Guwahati: Researchers at the Indian Institutes of Technology Guwahati have developed a cost-effective, advanced Printed Perovskite Photodetector with significant applications in healthcare and solar energy industries. These high-performance photodetectors utilize perovskite and plasmonic nanoparticles, enhanced by a microprinting technique for optimal light absorption, according to a release.
What are Perovskites?
Perovskites are known for their exceptional light-absorbing properties, making them ideal materials for photodetectors, solar cells, and other light-harvesting technologies. However, enhancing light absorption and electrical performance while keeping production costs low has been a challenge.
To address this issue, the research team at IIT Guwahati integrated an array of 2D printed plasmonic nanoparticles - tiny particles made of noble metals like silver (Ag) - into their perovskite photodetector. These Ag nanoparticles array help focus light onto the perovskite layer through a process called localized surface plasmon resonance (LSPR), greatly boosting light absorption and efficient photodetection.
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The team used a specialized 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 photodetector innovation could transform industries by improving medical imaging, enhancing environmental monitoring accuracy, and boosting solar energy efficiency, all through cost-effective production.
The research, published in the prestigious ACS Applied Materials & Interfaces journal, has been co-authored by P. K. Giri, Department of Physics, and his research scholars, Debabrata Sahu, Subhankar Debnath, and Sirsendu Ghosal.
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