Department of Chemistry
College of Science
Korea University
Research Highlight
KSJ research group aims to develop and characterize novel functional materials.
We synthesize novel materials and measure optical, electrical, magnetic, and chemical properties using various methods. Performing both synthesis and characterization enables us to clearly understand the underlying photophysical and photochemical phenomena. Also, we fabricate QLED and infrared photodetectors.
i) Steady-state intraband and interband transitions of Quantum Dots
ii) IR QD Photodetector (MWIR, eSWIR, SWIR)
iii) Quantum Plasmon Resonance
iv) Infrared lasing nanomaterials
Publication
Degeneracy Broken Quantized States in Conduction Band of Self-doped Silver Selenide Quantum Dots
Laser & Photonics Reviews, 2026 Accepted (research article)
Three tunable intraband transitions in mid-wavelength infrared to long-wavelength infrared and very-long-wavelength infrared (λ >15 µm) arising from broken-degeneracy in the conduction band of quantum dots. In analogy with the atomic p-orbital, the quantum dot exhibits a p-like confined energy level in the conduction band (CB) arising from spatial quantization.
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우리는 반도체 나노결정, 양자물질 및 적외선 물질 연구자입니다.
Available position(2027년 1학기)
: + 대학원생 + 학부연구생 + Post-doc
We have open positions for passionate graduate students and postdocs with backgrounds in chemistry, physics, chemical engineering, material science, and electrical engineering.
