Research Topics
Sub-micron Raman thermography for power semiconductor electronics and for next generation metrology
1. Ultra-fast Raman scanning and thermography by using FT-Raman, and lock-in technique
2. high-spatial resolution, sub-micron analysis of heat distribution in a integrated circuit and micro-chips.
Surface-plasmon enhanced Raman spectroscopy(SERS) for semiconductor physical analysis
1. depth dependent strain profiling of multi-layered semiconductor structures
2. strain profiling of UV-C LED, GaN-on-Si, SiC power electronic devices, and its relation with device performance.
Ag NP SERS membrane fabrication
1. SERS membrane fabrication for highly enhanced Raman spectroscopy
2. ultra-small amount detection
3. >50nm surface specific non-destructible obtical probe for semiconductor surface process
RT Single photon emission from GaN-related materials
1. using Hanbury Brown and Twiss interferometer.
2. single-photon detector with 3D piezo-canning with TCSPC
3. Room temperature single photon source for quantum information
Optical properties of phosphor
1. simulataneous measurement of R, T, luminescence and scattering with dual integrating sphere
2. efficiency analysis and micro-PL, TRPL
Electrical and optical properties of micro-LED for the next generation display
1. PL, EL, I-V, temperature dependece, quantum efficiency.
2. InGaN/GaN red LED
3. Non-contact characterization method for micro-LED test.
Current Research Projects (2025)
Highly indistinguishable single photon emitters at room temperature from the defects from GaN-related materials. - 연구재단
Development of Manufacturing Technology for High Efficiency stacked Micro-LED Epi wafer.- 산자부
Development of SiAlON-based phosphors for Automotive applications. - 중기부
Development of measurement system of ultra-high resolution >1um visible light thermography for semiconductor thermal analysis - 중기부
Development of Lateral type 650V-grade GaN based power semiconductor devices - 경기도
Department of Data Information & Physics, Kongju National University
129-2, College of Natural Sciences, 56 Gongjudaehak-ro, Gongju-si, Chungcheongnam-do, 32588, South Korea
Contact information
(Tel) +82-41-850-8746 / (Email) jh-song@kongju.ac.kr