This session focuses on recent advances in colloidal nanocrystals in the visible spectrum. Emphasis will be placed on innovations in material synthesis, surface chemistry, and integration into optoelectronic devices such as PL and EL devices, photodetectors, single photon emitter and so on. As colloidal nanocrystals continue to gain traction due to their superior optical properties and solution processability, this session aims to bring together researchers working across disciplines to explore new materials (mainly non III-V nanocrystals), device structures, and fundamental insights into nano-micro behavior.
This symposium mainly addresses recent research on synthesis, simulation, processing, characterization, device fabrications in all optoelectronic technologies in the visible range. The session welcomes contributions from academia and industry and encourages interdisciplinary collaboration.
- Synthesis strategies for colloidal nanocrystals, focusing on non III-V QDs
- Core-shell structure with surface ligand engineering
- Device physics of advanced optoelectronics using nanomaterials
- Characterization techniques for optical and electronic properties
Dr. Baek received her B.S. in Chemical Engineering in 2011 from KAIST, Korea, and Ph.D. in EEWS graduate school in 2017 from KAIST, Korea. Dr. Baek worked as a postdoctoral researcher at University of Toronto, ECS from 2017-2020. He started a new position as an Assistant Professor since March. 2020 from Korea University. Baek group focuses on semiconducting nanomaterials, colloidal quantum dot (CQD) including synthesis, surface modification, and device fabrication. Especially, they are studying on infrared CQD materials, which can be utilized in various fields, such as autonomous driving, virtual reality, quantum communication, bio-imaging. Recently, they developed a non-toxic infrared CQD and thereby demonstrating the efficient photodetector, solar cells, LED and bio-sensor. The group has representative publications in Nat. Energy, Adv. Mater, Nat. Commun., Adv. Energy Mater., Chem. Eng. J, etc. in recent five years
SEONG-YONG CHOMoon Kee ChoiJONG KYU KIMResearch Scientist at Fraunhofer IAP, specializing in cadmium-free quantum dots (QDs) for next-generation light-emitting and display applications. My expertise covers quantum dot electroluminescence (QD-EL) device development and extends to QD color conversion (CF) technologies for advanced display architectures. I also work on scalable QD processing and high-precision printing methods — including inkjet and electrohydrodynamic (EHD)-jet printing — to enable sustainable and efficient manufacturing. Beyond displays, my research explores QD and nanomaterial integration for solar energy technologies, including organic photovoltaics (OPVs).
I hold a Ph.D. in Electrical Engineering from the Technical University of Berlin (2018) and an M.S. from Dankook University (2012), where I conducted research on flexible and transparent QD devices at the Korea Electronics Technology Institute (KETI). Currently, I lead and coordinate international R&D collaborations bridging Fraunhofer and global industry partners to drive innovation in next-generation optoelectronic devices.
Professional Affiliations & Leadership
-Steering Committee Member — Korea-Fraunhofer Collaboration Hub for Science & Technology (K-FAST)
Project planning and industry–research matchmaking between Fraunhofer and Korean enterprises
-Officer/Treasurer — Society for Information Display (SID) Mid-Europe Chapter
Coordinating chapter events, technical talks, and member engagement
Jiwoong Yang