57 citations · 170 across the 11 of their papers we have counts for
11 papers
Gas Sensing Properties of single-material SnP3 logical junction via Negative Differential Resistance: Theoretical Study
Muhammad S. Ramzan, Han Seul Kim, Agnieszka B. Kuc
The field of 2D materials has gained a lot of attention for vast range of applications. Amongst others, the sensing ability towards harmful gases is the application, which we explo…
Multi-space excitation as an alternative to the Landauer picture for non-equilibrium quantum transport
Juho Lee, Han Seul Kim, Yong-Hoon Kim
While the Landauer viewpoint constitutes a modern basis to understand nanoscale electronic transport and to realize first-principles implementations of the non-equilibrium Green's…
Constrained-search density functional study of quantum transport in two-dimensional vertical heterostructures
Han Seul Kim, Yong-Hoon Kim
Based on a microcanonical picture that maps the steady-state quantum transport process to a drain-to-source excitation, we develop a constrained-search density functional formalism…
Nitrogen doping of carbon nanoelectrodes for enhanced control of DNA translocation dynamics
Sang Won Jung, Han Seul Kim, Art E. Cho +1
Controlling the dynamics of DNA translocation is a central issue in the emerging nanopore-based DNA sequencing. To address the potential of heteroatom doping of carbon nanostructur…
Controlling transport properties of graphene nanoribbons by codoping-induced edge distortions
Hyo Seok Kim, Seong Sik Kim, Han Seul Kim +1
One notable manifestation of the peculiar edge-localized states in zigzag graphene nanoribbons (zGNRs) is the p-type (n-type) characteristics of nitrogen (boron) edge-doped GNRs, a…
Carbon nanobuds based on carbon nanotube caps: A first-principles study
Ji Il Choi, Hyo Seok Kim, Han Seul Kim +3
Based on density functional theory calculations, we here show that the formation of a fullerene C carbon "nanobud" (CNB) on carbon nanotube (CNT) caps is energetically more…
Recent progress in atomistic simulation of electrical current DNA sequencing
Han Seul Kim, Yong-Hoon Kim
We review recent advances in the DNA sequencing based on the measurement of transverse electrical currents. Device configurations proposed in the literature are classified accordin…
Atomistic Mechanisms of Codoping-Induced p- to n-Type Conversion in Nitrogen-Doped Graphene
Hyo Seok Kim, Han Seul Kim, Seong Sik Kim +1
It was recently shown that nitrogen-doped graphene (NG) can exhibit both p- and n-type characters depending on the C-N bonding nature, which represents a significant bottleneck for…
Conductance recovery and spin polarization in boron and nitrogen codoped graphene nanoribbons
Seong Sik Kim, Han Seul Kim, Hyo Seok Kim +1
We present an ab initio study of the structural, electronic, and quantum transport properties of B-N-complex edge-doped graphene nanoribbons (GNRs). We find that the B-N edge codop…
Prediction of ultra-high ON/OFF ratio nanoelectromechanical switching from covalently-bound C60 chains
Han Seul Kim, Jhinhwan Lee, Yong-Hoon Kim
Applying a first-principles computational approach, we have systematically analyzed the effects of [2+2] cycloaddition oligomerization of fullerene C60 chains on their junction ele…
Distinct mechanisms of DNA sensing based on N-doped carbon nanotubes with enhanced conductance and chemical selectivity
Han Seul Kim, Seung Jin Lee, Yong-Hoon Kim
Carrying out first-principles calculations, we study N-doped capped carbon nanotube (CNT) electrodes applied to DNA sequencing. While we obtain for the face-on nucleobase junction…