NIT Rourkela scientists develop lead-free light-emitting materials for security, sensors

Bhubaneswar, Oct 28 (UNI) Scientists at the National Institute of Technology (NIT) Rourkela, in collaboration with researchers from IIT Guwahati, IIT Bombay and NISER Bhubaneswar, have developed lead-free light-emitting materials that respond to changes in temperature and moisture, opening up potential applications in anti-counterfeiting technology, humidity sensors and safer lighting systems. The research focuses on bismuth-based organic-inorganic hybrid compounds that exhibit changes in their light-emission properties under ultraviolet (UV) exposure. The materials could offer an alternative to lead-based photoluminescent compounds, which are associated with environmental and health risks. Published in the Journal of Materials Chemistry C, the study demonstrates that…