User profiles for Bobby Sumpter
 | Bobby G. SumpterOak Ridge National Laboratory Verified email at ornl.gov Cited by 35943 |
Recent advances in two-dimensional materials beyond graphene
The isolation of graphene in 2004 from graphite was a defining moment for the “birth” of a
field: two-dimensional (2D) materials. In recent years, there has been a rapidly increasing …
field: two-dimensional (2D) materials. In recent years, there has been a rapidly increasing …
Ultrathin planar graphene supercapacitors
With the advent of atomically thin and flat layers of conducting materials such as graphene,
new designs for thin film energy storage devices with good performance have become …
new designs for thin film energy storage devices with good performance have become …
Controlled formation of sharp zigzag and armchair edges in graphitic nanoribbons
Graphene nanoribbons can exhibit either quasi-metallic or semiconducting behavior,
depending on the atomic structure of their edges. Thus, it is important to control the morphology …
depending on the atomic structure of their edges. Thus, it is important to control the morphology …
A universal model for nanoporous carbon supercapacitors applicable to diverse pore regimes, carbon materials, and electrolytes
Supercapacitors, commonly called electric double‐layer capacitors (EDLCs), are emerging
as a novel type of energy‐storage device with the potential to substitute batteries in …
as a novel type of energy‐storage device with the potential to substitute batteries in …
Density-functional approaches to noncovalent interactions: A comparison of dispersion corrections (DFT-D), exchange-hole dipole moment (XDM) theory, and …
LA Burns, AV Mayagoitia, BG Sumpter… - The Journal of chemical …, 2011 - pubs.aip.org
A systematic study of techniques for treating noncovalent interactions within the computationally
efficient density functional theory (DFT) framework is presented through comparison to …
efficient density functional theory (DFT) framework is presented through comparison to …
Theoretical model for nanoporous carbon supercapacitors
Supercapacitors based on nanoporous carbon materials, commonly called electric double-layer
capacitors (EDLCs), have recently attracted considerable attention.[1, 2] Carbon …
capacitors (EDLCs), have recently attracted considerable attention.[1, 2] Carbon …
PdSe2: Pentagonal Two-Dimensional Layers with High Air Stability for Electronics
Most studied two-dimensional (2D) materials exhibit isotropic behavior due to high lattice
symmetry; however, lower-symmetry 2D materials such as phosphorene and other elemental …
symmetry; however, lower-symmetry 2D materials such as phosphorene and other elemental …
Electronic bandgap and edge reconstruction in phosphorene materials
Single-layer black phosphorus (BP), or phosphorene, is a highly anisotropic two-dimensional
elemental material possessing promising semiconductor properties for flexible electronics. …
elemental material possessing promising semiconductor properties for flexible electronics. …
Unique chemical reactivity of a graphene nanoribbon's zigzag edge
The zigzag edge of a graphene nanoribbon possesses a unique electronic state that is near
the Fermi level and localized at the edge carbon atoms. The authors investigate the …
the Fermi level and localized at the edge carbon atoms. The authors investigate the …
The joint automated repository for various integrated simulations (JARVIS) for data-driven materials design
The Joint Automated Repository for Various Integrated Simulations (JARVIS) is an integrated
infrastructure to accelerate materials discovery and design using density functional theory (…
infrastructure to accelerate materials discovery and design using density functional theory (…