TNPSC Thervupettagam

Lead Free Photodetector

February 26 , 2026 17 hrs 0 min 11 0
  • Indian researchers have developed novel lead-free and eco-friendly photo detector in February 2026.
  • The device was developed by the International Advanced Research Centre for Powder Metallurgy and New Materials, Hyderabad, in collaboration with IIT Hyderabad under the Department of Science and Technology.
  • It is based on a double perovskite material called Cs2AgBiBr6 and uses low-cost carbon electrodes.
  • The photodetector is lead free, self-powered, and shows a strong response to visible light.
  • It retains more than 90 % performance even after 60 days and is made using a one-step coating method at room temperature.
  • It can be used in consumer electronics, security systems, industrial monitoring and biomedical imaging.

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