نتایج جستجو برای: Multilayer nanowire

تعداد نتایج: 28744  

Journal: :journal of nanostructures 2015
m. ahmadzadeh m. almasi-kashi a. ramazani

cofe/cu multilayer nanowires were electrodeposited into anodic aluminum oxide templates prepared by a two-step mild anodization method, using the single-bath technique. nanowires with 30 nm diameter and the definite lengths were obtained. the effect of cofe layers thickness and annealing on the magnetic behavior of the multilayer nanowires was investigated. the layers thickness was controlled t...

2018
Yifeng Xiang Junxue Chen Douguo Zhang Ruxue Wang Yan Kuai Fengya Lu Xi Tang Pei Wang Hai Ming Mary Rosenfeld Ramachandram Badugu Joseph R. Lakowicz

Experiments and numerical simulations demonstrate that when a silver nanowire is placed on a dielectric multilayer, but not the commonly used bare glass slide, the effective refractive index of the propagating surface plasmons along the silver nanowire can be controlled. Furthermore, by increasing the thickness of the top dielectric layer, longer wavelength light can also propagate along a very...

A Omidvar Dezfuli, B Jaleh, M Ahmadi, T Madrakian,

  In this work,copper/palladium (Cu/Pd) multilayer nanowires were successfully prepared by electrodeposition method using polycarbonate template. The fabrication of Pd/Cu multilayer nanowires was controlled by analyzing the current–time transient during electrodeposition using potentiostat. The morphological properties of the nanowires were studied by scanning electron microscopy (SEM) and resu...

2018
Yao Wu Xin Yan Xia Zhang Xiaomin Ren

An innovative solar cell based on a nanowire/quantum dot hybrid nanostructure array is designed and analyzed. By growing multilayer InAs quantum dots on the sidewalls of GaAs nanowires, not only the absorption spectrum of GaAs nanowires is extended by quantum dots but also the light absorption of quantum dots is dramatically enhanced due to the light-trapping effect of the nanowire array. By in...

Journal: :ACS nano 2014
Sun-Kyung Kim Kyung-Deok Song Thomas J Kempa Robert W Day Charles M Lieber Hong-Gyu Park

Recent investigations of semiconductor nanowires have provided strong evidence for enhanced light absorption, which has been attributed to nanowire structures functioning as optical cavities. Precise synthetic control of nanowire parameters including chemical composition and morphology has also led to dramatic modulation of absorption properties. Here we report finite-difference time-domain (FD...

2015
Qian Liu Eric Sandgren Rui Zhu Guoliang Huang

In this paper, a semiconducting photonic nanostructure capable of wide range absorption and tunable optical resonance has been designed with a proposed theoretical optimization model. The design consists of ZnO/CdS core-shell nanowire arrays as well as multilayer thin films that act to absorb incident electromagnetic (EM) waves over a broad frequency range. Theoretical, as well as numerical, st...

2015
Junjie Wang Daniel Rhodes Simin Feng Minh An T. Nguyen K. Watanabe T. Taniguchi Thomas E. Mallouk Mauricio Terrones Luis Balicas J. Zhu

Articles you may be interested in Evaluation of pulsed laser annealing for flexible multilayer MoS2 transistors Appl. Schottky-barrier lowering in silicon nanowire field-effect transistors prepared by metal-assisted chemical etching Appl. Measurement of low Schottky barrier heights applied to metallic source/drain metal–oxide–semiconductor field effect transistors

2016
Klas Tybrandt Janos Vörös

Intrinsically stretchable multilayer circuit boards are fabricated with a fast and material efficient method based on filtration. Silver nanowire conductor patterns of outstanding performance are defined by filtration through wax printed membranes and the circuit board is assembled by subsequent transfers of the nanowires onto the elastomer substrate. The method is used to fabricate a bright st...

2011
Feng Chen Hongquan Jiang Arnold M Kiefer Anna M Clausen Yuk-Hong Ting Amy E Wendt Bingjun Ding Max G Lagally

An approach has been developed to produce silver nanoparticles (AgNPs) rapidly on semiconductor wafers using electrochemical deposition. The closely packed AgNPs have a density of up to 1.4 × 1011 cm-2 with good size uniformity. AgNPs retain their shape and position on the substrate when used as nanomasks for producing ultrahigh-density vertical nanowire arrays with controllable size, making it...

2000
A. V. Vedyayev

We calculate the resistivity and Giant Magnetoresistance (GMR) of a segmented nanowire consisting of two ferromagnetic segments separated by a thin paramagnetic spacer. The quantization of the electron motion due to the small nanowire cross-section is taken into account; s − d electron scattering gives rise to different mean free paths for spin-up and spin-down s-electrons. The calculated resis...

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