"Engineering Excitonic Light-Material Interactions for De Novo Optoelectronics"
Excitonic Engineering Lab. @ SKKU
Our research spans over a broad range of molecular optoelectronics based on nanophysical and photophysical engineering, i.e. Excitonic Engineering, of various emerging optoelectronic/photonic/energy materials including organic, polymeric, and organic-inorganic hybrid and low-dimensional semiconductors. Utilizing the chemical versatility of those materials, our primary focus has been the ground state engineering of their nano/micro-structures and the excited state engineering of their ultrafast dynamics. Ultimately, the goal is to overcome the predominant non-ideality of the materials and reach toward their theoretical limits. By doing so, we can realize a highly functioning material platform that can generate predictable, transferrable, reliable, and homogeneous properties. We believe it will have a great impact on future electronics such as solar cells, light emitting diodes, photosensors, optical switching and optoelectronic computing. Detailed fields of research are as follows:
Photophysics Thrust - Molecular Photochemistry of Semiconductors
Nanostructured Materials Photophysical analyses of various quasiparticle interactions in nanocrystals
Multi-component Heterointerfaces Interfacial excited state dynamics in hierarchical nanomorphology
Ultrafast Spectroscopy Femto-to-microsecond ultrafast pump-probe spectroscopy for excited state design
Electronics Thrust - Device Physics in Optoelectronic Applications
Semiconductor Device Physics Analyses of charge generation and recombination dynamics of semiconductor devices
Energy Conversions Devices Development of photovoltaic & photoctalytic devices with minimized non-ideal energy losses
Beyond-Moore Electronics Photonic logic computing systems base on multi-valued logic and neuromorphic devices
분자광전자연구실은 분자전자소재 및 광전소자를 연구하고 있습니다. 최근 몇년간 인공지능 및 IoT 기술 시장이 빠르게 성장하고 있습니다. 그리고 이를 구현하기 위해 점점 더 막대한 에너지가 소모되고 있습니다. 기존 반도체 기술이 한계를 맞이하고 있는 지금, 지속가능한 발전을 위해서는 기존과 전혀 다른 방식의 새로운 반도체 기술이 개발되어야 합니다. 우리 연구실에서는 빛을 이용하여 전자소재의 작동 메커니즘을 분자수준에서 이해하고, 이를 통해 미래 광/전자소자 기술의 토대가 될, 이상적인 반도체 소재/소자/공정 기술을 개발하고 있습니다. 주요연구테마는 아래와 같습니다.
전자재료 광물리화학 (분자분광학/초고속분광학/분자구조분석) (Molecular Electronics; Photophysics and Photochemistry)
광전변환소자 (광센서/발광소자/태양전지/광촉매) (Photonic Sensors/Photovoltaic Cells/Photoelectrochemical Systems)
광논리소자 (광컴퓨팅/다진법/신경모사) (Non-Boolean Photonic Logic Devices including Multibit and Neuromorphic)