Chi Won Ahn, Ph.D.
Principal Researcher,Team Leader/Global NT DevelopmentDirector/FIRST Nano Co-op Center,
Adjunct Prof. KAIST
cwahn@nnfc.re.kr
Biography:
Dr. Chi Won Ahn is presently
a director of FIRST Nano Co-op Global Research Center and group leader of Nano-Materials
division, National Nanofab Center at KAIST and adjunct professor of KAIST.
He received his M.S. and PhD.
in Materials Science and Engineering from Korea Advanced Institute of Science
and Engineering (KAIST). He was with Advanced Materials Research Institute at
KUN, Nijmegen, Netherlands, where he worked on nano-pattern induced
self-assembly, scanning force microscope, and opto-magnetics. He was with Kavli
Institute of Nanoscience, TU Delft in the Netherlands, where he worked on
in-situ and cryo-observation by TEM, nano-fluidics, and nano-reactor for
synthesis, assembly, and analysis of the nano-scale reactions of macromolecules
and nano-materials.
His research interests
include synthesis and analysis of nano-materials (graphene, Mxene, nano-pore,
nano-fiber, nanowire, and nano-cluster et al.), and 3D nano-structuring,
applications to nano-patterning and nano-devices (for sensor, energy,
enviroment) et al. He has published over 75 technical
papers and is the holder of over 30 patents.
Topic title：Nanoscale
Control Technology of Nano-Materials and Their Applications
Abstract：Understanding nanoscale
phenomena associated with atomic transport, phase change, electrical or optical
properties, and even reactions in the gas or liquid phase, is critical in the
field of nanomaterial control and applications. We have
applied the in-situ observation technologies on 0D, 1D, 2D, and 3D
nanomaterials, such as nano-pore, nano-cluster, nanowire, nanotube, graphene,
and MXene et al. We have controlled various nanoscale interactions; formation
of solid state nano-pores in the ultrathin graphene [1] or nano-gap thin Au/SiO2 substrate [2], phase changes in nanowire devices [3], direct observations of
metal nano-droplets [4] and fusion of CNT [5], and new 2D materials on a
freestanding graphene [6], and nano-structured electrode for energy and sensor
applications [7] et al.
REFERENCES:
[1] Nanoscale 8(30) 14420 (2016).
[2] Nature Comm. 9, 2218 (2018).
[3] Advanced Materials, 23,
1871 (2011).
[4] Scientific Reports 3, 2588 (2013).
[5] Nature Comm.5, 4941
(2014).
[6] ACS Nano, 8(7) 6655
(2014).
