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Using two different experimental techniques, namely, chemical vapor deposition (CVD) and physical vapor deposition (PVD), we deposited a Lead sulphide (PbS) thin films with a very small lifetime. We investigated the morphology of the…

Materials Science · Physics 2014-09-12 H. S. H. Mohamed , M. Abdel-Hafiez , B. N. Miroshnikov , A. D. Barinov , I. N. Miroshnikova

We analyse a binary mixture of colloidal parallel hard cylindrical particles with identical diameters but dissimilar lengths $L_1$ and $L_2$, with $s=L_2/L_1=3$, confined by two parallel hard walls in a planar slit-pore geometry, using a…

Soft Condensed Matter · Physics 2019-03-27 Daniel de las Heras , Yuri Martinez-Raton , Enrique Velasco

Ordering nanoparticles into a desired super-structure is often crucial for their technological applications. We use molecular dynamics simulations to study the assembly of nanoparticles in a polymer brush randomly grafted to a planar…

Soft Condensed Matter · Physics 2017-12-11 Shengfeng Cheng , Mark J. Stevens , Gary S. Grest

Conical nanopores in amorphous SiO$_{2}$ thin films fabricated using the ion track etching technique show promising potential for filtration, sensing and nanofluidic applications. The characterization of the pore morphology and size…

We present a unified elucidation for the role temporal coherence properties of x-rays in surface x-ray standing wave analysis, under total external reflection condition. Analytical formulas have been derived that provide a direct relation…

Mesoscale and Nanoscale Physics · Physics 2014-06-16 M K Tiwari , Gangadhar Das

We present results of temperature dependent measurements of dynamics of micellar nanoparticle - polymer composites of fixed volume fraction and variable polymer chain grafting density. For nanoparticles with lower grafting density we…

Soft Condensed Matter · Physics 2008-09-12 A. K. Kandar , S. Srivastava , J. K. Basu , M. K. Mukhopadhyay , S. Seifert , S. Narayanan

We investigate the conformation, position, and dynamics of core-shell nanoparticles (CSNPs) composed of a silica core encapsulated in a cross-linked poly-N-isopropylacrylamide shell at a water-oil interface for a systematic range of core…

Soft Condensed Matter · Physics 2018-09-07 Siddarth A. Vasudevan , Astrid Rauh , Martin Kröger , Matthias Karg , Lucio Isa

Nanowires with a GaSb core and an InAs shell (and the inverted structure) are interesting for studies of electron-hole hybridization and interaction effects due to the bulk broken band-gap alignment at the material interface. We have used…

Mesoscale and Nanoscale Physics · Physics 2017-04-03 Florinda Viñas , H. Q. Xu , Martin Leijnse

In this paper, the effects of changes in Sol concentration on the structural and optical properties of SnO2 Nanoparticles are studied through the Sol-Gel method. SnO2 Nanoparticles are produced from different SnO2 solution concentrations…

Mesoscale and Nanoscale Physics · Physics 2025-03-05 Ali Reza Razeghizadeh , Lila Zalaghi , Iraj Kazeminezhad , Vahdat Rafee

When polyelectrolyte-neutral block copolymers are mixed in aqueous solutions with oppositely charged species, stable complexes are found to form spontaneously. The mechanism is based on electrostatics, and on the compensation between the…

The effect of capture of X-ray beam into narrow submicron capillary was investigated with account for diffraction and decay of coherency by roughness scattering in transitional boundary layer. In contrast to well-known Andronov-Leontovich…

Optics · Physics 2007-05-23 L. I. Ognev

Tunable nanopores in elastomeric membranes have been used to study the dependence of ionic current blockade rate on the concentration and electrophoretic mobility of particles in aqueous suspensions. A range of nanoparticle sizes, materials…

Soft Condensed Matter · Physics 2010-05-25 G R Willmott , R Vogel , S S C Yu , L G Groenewegen , G S Roberts , D Kozak , W Anderson , M Trau

The spatially resolved electrical transport properties have been studied on the surface of optimally-doped superconducting Ba(Fe1-xCox)2As2 single crystal by using a four-probe scanning tunneling microscopy. While some non-uniform contrast…

We present high-resolution optical birefringence measurements upon sequential filling of an array of parallel-aligned nanochannels (14~nm mean diameter) with rod-like (acetonitrile) and disc-like (hexafluorobenzene) molecules. We will…

Soft Condensed Matter · Physics 2015-03-17 Matthias Wolff , Klaus Knorr , Patrick Huber , Andriy V. Kityk

Background: Semiconductor-doped glasses are treated actively through many years and continue to be of great interest because challenged features of nanosized semiconductors of various chemical nature. Copper chalcogenides have discovered…

Mesoscale and Nanoscale Physics · Physics 2022-11-28 Valerij S. Gurin , Alexander A. Alexeenko

The vortex matter in bulk type-II superconductors serves as a prototype system for studying the random pinning problem in condensed matter physics. Since the vortex lattice is embedded in an atomic lattice, small angle neutron scattering…

Materials Science · Physics 2011-03-29 Xi Wang , Helen A. Hanson , Xinsheng Sean Ling , Charles F. Majkrzak , Brian B. Maranville

Simplified silica (Zeosil 1165 MP) and SBR (140k carrying silanol end-groups) nanocomposites have been formulated by mixing of a reduced number of ingredients with respect to industrial applications. The thermo-mechanical history of the…

High-resolution x-ray tomography is a common technique for biomedical research using synchrotron sources. With advancements in laboratory x-ray sources, an increasing number of experiments can be performed in the lab. In this paper, the…

Instrumentation and Detectors · Physics 2024-08-23 Till Dreier , Robin Krüger , Gustaf Bernström , Karin Tran-Lundmark , Isabel Gonçalves , Martin Bech

Nanocrystalline samples of pristine capped and uncapped zinc sulphide were synthesized via the sol-gel technique. The nanocrystallinity of the samples were confirmed by the X-ray diffraction technique, where size of the particle size…

Materials Science · Physics 2023-04-27 Samiran Mandal , Sk Irsad Ali , Subhamay Pramanik , Atis Chandra Mandal

The SAXS (small angle X-ray scattering) technique has been used to determine the fundamental structure of conducting thin films fabricated by implanting gold ions into PMMA (polymethylmethacrylate) polymer. We present a brief review of the…

Atomic and Molecular Clusters · Physics 2009-07-20 M. Cattani , M. C. Salvadori , F. S. Teixeira