from anthocyanin and chlorophyll dyes were dissolved by using different solvents, which are ethanol, methanol and mixture of ethanol and methanol. Anthocyanin dye was extracted from the petals of Hibiscus Sabdariffa (Roselle), and chlorophyll dye was extracted from the epidermal leaves of Pandannus amaryllifolius (Pandan). The purpose of using different solvents from alcohol-based was to determine which solvents that produce the highest effect in term of efficiency for DSSC. To confirm which solvents that produce the highest efficiency to the DSSC, the photovoltaic measurement was conducted, and the data was collected. From the photovoltaic analysis, the J-V characteristics under illumination are recorded. The sample that used anthocyanin dye extracted from Roselle flower diluted with methanol solvent gave the highest efficiency which is 0.0005% with the following parameters – Voc = 0.419 V, Jsc = 0.0057 mA/cm2 and FF = 0.24. Meanwhile, the sample that used chlorophyll dye extracted from Pandan leaves diluted with a mix of ethanol and methanol solvents gave the highest efficiency which is 0.00014% with the following parameters - Voc = 0.347 V, Jsc = 0.0016 mA/cm2 and FF = 0.25.

Anthocyanin: A Natural Dye Extracted from Hibiscus Sabdariffa (L.) for Textile and Dye Industries

“…Characterized dye sensing of solar cell using roselle dried extract and performed different instrumentation. All of these studies proved and performed only focused on future sustainability in their own motive [5,6]. However, the green chemical environment important to bags towards future generation, parallely to ful ll the global requirements also important so, in this present study have evolved to bring the requirement as well as the natural sustainability by well-equipped manner [6].…”

Optimization of Polysulfone/Polyethylene Glycol (PSf/PEG) Casted Solution Composition as a Membrane Electrolyte in a Dye-Sensitized Solar Cell (DSSC)

“…DSSC is one of the technologies that can convert light energy into electrical energy using the photovoltaic effect [4]. DSSC attracts the attention of researchers because of its advantages in simple and economical fabrication, as well as the availability of materials that are easy to find compared to Silicon Solar Cell (SSC) [5]. DSSC has four essential parts in its basic structure: the working electrode or photoanode, dye sensitizer, electrolyte, and comparison electrode or photocathode [6].…”