نتایج جستجو برای: multilayer nanostructure

تعداد نتایج: 25957  

Journal: :Journal of Machine Learning Research 2017
James D. Wilson John Palowitch Shankar Bhamidi Andrew B. Nobel

Multilayer networks are a useful way to capture and model multiple, binary relationships among a fixed group of objects. While community detection has proven to be a useful exploratory technique for the analysis of single-layer networks, the development of community detection methods for multilayer networks is still in its infancy. We propose and investigate a procedure, called Multilayer Extra...

2015
Iltai (Isaac) Kim Kenneth David Kihm

Nanophotonic technique has been attracting much attention in applications of nano-bio-chemical sensing and energy conversion of solar energy harvesting and enhanced energy transfer. One approach for nano-bio-chemical sensing is surface plasmon resonance (SPR) imaging, which can detect the material properties, such as density, ion concentration, temperature, and effective refractive index in hig...

2004
Yiming Li

We investigate the transition energy of vertically stacked semiconductor quantum dots with a complete threedimensional (3D) model in an external magnetic field. In this study, the model formulation includes: (1) the positiondependent effective mass Hamiltonian in non-parabolic approximation for electrons, (2) the position-dependent effective mass Hamiltonian in parabolic approximation for holes...

2016
Govind Dayal

DOI: 10.1002/adom.201600356 of the local environment. [ 5 ] Confi nement of plasmon modes to a surface of metal nanostructures under the constraints imposed by the fi nite boundaries of the nanostructure alters their dispersion, only allowing for discrete solutions. In the quasi-static limit, where the wavelength of the excitation light is much larger than the size of the nanostructure, the nan...

Journal: :Nanoscale 2015
Pin Hao Zhenhuan Zhao Liyi Li Chia-Chi Tuan Haidong Li Yuanhua Sang Huaidong Jiang C P Wong Hong Liu

Current applications of carbon-based supercapacitors are limited by their low energy density. One promising strategy to enhance the energy density is to couple metal oxides with carbon materials. In this study, a porous MnCo2O4.5 nanoneedle/carbon aerogel hybrid nanostructure was synthesized by assembling MnCo2O4.5 nanoneedle arrays on the surface of channel walls of hierarchical porous carbon ...

Journal: :journal of nanostructures 2012
m. zahedifar m. mehrabi m. modarres s. harooni

beryllium  oxide  (beo)  nanopowder  was  synthesized  using  sol-gel method  and  the  effects  of  changes of  chemical  reagents  were investigated.  because  of  tissue  equivalence  and  other  outstanding thermoluminescence  (tl) properties of  the bulk material  in x and γ dosimetry, the applicability of this nanostructure in tl dosimetry was studied  following  irradiation to  the 137 c...

Accumulative roll bonding (ARB) was used to fabricate the Cu-Zn multilayer and Cu-Zn solid solution. A lamellar structure with the hardness of about 130 VHN was formed after eight ARB cycles. Following to the suitable heat treatment, a solid solution with a uniform microstructure and hardness of about 57 VHN was produced. The dominant wear mechanism in the ARB processed multilayer was found to ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Ashish Tripathi Jyoti Mohanty Sebastian H Dietze Oleg G Shpyrko Erik Shipton Eric E Fullerton Sang Soo Kim Ian McNulty

Understanding electronic structure at the nanoscale is crucial to untangling fundamental physics puzzles such as phase separation and emergent behavior in complex magnetic oxides. Probes with the ability to see beyond surfaces on nanometer length and subpicosecond time scales can greatly enhance our understanding of these systems and will undoubtedly impact development of future information tec...

Journal: :Journal of the American Chemical Society 2011
Young-geun Ha Jonathan D Emery Michael J Bedzyk Hakan Usta Antonio Facchetti Tobin J Marks

We report here on the rational synthesis, processing, and dielectric properties of novel layer-by-layer organic/inorganic hybrid multilayer dielectric films enabled by polarizable π-electron phosphonic acid building blocks and ultrathin ZrO(2) layers. These new zirconia-based self-assembled nanodielectric (Zr-SAND) films (5-12 nm thick) are readily fabricated via solution processes under ambien...

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