KES5-1244
Chiral Optoelectronics for Next-Generation Displays and Photodetectors
When and Where
Sep 29, 2026
15:50 - 16:15
Presenter(s)
Joon Hak Oh (Seoul National University)
Co-Author(s)
Abstract
The precise control of photon spin states, known as circular polarization (CP), is emerging as a cornerstone for the next generation optoelectronics. Chiral organic materials and chiral perovskites have garnered significant attention due to their unique ability to directly emit or detect circularly polarized light (CPL) without the need for bulky external filters. I will present synthesis of chiral organic semiconductors, fabrication of supramolecular semiconducting materials, structure-property relationships, and their applications in advanced optoelectronic sensors and CPL emitters. In addition, a simple yet powerful method to fabricate chiroptical flexible layers via supramolecular helical ordering of conjugated polymer chains will be introduced. These findings provide guidelines for enhancing chiroptical properties using multiscale chirality and rational molecular design of organic semiconductors toward high-performance chiral optoelectronics. In addition, methodologies for boosting chiroptical activities of chiral perovskites will also be presented. These results demonstrate an effective strategy to realize on-chip detection of the spin degree of freedom of photons necessary for encoded quantum information processing and high-resolution polarization imaging, in addition to high-efficiency 3D displays.
