Abstract
Colloidal quantum dots (CQDs) are semiconducting nanoparticles, having quantum confinement effects and thereby rendering a strong advantage to adjust optical properties via tuning their physical structure. Therefore, CQD materials have drawn an attention as a next-generation optoelectronic material. In particular, broadband photo-response of CQD across visible to infrared enables to realize infrared luminescence, sensing, and energy conversion: essential function for the 4th industry revolutions, including autonomous driving, virtual reality (VR), Internet of Things (IoT), and smart systems. In this talk, we showcase the recent advances of CQD as infrared optoelectronics sources and discuss current limitations. We specifically describe various engineering methodology that can maximize quantum efficiency, which is a key factor in photodetection and photovoltaic. Finally, we present the future perspective of CQD-related optoelectronic research fields.
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