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) QLED and IR QD Photodetector
iii) Quantum Plasmon Resonance of Nanocrystals
iv) Infrared lasing nanomaterials
Publication
"Air-Stable Mid-Infrared Sensitive Cation-Exchanged Silver-Doped Mercury Telluride Nanocrystal"
J. Phys. Chem. Lett. 2025,
16, 2373–2377
We present an air-stable mid-infrared Ag-doped HgTe colloidal quantum dots synthesized by a newly developed cation-exchange method in solution phase and mid-IR diode sensors fabricated with the as-synthesized Ag-HgTe quantum dots. The cation-exchanged p-doped Ag-HgTe CQDs are used for the p–n junction formation with a n-doped HgTe CQDs. Surprisingly, the Ag-HgTe CQDs sustain the optical and physical properties in the colloidal phase under ambient conditions for 900 days.
News
Contact
우리는 반도체 나노결정, 양자물질 및 적외선 물질 연구자입니다.
적외선 QD 양자점/적외선 레이저/적외선 디텍터 및 QD LED 연구에 관심있는 대학원생과
실험물리화학/소재합성/광전자센서소자 전공 Post-doc fellow 를 모집 중입니다.(2026)
Available position(2026년 1학기)
: + 대학원생 + 학부연구생 + Post-doc
We have open positions for passionate graduate students, technicians, and postdocs with backgrounds in chemistry, physics, chemical engineering, material science, and electrical engineering.
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