ROURKELA: Researchers from the National Institute of Technology Rourkela (NIT Rourkela), in collaboration with researchers from IIT Guwahati, IIT Bombay, and NISER Bhubaneswar, have developed new materials that can emit different colours of light under ultraviolet (UV) light exposure. These materials respond to changes in heat and moisture and can have applications in security systems, sensors and lighting technologies. The research investigated…