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Nammee Kim
Researcher at Soongsil University
Publications - 18
Citations - 55
Nammee Kim is an academic researcher from Soongsil University. The author has contributed to research in topics: Spin-½ & Magnetic field. The author has an hindex of 3, co-authored 18 publications receiving 41 citations.
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Journal ArticleDOI
Interplay between many body effects and Coulomb screening in the optical bandgap of atomically thin MoS2
Youngsin Park,Sang Wook Han,Christopher C. S. Chan,Benjamin P. L. Reid,Robert A. Taylor,Nammee Kim,Yongcheol Jo,Hyunsik Im,Kwang S. Kim +8 more
TL;DR: Micro-photoluminescence measurements are performed and it is observed that the PL peak redshifts nonlinearly in mono- and bi-layer MoS2 as the excitation power is increased.
Journal ArticleDOI
Temperature induced crossing in the optical bandgap of mono and bilayer MoS2 on SiO2.
Youngsin Park,Christopher C. S. Chan,Christopher C. S. Chan,Robert A. Taylor,Yongchul Kim,Nammee Kim,Yongcheol Jo,Seung Woo Lee,Woochul Yang,Hyunsik Im,Geunsik Lee +10 more
TL;DR: Density functional theory calculations suggest that the observed optical bandgap crossover is caused by a weaker substrate coupling to the bilayer than to the monolayer.
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Linearly polarized photoluminescence of InGaN quantum disks embedded in GaN nanorods.
Youngsin Park,Christopher C. S. Chan,Christopher C. S. Chan,Luke P. Nuttall,Tim J. Puchtler,Robert A. Taylor,Nammee Kim,Yongcheol Jo,Hyunsik Im +8 more
TL;DR: In order to characterize a single nanostructure, the quantum disks were dispersed on a SiO2 substrate patterned with a metal reference grid and the variation of overall PL for the 3.21 eV peak showed the degree of linear polarization (DLP) of 51.5%.
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Carrier confinement effects of InxGa1-xN/GaN multi quantum disks with GaN surface barriers grown in GaN nanorods
Youngsin Park,Christopher C. S. Chan,Christopher C. S. Chan,Robert A. Taylor,Nammee Kim,Yongcheol Jo,Seung Woo Lee,Woochul Yang,Hyunsik Im +8 more
TL;DR: In this paper, structural and optical properties of InxGa1-xN/GaN multi quantum disks (QDisks) grown on GaN nanorods by molecular beam epitaxy have been investigated by transmission electron microscopy and micro-photoluminescence (PL) spectroscopy.
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Magnetoconductance of a hybrid quantum ring: Effects of antidot potentials
TL;DR: In this paper, a hybrid magnetic-electric quantum ring is fabricated by applying an antidot electrostatic potential in the middle of a magnetic quantum dot, which plays a critical role in the energy spectra and magnetoconductance.