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Joint Professor Jeong Young Park (박정영)

2020.08.26 10:58

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  • Position: Professor 
    Tel&office No: +82-42-350-2838 
    Fax:  
    E-mail: jeongypark(at)kaist.ac.kr 
    Education: Seoul National University, Ph. D. in Physics, 1999
    Seoul National University, M.S. in Physics, 1995
    Seoul National University, B.S. in Physics, 1993 
    Affiliation: 화학과 
    ResearchField: Surface physics and chemistry, hot electron physics and chemistry 

Jeong Young Park photograph.jpg

 

SCALE Laboratory (표면과학 촉매 연구실)

 

 Surface Science

 Using various surface sensitive techniques under in situ conditions where the chemical reactions are taking place, we aim to reveal the fundamental principles underlying the formation of nanostructures, and to build on this foundation to synthesize highly-efficient nanocatalysts with desired structure and properties.

 

   Nanocatalysis

 It is known that catalytic activity depends on the size, shape, and composition of nanoparticles. We have systematically expanded this study by synthesizing multi-functional nanoparticles of different sizes, including core–shell, yolk–shell, and hybrid nanocatalysts. We collaborated with another research group that has the capability to synthesize and fabricate novel nanocatalysts. These nanoparticles were then characterized using various surface-sensitive techniques.

 

 Hot Electron

 We have demonstrated electronic excitation created during atomic or molecular processes at the surface. This diode scheme has been utilized to show the analogous photocurrent process and its potential application in future solar and chemical energy conversion technologies.

 

 Scanning Probe Microscopy

 Surface science techniques allow us to determine reaction intermediates and surface mobility under catalytic reaction conditions. Scanning probe microscopy (combined with friction and conductance measurements) was utilized at ambient and reaction conditions, which permits us to investigate the nanomechanical (e.g., friction, adhesion, wear, indentation, modulus), charge transport (e.g., conductance, bandgap), and structural properties.