Publication
Mechanistic study on the evolution of vacancies in graphene by oxidation by scanning tunneling microscopy
Related publications (135)
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Controlled atomic patterning is an attractive tool to fine tune properties of graphitic lattice. Several O-functionalized derivatives of graphitic lattice have been widely studied, e.g., graphene oxide, reduced graphene oxide, and functionalized carbon nan ...
Oxford2024Functionalized Å-scale Pores in Graphene for Carbon Capture
Single-layer graphene, hosting a high density of functionalized molecular-sieving atom-thick pores, is considered to be an excellent material for gas separation membranes. These functionalized atom-thick pores enable the shortest transport pathway across t ...
EPFL2024Tuning Pore Size in Graphene in the Angstrom Regime for Highly Selective Ion-Ion Separation
Kumar Varoon Agrawal, Kuang-Jung Hsu, Kangning Zhao, Luis Francisco Villalobos Vazquez de la Parra, Shaoxian Li, Heng-Yu Chi, Wan-Chi Lee, Yuyang Zhang
Zero-dimensional pores spanning only a few angstroms in size in two-dimensional materials such as graphene are some of the most promising systems for designing ion-ion selective membranes. However, the key challenge in the field is that so far a crack-free ...
Washington2024Electrochemical-repaired porous graphene membranes for precise ion-ion separation
Kumar Varoon Agrawal, Kuang-Jung Hsu, Shuqing Song, Kangning Zhao, Heng-Yu Chi, Zongyao Zhou
The preparation of atom-thick porous lattice hosting & Aring;-scale pores is attractive to achieve a large ion-ion selectivity in combination with a large ion flux. Graphene film is an ideal selective layer for this if high-precision pores can be incorpora ...
Nature Portfolio2024In-situ atomic level observation of the strain response of graphene lattice
Strain is inevitable in two-dimensional (2D) materials, regardless of whether the film is suspended or supported. However, the direct measurement of strain response at the atomic scale is challenging due to the difficulties of maintaining both flexibility ...
NATURE PORTFOLIO2023Ultralong 100 ns spin relaxation time in graphite at room temperature
László Forró, Bálint Náfrádi, Péter Szirmai, Bence Gábor Márkus
Graphite has been intensively studied, yet its electron spins dynamics remains an unresolved problem even 70 years after the first experiments. The central quantities, the longitudinal (T-1) and transverse (T-2) relaxation times were postulated to be equal ...
NATURE PORTFOLIO2023A versatile platform for graphene nanoribbon synthesis, electronic decoupling, and spin polarized measurements
Johannes Schwenk, Donat Fabian Natterer
The on-surface synthesis of nano-graphenes has led the charge in prototyping structures with perspectives beyond silicon-based technology. Following reports of open-shell systems in graphene-nanoribbons (GNRs), a flurry of research activity was directed at ...
ROYAL SOC CHEMISTRY2023Resonant Transducers Consisting of Graphene Ribbons with Attached Proof Masses for NEMS Sensors
The unique mechanical and electrical properties of graphene make it an exciting material for nanoelectromechanical systems (NEMS). NEMS resonators with graphene springs facilitate studies of graphene's fundamental material characteristics and thus enable i ...
Washington2023Selective Growth of van der Waals Heterostructures Enabled by Electron-Beam Irradiation
Aleksandra Radenovic, Michal Daniel Macha
Van der Waals heterostructures (vdWHSs) enable the fabricationof complex electronic devices based on two-dimensional (2D) materials.Ideally, these vdWHSs should be fabricated in a scalable and repeatableway and only in the specific areas of the substrate t ...
AMER CHEMICAL SOC2023