Is it possible for the ayurvedic kamala fruit to capture the sun’s energy?

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admin November 5, 2021
Updated 2021/11/05 at 2:58 PM

The dye extract from the Kamala fruit was utilised by a research team at the Central University of Jharkhand to produce a low-cost, non-toxic sensitiser for dye-sensitized solar cells. However, there is still a lot of work to be done before the efficacy can be determined. The dye-sensitized solar cell (DSSC) is a low-cost solar cell from the thin-film solar cell family (converting solar energy into electricity) It is based on a photoelectrochemical system with a semiconductor produced between a photo-sensitized anode and an electrolyte. The Grätzel cell is a modern-day variant of a dye solar cell. Attractive characteristics include: It’s easy to manufacture with traditional roll-printing processes, it’s semi-flexible and semi-transparent, so it can be used for a number of purposes that glass-based systems can’t, and the majority of the materials required are low-cost.

The red Kamala tree, also known as senduri, rohini, or rori among tribal groups in Jharkhand, is a semi-evergreen woody spurge shrub that produces fruit only in the spring. This is the first time that the dye has been utilised in a solar cell. The pericarp of the Kamala fruit was used to extract natural colour. The dye was removed and utilised to create a low-cost, non-toxic sensitiser for DSSCs or Grätzel cells, which convert solar energy directly into electricity. A natural dye may be easily derived from an inedible source, such as the untreated Kamala fruit, utilising a very low-cost process, and so can give the greatest alternative to the hazardous and expensive synthetic dye used in solar cells. Natural extracts from fruits and vegetables such as Jamun, pomegranate, spinach, beetroot, hibiscus, green algae, and black carrot have been used as solar cell dye for several years and have proven to be both scalable and sustainable.

 

Source: The Hindu

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