IIT Guwahati Innovates Low-Cost Printed Perovskite Photodetector with High Potential in Healthcare and Energy Fields

IIT Guwahati has developed an innovative, low-cost printed perovskite photodetector that holds significant potential for transforming both the healthcare and energy sectors. Check details here

IIT Guwahati Innovates Low-Cost Printed Perovskite Photodetector

Researchers at the Indian Institute of Technology (IIT) Guwahati have developed an innovative and cost-effective photodetector utilizing advanced materials and cutting-edge techniques. This breakthrough technology, which combines formamidinium perovskite with plasmonic nanoparticles, significantly enhances light detection capabilities. The new photodetector shows promising applications in healthcare diagnostics, environmental monitoring, and the solar energy sector.

The research, published in ACS Applied Materials & Interfaces, was led by Prof. P. K. Giri from the Department of Physics, along with his research scholars Debabrata Sahu, Subhankar Debnath, and Sirsendu Ghosal at IIT Guwahati.

Perovskite Photodetector

A photodetector is a vital device that detects light and converts it into electrical signals, serving as a key component in technologies like cameras, medical imaging systems, environmental sensors, and communication networks. Perovskites, renowned for their superior light-absorbing capabilities, are ideal materials for photodetectors, solar cells, and other light-harvesting applications. The formamidinium-based perovskite used in this research is noted for its enhanced stability and high efficiency in converting light into energy.

However, improving its light absorption and electrical performance while maintaining low production costs has remained a significant challenge. The team used a specialised microprinting technique to precisely arrange the silver nanoparticles, improving the device's sensitivity while making the manufacturing process scalable and economical. The photodetector remains stable under normal environmental conditions, ensuring durability for practical applications across various industries.

This innovative photodetector has the potential to revolutionize multiple industries by enhancing medical imaging, improving the accuracy of environmental monitoring, and increasing solar energy efficiency, all while being produced cost-effectively. It opens the door to broader real-world applications and offers solutions to critical global challenges.

Speaking about the research, Prof. P. K. Giri, said, “Our goal was to create a photodetector that is not only highly efficient but also affordable and durable for real-world applications. By incorporating 2D printed plasmonic nanoparticles into the design, we have significantly enhanced the device’s performance while ensuring scalability and cost-effectiveness.”

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