Results 71 to 80 of about 16,770 (247)

Functionalization of Graphene Nanoribbons [PDF]

, 2012
With the synthesis of a single atomic plane of graphite, namely, graphene honeycomb structure, a new perspective for carbon-based electronics is opened. The one-dimensional graphene nanoribbons (GNRs) have different band-gap values depending on their edge shape and width.
Sevinçli H., Topsakal, M., Ciraci, S.
openaire   +3 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Edge-Corrected Mean-Field Hubbard Model: Principle and Applications in 2D Materials

Frontiers in Physics, 2017
This work reviews the current progress of tight-binding methods and the recent edge-modified mean-field Hubbard model. Undercoordinated atoms (atoms not fully coordinated) exist at a high rate in nanomaterials with their impact overlooked.
Xi Zhang, Tianlei Wang, Wencong Chen, Sanmei Wang, Da Peng   +4 more
doaj   +1 more source

Two-dimensional Transport Induced Linear Magneto-Resistance in Topological Insulator Bi$_2$Se$_3$ Nanoribbons

, 2011
We report the study of a novel linear magneto-resistance (MR) under perpendicular magnetic fields in Bi2Se3 nanoribbons. Through angular dependence magneto-transport experiments, we show that this linear MR is purely due to two-dimensional (2D) transport,
Abrikosov A. A., Abrikosov A. A., Analytis J. G., Analytis J. G., Butch N. P., Checkelsky J. G., Checkelsky J. G., Chen Y. L., Dong Liang, Eto K., Fan Z., Friedman A. L., Hao Tang, Hasan M. Z., Hsieh D., Hsieh D., Hu J. S., Isihara A., Kong D., Luk’yanchuk I. A., Martin J., McClure J. W., Moore J. E., Morozov S. V., Olsen J. L., Parish M. M., Peng H., Qi X. L., Qu D. X., Richard L. J. Qiu, Steinberg H., Xia Y., Xu R., Xuan P. A. Gao, Zhang H. J., Zhang S. C., Zhang Y., Zhang Y., Zhang Y. B.   +38 more
core   +1 more source

Coulomb Blockade in Graphene Nanoribbons [PDF]

Physical Review Letters, 2007
4 pages, 2 ...
Sols, F., Guinea, F., Neto, A. H. Castro
openaire   +3 more sources

Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD

Advanced Materials, EarlyView.
Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo, Masoud Mansouri, Carlos Garcia‐Fernandez, Daniel Sánchez‐Portal, Aran Garcia‐Lekue, Gustavo Ceballos, Aitor Mugarza   +6 more
wiley   +1 more source

External Bias Dependent Direct To Indirect Bandgap Transition in Graphene Nanoribbon

, 2010
In this work, using self-consistent tight-binding calculations, for the first time, we show that a direct to indirect bandgap transition is possible in an armchair graphene nanoribbon by the application of an external bias along the width of the ribbon ...
Bhat, Navakanta, Lin, Yu-Ming, Majumdar, Kausik, Murali, Kota V. R. M.   +3 more
core   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

Advanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti, Carla Boix‐Constant, Iván Gómez‐Muñoz, Diego López‐Alcalá, Sergio Revuelta, Marco Ballabio, Vasileios Balos, José J. Baldoví, Enrique Cánovas, Josep Canet‐Ferrer, Guillermo Mínguez Espallargas, Samuel Mañas‐Valero, Eugenio Coronado   +12 more
wiley   +1 more source

Molecular Dynamics Study of Bending Deformation of Mo₂Ti₂C₃ and Ti₄C₃ (MXenes) Nanoribbons

Molecules
We report a computational study of the bending deformation of two-dimensional nanoribbons by classical molecular dynamics methods. Two-dimensional double transition metal carbides, together with monometallic ones, belong to the family of novel ...
Vadym Borysiuk, Iakov A. Lyashenko, Valentin L. Popov   +2 more
doaj   +1 more source

Effect of Edge Roughness on Electronic Transport in Graphene Nanoribbon Channel Metal Oxide Semiconductor Field-Effect Transistors

, 2007
Results of quantum mechanical simulations of the influence of edge disorder on transport in graphene nanoribbon metal oxide semiconductor field-effect transistors (MOSFETs) are reported.
Banerjee, S. K., Basu, D., Gilbert, M. J., MacDonald, A. H., Register, L. F.   +4 more
core   +1 more source