Results 51 to 60 of about 9,016 (245)

Ab Initio Study of Ferroelectric Critical Size of SnTe Low-Dimensional Nanostructures

Nanomaterials, 2020
Beyond a ferroelectric critical thickness of several nanometers existed in conventional ferroelectric perovskite oxides, ferroelectricity in ultimately thin dimensions was recently discovered in SnTe monolayers.
Takahiro Shimada, Koichiro Minaguro, Tao Xu, Jie Wang, Takayuki Kitamura   +4 more
doaj   +1 more source

Two Kondo Impurities in Armchair Graphene Nanoribbon [PDF]

, 2012
An interplay of the Kondo effect and inter-impurity correlations in the armchair graphene nanoribbon is studied in the mean field slave boson approach.
Krychowski, D., Lipiński, S.
core   +1 more source

Mechanical properties of graphene nanoribbons [PDF]

Journal of Physics: Condensed Matter, 2009
Herein, we investigate the structural, electronic and mechanical properties of zigzag graphene nanoribbons upon the presence of stress applying Density Functional Theory within the GGA-PBE approximation. The uniaxial stress is applied along the periodic direction, allowing a unitary deformation in the range of +/- 0.02%.
Faccio, Ricardo, Denis, Pablo A., Pardo, Helena, Goyenola, Cecilia, Mombru, Alvaro W.   +4 more
openaire   +3 more sources

Graphite nanoribbons prepared by the graphitization of poly(4-phthalimide) nanoribbons

TANSO, 2014
Abstract Highly crystalline polyphthalimide nanoribbons were prepared by the reaction-induced crystallization of oligomers during solution polymerization. Polymerization of 1-hexyl 4-aminophthalate and 2-hexyl 4-aminophthalate was carried out at 330 °C in alkyl naphthalene oil.
Akihiro Hachiya, Hiroyuki Fujimoto, Kanji Wakabayashi, Hiroaki Zaima, Masahiro Satoh   +4 more
openaire   +2 more sources

Graphene nanoribbon as an elastic damper [PDF]

Nanotechnology, 2018
Abstract Heterostructures composed of dissimilar two-dimensional nanomaterials can have nontrivial physical and mechanical properties which are potentially useful in many applications. Interestingly, in some cases, it is possible to create heterostructures composed of weakly and strongly stretched domains with the same chemical ...
Iman Evazzade, Ivan P Lobzenko, Danial Saadatmand, Elena A Korznikova, Kun Zhou, Bo Liu, Sergey V Dmitriev   +6 more
openaire   +4 more sources

The electronic properties of the doped zigzag silicon carbon nanoribbon

, 2015
We investigate the electronic properties of zigzag silicon carbon nanoribbon with boron nitrogen codoping at different sites by means of the first principles calculations based on density functional theory.
Dai, XQ, Lu, MW, Zhang, BS(张宝顺), Xiao, JR, Zeng, ZM(曾中明), Wang, ZY (王志勇), Wang, ZY(王志勇)   +6 more
core   +1 more source

Plasmon‐Enhanced Second‐Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures

Advanced Materials, EarlyView.
Atomically thin crystalline silver films combine vertical quantum confinement with lateral plasmonic field enhancement to boost second‐harmonic generation. Nanoribbon and nanotriangle arrays enable geometry‐tunable infrared plasmon resonances, producing strong SHG from deeply subwavelength metallic volumes compatible with silicon‐based nanophotonics ...
Saad Abdullah, Philipp K. Jenke, Andrew P. Weber, Álvaro Rodríguez Echarri, Vahagn Mkhitaryan, Fadil Iyikanat, Frederik Schiller, Philip Walther, J. Enrique Ortega, Lee A. Rozema, F. Javier García de Abajo   +10 more
wiley   +1 more source

First principle studies of zigzag AlN nanoribbon

, 2009
Ab initio density functional calculations were performed to study the geometry and electronic structure of a prototypical zigzag AlN nanoribbon. We find that H-terminated zigzag 10-AlN nanoribbons have a non-direct band gap and are nonmagnetic.
ZH Zhu (14530436), Ying (Ian) Chen (13074204), AJ Du (14530409), GQ Lu (14530412), SC Smith (11760032)   +4 more
core   +2 more sources

Dimensional Reduction of Transition Metal Dichalcogenides by Oxide Insertion: Quasi‐1D Oxychalcogenide Semiconductors

Angewandte Chemie, EarlyView.
Molecular Scissors: Oxide insertion slices the layers of MQ2 transition metal dichalcogenides (TMDs) into one‐dimensional [M3Q6] nanoribbons, giving a new family of A2Hf3Q6O (A = K, Rb, Cs; Q = S, Se) oxychalcogenides. The heteroanion‐driven dimensional reduction yields direct‐gap semiconductors with optical absorption that is tunable across the ...
Ayat Tassanov, Azamat Yessengazin, Huiju Lee, Pedro R. Trinidad‐Pérez, Daniel G. Chica, Yi Xia, James M. Hodges   +6 more
wiley   +2 more sources

Finite-size effects on thermionic emission in metal-graphene-nanoribbon contacts

, 2010
A finite-size effect leads to more electrons to occupy high-energy states in a graphene nanoribbon. Therefore, the thermionic-emission (TE) current density of a metal/graphene nanoribbon changes with its width when the graphene nanoribbon is a ...
Zhu, H W, Li, Xijun, Wang, Z O, Yang, J F, Zhu, C Y, Mao, Ling-Feng, Lu, Z H, Liu, Y S, Wang, J Y, Y S Liu, null Ling-Feng Mao, J Y Wang, J F Yang, C Y Zhu, Z O Wang, H W Zhu, X J Li, Z H Lu   +17 more
core   +1 more source