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The thermal stabilization of thin gold nanowires with a diameter of about 2 nm by surfactants is investigated by means of classical molecular dynamics simulations. While the well-known melting point depression leads to a much lower melting…

Materials Science · Physics 2012-01-23 Stefan E. Huber , Chompunuch Warakulvit , Jumras Limtrakul , Tatsuya Tsukuda , Michael Probst

We apply the technique of far-field interferometry to measure the properties of surface waves generated by two-dimensional (2D) single subwavelength slit-groove structures on gold films. The effective surface index of refraction measured…

Optics · Physics 2009-11-13 F. Kalkum , G. Gay , O. Alloschery , J. Weiner , H. J. Lezec , Y. Xie , M. Mansuripur

Spectra of the differential tunneling conductivity for ultrathin lead films grown on Si(111)7x7 single crystals with a thickness from 9 to 50 monolayers have been studied by low-temperature scanning tunneling microscopy and spectroscopy.…

Mesoscale and Nanoscale Physics · Physics 2019-06-12 S. S. Ustavschikov , A. V. Putilov , A. Yu. Aladyshkin

Tip-enhanced Raman spectroscopy (TERS) has reached nanometer spatial resolution for measurements performed at ambient conditions and sub-nanometer resolution at ultra high vacuum. Super-resolution (beyond the tip apex diameter) TERS has…

We report on optical reflection measurements of thin Au films at and around the percolation threshold (film thickness 3 to 10 nm) in an extremely broad spectral range from 500 to 35000 cm-1 (0.3 - 20 *10-6 m). Combining spectroscopic…

Materials Science · Physics 2012-12-19 Martin Hövel , Martin Alws , Bruno Gompf , Martin Dressel

Ordered Ag nanowire arrays with high aspect ratio and high density self-supporting Ag nanowire patterns were successfully prepared using potentiostatic electrodeposition within the confined nanochannels of a commercial porous anodic…

Materials Science · Physics 2011-06-15 Baoliang Sun , Xiaohong Jiang , Shuxi Dai , Zuliang Du

Gold nanostructures have important applications in nanoelectronics, nano-optics as well as in precision metrology due to their intriguing opto-electronic properties. These properties are governed by the bulk band structure but to some…

MgGeN2 films were synthesized using metal-organic chemical vapor deposition on GaN/c-sapphire templates and c-plane sapphire substrates. Energy-dispersive X-ray spectroscopy was used to estimate the cation composition ratios. To mitigate…

Nanowear properties of sputtered Au films in dry and wet environments were investigated using a scanning nanoindenter. Gold exhibits over 10 times higher wear rate in water compared to air at the same normal load of 10 microN. The friction…

Materials Science · Physics 2008-02-19 Xiaolu Pang , Alex A. Volinsky , Kewei Gao

Sculptured copper thin films were deposited on glass substrates, using different deposition rates. The nano-structure and morphology of the films were obtained, using X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning…

Optics · Physics 2010-11-09 H. Savaloni , F. Babaei , S. Song , F. Placido

Regular arrays of metal nanoparticles on metal films have tuneable optical resonances that can be applied for surface enhanced Raman scattering or biosensing. With the aim of developing more surface selective geometries we investigate…

Mesoscale and Nanoscale Physics · Physics 2012-09-13 Andreas Hohenau , Joachim R. Krenn

This study consolidates Multi-Level Starlet Segmentation (MLSS) and Multi-Level Starlet Optimal Segmentation (MLSOS), techniques for photomicrograph segmentation that use starlet wavelet detail levels to separate areas of interest in an…

Computer Vision and Pattern Recognition · Computer Science 2017-06-14 Alexandre Fioravante de Siqueira , Flávio Camargo Cabrera , Aylton Pagamisse , Aldo Eloizo Job

To examine the process of native corrosion of ultrathin (about 10 nm) copper films deposited on quartz glass substrates $(SiO_2)$ with and without a germanium sublayer, the time dependences of the microwave reflection coefficient $R$ and…

Materials Science · Physics 2026-01-01 Vladimir A. Vdovin , Ivan I. Pyataikin

Nanocomposite thin films formed by gold nanoparticles embedded in a nickel oxide matrix have been synthesized by a new variation of the pulsed laser deposition technique. Two actively synchronized laser sources, a KrF excimer laser at 248…

Materials Science · Physics 2013-04-19 I. Fasaki , M. Kandyla , M. Kompitsas

We present here an original process combining top-down and bottom-up approaches by annealing a thin gold film evaporated onto a hole template made by etching a PS-PMMA copolymer film. Such process allows a better control of the gold…

Mesoscale and Nanoscale Physics · Physics 2013-11-01 A. Plaud , A. Sarrazin , J. Béal , J. Proust , P. Royer , J. -L. Bijeon , J. Plain , P. -M. Adam , T. Maurer

Microelectronic-grade copper foils were immersion silver plated in a home-made non-cyanide alkaline silver nitrate - thiosulfate solution and in two commercially available industrial baths via contact reductive precipitation. The…

Materials Science · Physics 2015-02-06 T. I. Török , A. Csik , J. Hakl , K. Vad , L. Kövér , J. Tóth , S. Mészáros , É. Kun , D. Sós

Enhanced transmissions through a gold film with arrays of subwavelength holes are theoretically studied, employing the rigid full vectorial three dimensional finite difference time domain method. Influence of air-holes shape to the…

Optics · Physics 2007-05-23 Sanshui Xiao , Niels Asger Mortensen , Min Qiu

To study the size and strain rate dependency of copper polycrystalline microstructures, a multi-layered copper/Al$_2$O$_3$ thin film was deposited on a Si substrate using a hybrid deposition system (combining physical vapour and atomic…

The plasmonic properties of vacuum evaporated nanostructured gold thin films having different types of nanoparticles are presented. The films with more than 6 nm thickness show presence of nanorods having non cylindrical shape with…

Materials Science · Physics 2014-06-19 V. N. Rai , A. K. Srivastava , C. Mukherjee , S. K. Deb

Surface-enhanced Raman spectroscopy (SERS) using gold-nanorod-dimer nanoantennas has shown great potential in various applications. This reflects in their large values of the customary figure of merit of SERS: the enhancement factor (EF),…