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ABOUT SAINT

Professors

  • Associate Professor
  • BAE, WANKI
    Lab Quantum Nanomaterials & Devices Laboratory

Research Interest

Optoelectronic devices (light-emitting diodes, photodetectors and photovoltaic devices) based on nanocrystal quantum dots 
Nanocrystal quantum dot/Polymer hybrids 
Synthesis & characterization of nanocrystal quantum dots 



Nanocrystal quantum dot/Polymer hybrids 


Synthesis & characterization of nanocrystal quantum dots 

Education

  • (under supervision of Prof. Kookheon Char)
  • PhD School of Chemical & Biological Engineering, Seoul National University (2009)
  • MS School of Chemical & Biological Engineering, Seoul National University (2005)
  • BS School of Chemical & Biological Engineering, Seoul National University (2003)
  • MS School of Chemical & Biological Engineering, Seoul National University (2005)
  • BS School of Chemical & Biological Engineering, Seoul National University (2003)

Experience

  • Associate Professor at SKKU ( February 2018 - current)
  • Senior researcher (September 2013 - February 2018) Photoelectronic Hybrid Research Center, Korea Institute of Science and Technology, Korea
  • Postdoctoral researcher (December 2010 - August 2013) Chemistry Division, Los Alamos National Laboratory, US (Mentors: Victor I. Klimov& Jeffrey M. Pietryga)
  • Postdoctoral researcher (March 2009 - December 2010) School of Electrical Engineering & Computer Science, Seoul National University, Korea (Advisor: Prof. Changhee Lee)
  • Visiting researcher, July 2006 - August 2006, Institute for Organic Chemistry, Johannes Gutenberg University, Germany (Advisor: Prof. Rudolf Zentel)
  • - Senior researcher (September 2013 - February 2018) Photoelectronic Hybrid Research Center, Korea Institute of Science and Technology, Korea
  • - Postdoctoral researcher (December 2010 - August 2013) Chemistry Division, Los Alamos National Laboratory, US (Mentors: Victor I. Klimov& Jeffrey M. Pietryga)
  • - Postdoctoral researcher (March 2009 - December 2010) School of Electrical Engineering & Computer Science, Seoul National University, Korea (Advisor: Prof. Changhee Lee)
  • - Visiting researcher, July 2006 - August 2006, Institute for Organic Chemistry, Johannes Gutenberg University, Germany (Advisor: Prof. Rudolf Zentel)

Journal Articles

  • (2024)  Quantum Dot-Based Three-Stack Tandem Near-Infrared-to-Visible Optoelectric Upconversion Devices.  ACS NANO.  18,  33
  • (2024)  Impact of Alternating-Current Operation on All-Inorganic Quantum Dot Light-Emitting Diodes.  ACS APPLIED MATERIALS & INTERFACES.  16,  30
  • (2024)  Strain-graded quantum dots with spectrally pure, stable and polarized emission.  NATURE COMMUNICATIONS.  15,  5561
  • (2024)  Effect of the incorporation of gallium ions into silver indium sulfide nanocrystals.  CHEMICAL COMMUNICATIONS.  60,  44
  • (2024)  Efficient and stable InP quantum-dot light-emitting diodes formed by premixing 2-hydroxyethyl methacrylate into ZnMgO.  JOURNAL OF MATERIALS CHEMISTRY C.  12,  20
  • (2024)  Dual ligand exchange of Cd-free quantum dots and optimal control of ink formulation for improving the performance of all-inkjet-printed qunatum dot light-emitting diodes.  JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY.  32,  5
  • (2024)  Memristive Switching Mechanism in Colloidal InP/ZnSe/ZnS Quantum Dot-Based Synaptic Devices for Neuromorphic Computing.  NANO LETTERS.  24,  19
  • (2024)  Growth Control of InP/ZnSe Heterostructured Nanocrystals.  ADVANCED MATERIALS.  2312250,  2312250
  • (2023)  Optimum Design Configuration of Thin-Film Transistors and Quantum-Dot Light-Emitting Diodes for Active-Matrix Displays.  ADVANCED MATERIALS.  35,  48
  • (2023)  Coherent heteroepitaxial growth of I-III-VI<sub>2</sub> Ag(In,Ga)S<sub>2</sub> colloidal nanocrystals with near-unity quantum yield for use in luminescent solar concentrators.  NATURE COMMUNICATIONS.  14,  1
  • (2023)  High-Resolution Multicolor Patterning of InP Quantum Dot Films by Atomic Layer Deposition of ZnO.  ACS PHOTONICS.  10,  8
  • (2023)  Modified Zinc Magnesium Oxide for Optimal Charge-Injection Balance in InP Quantum Dot Light-Emitting Diodes.  ADVANCED OPTICAL MATERIALS.  11,  10
  • (2023)  Direct Assessment of Auger Recombination Rates of Charged Excitons via Opto-Electrical Measurements.  ACS PHOTONICS.  10,  5
  • (2023)  Realization of Highly Efficient InP Quantum Dot Light-Emitting Diodes through In-Depth Investigation of Exciton-Harvesting Layers.  ADVANCED OPTICAL MATERIALS.  11,  8
  • (2023)  Linearly polarized emission from CdSe/CdS core-in-rod nanostructures: Effects of core position.  JOURNAL OF CHEMICAL PHYSICS.  158,  13
  • (2023)  Polarized emission from unidirectionally oriented semiconductor nanorods in light-emitting devices.  APPLIED SURFACE SCIENCE.  614,  156160
  • (2023)  Randomly Disassembled Nanostructure for Wide Angle Light Extraction of Top-Emitting Quantum Dot Light-Emitting Diodes.  SMALL.  19,  20
  • (2023)  Excitation Intensity-Dependent Quantum Yield of Semiconductor Nanocrystals.  JOURNAL OF PHYSICAL CHEMISTRY LETTERS.  14,  10
  • (2023)  Heteroepitaxial chemistry of zinc chalcogenides on InP nanocrystals for defect-free interfaces with atomic uniformity.  NATURE COMMUNICATIONS.  14,  1
  • (2022)  Impact of Morphological Inhomogeneity on Excitonic States in Highly Mismatched Alloy ZnSe1-XTeX Nanocrystals.  JOURNAL OF PHYSICAL CHEMISTRY LETTERS.  13,  49

Honors / Awards

  • 2017 공학한림원 100대기술및주역선정
  • 2016 Merck Young Scientist Award
  • 2009 Samsung Electronics The 15th HumanTech Thesis Prize (Silver Medal)
  • 2008 Samsung Electro-Mechanics The 4th 1nside Edge International Thesis Competition (Gold Medal)