Joonwon Lim
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View article: TBA-enabled spin-coating of a percolatively connected GO nanosieve for thru-hole epitaxy: tuning GO flake stacking and coverage to control GaN nucleation
TBA-enabled spin-coating of a percolatively connected GO nanosieve for thru-hole epitaxy: tuning GO flake stacking and coverage to control GaN nucleation Open
We report a spin-coating-based approach for forming a percolatively connected graphene oxide (GO) nanosieve on SiO$_2$-patterned sapphire substrates, where the addition of tetrabutylammonium (TBA) to the GO solution significantly improves …
View article: Facilitated fluorination and etching of 2D materials
Facilitated fluorination and etching of 2D materials Open
Precise control of functionalization and etching have been required for surface modification and device fabrication of two-dimensional (2D) materials. Specifically, fluorination of graphene has been used to control the properties of graphe…
View article: CNT–rGO Hydrogel-Integrated Fabric Composite Synthesized via an Interfacial Gelation Process for Wearable Supercapacitor Electrodes
CNT–rGO Hydrogel-Integrated Fabric Composite Synthesized via an Interfacial Gelation Process for Wearable Supercapacitor Electrodes Open
We demonstrate a flexible and stretchable supercapacitor assembled via straightforward interfacial gelation of reduced graphene oxide (rGO) with carbon nanotube (CNT) on a stretchable fabric surface. The difference between the redox potent…
View article: Investigation of the Effect of Structural Properties of a Vertically Standing CNT Cold Cathode on Electron Beam Brightness and Resolution of Secondary Electron Images
Investigation of the Effect of Structural Properties of a Vertically Standing CNT Cold Cathode on Electron Beam Brightness and Resolution of Secondary Electron Images Open
Carbon nanotube (CNT)-based cold cathodes are promising sources of field emission electrons for advanced electron devices, particularly for ultra-high-resolution imaging systems, due to their high brightness and low energy spread. While th…
View article: N-Dopant-Mediated Growth of Metal Oxide Nanoparticles on Carbon Nanotubes
N-Dopant-Mediated Growth of Metal Oxide Nanoparticles on Carbon Nanotubes Open
Metal oxide nanoparticles supported on heteroatom-doped graphitic surfaces have been pursued for several decades for a wide spectrum of applications. Despite extensive research on functional metal oxide nanoparticle/doped carbon nanomateri…
View article: Methods for measuring the electron EDM using ultracold YbF molecules
Methods for measuring the electron EDM using ultracold YbF molecules Open
Measurements of the electron's electric dipole moment (eEDM) are demanding tests of physics beyond the Standard Model. We describe how ultracold YbF molecules could be used to improve the precision of eEDM measurements by two to three orde…
View article: Hydrogen Evolution Reaction: Cobalt Based Nanoparticles Embedded Reduced Graphene Oxide Aerogel for Hydrogen Evolution Electrocatalyst (Part. Part. Syst. Charact. 7/2019)
Hydrogen Evolution Reaction: Cobalt Based Nanoparticles Embedded Reduced Graphene Oxide Aerogel for Hydrogen Evolution Electrocatalyst (Part. Part. Syst. Charact. 7/2019) Open
By freeze-drying and heat treatment, various cobalt based nanoparticles decorated reduced graphene oxide could be obtained with small, uniform nanoparticle distribution. In article number 1900090, Sang Ouk Kim and co-workers suggest a simp…
View article: Carbon nanotube-grafted inverse opal nanostructures
Carbon nanotube-grafted inverse opal nanostructures Open
There have been numerous reports on hybridization to overcome the intrinsic limitations or properties of existing materials, and to develop a better composite for application in diverse nanostructured devices. Therefore, such a new functio…
View article: Carbon Nanomaterials: Nitrogen Dopants in Carbon Nanomaterials: Defects or a New Opportunity? (Small Methods 1‐2/2017)
Carbon Nanomaterials: Nitrogen Dopants in Carbon Nanomaterials: Defects or a New Opportunity? (Small Methods 1‐2/2017) Open
Heteroatom doping into carbon nanomaterials, including carbon nanotubes, graphene, and graphene nanoribbons is discussed by Sang Ouk Kim and co-workers in article number 1600014. Nitrogen doping provides new opportunities, including the ab…