14 hours ago
Kerala University wins patent for eco-friendly solar cell technology
The University of Kerala has bagged a patent for developing a unique, eco-friendly process to create materials used in next-generation solar cells. The breakthrough came through a joint effort by the university's Physics and Botany departments, under its Translational Research and Innovation Centre (TRIC-KU).
The team of inventors includes Dr. R. Jayakrishnan and Dr. Aruna Raj (both from the Physics Department), and Prof. A. Gangaprasad and Priji S. (both from the Botany Department).
They earned the Indian patent for their research on 'A process for the preparation of copper-incorporated Methylammonium Lead Bromide Quantum Dots using Momordica Cochinchinenises (LOUR.) SPRENG. Aril Extract'.
The innovation involves using a natural extract from a fruit called Momordica cochinchinensis (Lour.), commonly known as baby jackfruit, to produce a type of material known as perovskite quantum dots. These tiny particles are used in dye-sensitised solar cells, a promising technology for future solar energy. (Perovskite is a class of compounds which have the same type of crystal structure as Calcium Titanate).
What makes this development special is the green approach: the team managed to improve the material's performance using a plant extract, avoiding the need for high temperatures and saving energy during production. They also replaced 30% of the toxic lead in the material with copper, making it safer for the environment.
Dr. Jayakrishnan said perovskite materials can reach solar energy efficiency levels of around 25%, much higher than traditional silicon solar panels, which usually manage only 15% to 18%. He added the invention is a step forward towards delivering a true carbon neutral process.
The researchers also see potential for their patented process to be used in blue LED applications and other electronics. The university hopes to partner with semiconductor industries for commercial production and scale-up of the eco-friendly technology for optoelectronic applications. The project was supported by the university's non-Plan funding during 2022–2023 fiscal.
