Chiral Organic Semiconducting Materials for Next-Generation Flexible Optoelectronics

Chiral organic semiconducting materials are expected to open new opportunities for next-generation flexible optoelectronics. I will introduce fabrication of chiral supramolecular assemblies using organic semiconductors and their structure-chiroptical property relationships. I will present synthesis of chiral supramolecular biocoordination polymers and their applications in various flexible sensors. I will also introduce a skeleton merging approach that can distort the planar semiconducting backbone, which enables high-performance broadband circularly polarized light detections up to the near-infrared spectral region. 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 supramolecular chirality and rational molecular design of organic semiconductors toward high-performance chiral optoelectronics. In addition, 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.