U
U. J. Kim
Researcher at Pennsylvania State University
Publications - 25
Citations - 2155
U. J. Kim is an academic researcher from Pennsylvania State University. The author has contributed to research in topics: Raman spectroscopy & Carbon nanotube. The author has an hindex of 14, co-authored 17 publications receiving 2046 citations.
Papers
More filters
Journal ArticleDOI
Raman and IR spectroscopy of chemically processed single-walled carbon nanotubes.
TL;DR: In this article, the vibrational spectrum of bundled single-walled carbon nanotubes (SWNTs) during the purification process needed to remove metal catalyst and amorphous carbon present in arc-derived SWNT soot was studied.
Journal ArticleDOI
Debundling and dissolution of single-walled carbon nanotubes in amide solvents.
Clascídia A. Furtado,U. J. Kim,Humberto R. Gutierrez,Ling Pan,Elizabeth C. Dickey,Peter C. Eklund +5 more
TL;DR: Wet chemical methods involving ultrasound and amide solvents were used to purify and separate large bundles of single-walled carbon nanotubes into individual nanot tubes that could then be transported to silicon or mica substrates to remove amorphous carbon.
Journal ArticleDOI
Laser-Induced Fano Resonance Scattering in Silicon Nanowires
TL;DR: In this paper, the authors studied the impact of excitation laser power density on the Raman spectrum of small-diameter (5−15 nm) silicon nanowires at low power densities.
Journal ArticleDOI
CVD Synthesis of Single Wall Carbon Nanotubes under ``soft" Conditions
TL;DR: A series of Fe and Fe/Mo catalysts, supported on alumina, were examined for Single-Walled Nanotube (SWNT) growth by Chemical Vapor Deposition (CVD) in methane as discussed by the authors.
Journal ArticleDOI
Confined phonons in Si nanowires.
TL;DR: Raman microprobe studies of long crystalline Si nanowires reveal for the first time the evolution of phonon confinement with wire diameter and it is found that this parameter is not sensitive to diameter over the range 4-25 nm.