김희찬 연구실

Even state-of-the-art light-emitting materials continue to face challenges in efficiency, stability, brightness, and color purity. We develop new molecular design principles to overcome these limitations by harnessing thermally activated delayed fluorescence (TADF), circularly polarized luminescence (CPL), room-temperature phosphorescence (RTP), and other emerging photophysical mechanisms. Redox switching of molecular materials has broad implications for electrochemical energy storage, electrochromics, and carbon capture. We develop modular strategies that combine multiple redox-active organic motifs with transition metals to create novel molecular and supramolecular systems with precisely tunable redox potentials, kinetics, and charge-storage capacities. Designed from the bottom up with atomic precision, organic radicals offer unique opportunities for quantum information science, enabling delicate control over their electronic, magnetic, and optical properties. We systematically investigate the structure-property relationships of organic polyradicals to establish design principles for next-generation quantum materials. The activation and transformation of small gaseous molecules are important for addressing current energy challenges. Main-group elements in unusual oxidation states exhibit unique reactivity for small-molecule activation. With a particular focus on low-valent p-block elements, we investigate their ability to enable new modes of bond activation and catalysis. We welcome motivated undergraduate students, graduate students, and postdoctoral researchers who are interested in synthetic chemistry, functional molecular materials, and main-group chemistry.