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Human Hairs Could be Used to Make Carbon Nano Dots for Solar Cells

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  • Aug 19, 2021

Many researchers are planning to improve the cutting edge solar technology, and they have created carbon dots with human hair, sourced from a barbershop to make armor for improving performance, according to a new study published in the journal of material chemistry. One of the main researchers was Professor Hongxia Wang who was in collaboration with associate professor Prashant Sonar of QUT center for material science told about the amazing nature of carbon nano-dots and how it could be used to improve the performance of solar cells. The performance of solar cells is very much important to make the most of the energy from the solar cells. The updation is very much important to extract most of the power from the source. In the coming years, the aim is to get a high amount of energy and electricity at a very low cost without burning any fuel, neither spend a lot of amount on it, so perovskites cells are best for it.

Unlike silicon cells, they're made from an easy-to-make compound, and because of their flexibility, they can be used in scenarios like solar-powered clothing, backpacks charging your devices on the go, and even tents that could serve as a source of independent energy. This is the second major investigation that carbon dots made from human hair are being used as a multifunctional material. Last year, Associate Professor Prashant Sonar led a research team that included Center for Materials Science researcher Amandeep Singh Pannu, who converted hairs into carbon nano-dot by first breaking them and burning them at 240-degree centigrade.

Professor Wang had previously discovered that nanostructured carbon materials could be used to improve the performance of a cell.  After adding a solution of carbon dots in the perovskite manufacturing process, Professor Wang's team found that the carbon dots formed a wavy perovskite layer in which the perovskite crystals are surrounded by the carbon dots. "A kind of protective layer is created that protects the perovskite material from moisture or other environmental influences that can damage the materials," said Professor Wang. The study found that perovskite solar cells covered with carbon dots had higher cells energy conversion efficiency and greater stability than perovskite cells without carbon dots.