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Incheon University Professor Seong-Hoon Jin succeeds in developing a removable flexible perovskite ¡®photodetector array¡¯
Laying the groundwork for core sensor technology for autonomous driving and metaverse
-Break News Incheon Reporter Park Sang-do
A research team led by Professor Seong-Hoon Jin of the Department of Electrical Engineering at Incheon National University has developed a flexible, detachable perovskite-based technology for realizing virtual/augmented (VR/AR) reality based on LiDAR and Metaverse, which are elemental technologies of autonomous vehicles. He succeeded in developing the first photo detector arrays technology.
It is possible to detect from the ultraviolet (UV) region to the near-infrared (NIR) region with a single material, and the need to develop a semiconductor compatible with Si technology has been highlighted, but it is practically difficult to develop broadband photo-detectors. there were many
Recently, although perovskite semiconductors have shown the potential to solve problems, they contain lead (Pb), which is harmful to the human body, and are experiencing difficulties in research and development due to reliability problems.
Professor Seong-Hoon Jin's research team implemented a lead-free cesium-based perovskite (Cs2SnI6)-based multi-band photodetector on a flexible substrate that does not contain lead and has greatly improved reliability.
In an effort to improve the form factor required for system-level integration, we developed a ¡°removable flexible perovskite photodetector array¡± technology that can be physically attached to and detached from a micro LED light source.
The research result is lead-free eco-friendly perovskite development, large-area device manufacturing and photodetector array application technology based on it, and it is necessary for the realization of IoT and virtual/augmented reality. It is important because it can be widely used.
The research was conducted by Professor Seong-Hoon Jin as the corresponding author, and Researcher Mokurala Krishna and Ph.
Professor Jin said, ¡°Maximizing the advantages of the new perovskite semiconductor and utilizing the form factor control technology that is newly linked with the existing Si-based system, it can be newly applied to the optical connection technology and bio-imaging field required for the Si follow-up process. There is,¡± he said, showing expectations for future use.
This research was carried out with the support of the National Research Foundation (NRF) mid-tier researcher project and key research center (Insect Convergence Center). Recognized for academic excellence.