Guwahati, May 25 -- Reported by Roopak Goswami

Guwahati: Researchers at the Indian Institute of Technology (IIT) Guwahati have developed a new light-emitting nanomaterial that could help combat fake currency, forged documents, and counterfeit products through advanced security markings that are extremely difficult to copy.

The research team has created tiny glowing crystals, known as perovskite nanocrystals, that can produce highly specific light patterns that are invisible to the naked eye and impossible to replicate using conventional printing or imaging techniques.

The study was carried out by Saikat Bhaumik and P.K. Giri from IIT Guwahati's Department of Physics, along with research scholars Latika Juneja and Garima Choudhary. The ...