DGIST Develops Advanced Infrared Sensor for Fog and Nighttime Visibility
DGIST's research team, in collaboration with KIST and KIMS, has created a next-gen near-infrared image sensor combining quantum dots and 2D semiconductors. This technology enhances object detection in fog and smoke, with potential applications in autonomous vehicles and medical imaging.
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A hybrid photosensor architecture has been developed by a team led by Prof. Jong-Soo Lee at DGIST, featuring Ag₂Te quantum dots and MoS₂ two-dimensional semiconductors. This combination allows for high responsivity of 7.5 × 10⁵ A/W and detectivity near 10⁹ Jones, enabling effective detection of weak infrared signals.
The research team also fabricated a 32 × 32 pixel infrared image sensor array, demonstrating integration with CMOS semiconductor processes and potential for commercialization. Supported by the Ministry of Science and ICT and National Research Foundation of Korea, findings were published in Advanced Materials, indicating significant advancements for next-gen photosensors.
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