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We report here investigations on the instability in luminescence of bare (TOPO-stabilized) and CdS- capped CdSe particles under infrared radiation. During photo-thermal annealing the formation of oxide layers on the surfaces of the…

Materials Science · Physics 2009-11-11 A. Singha , A. Roy

CdS nanotubes with wall thickness comparable to excitonic diameter of the bulk material are synthesized by a chemical route. A change in experimental conditions result in formation of nanowires, and well-separated nanoparticles. The…

Materials Science · Physics 2009-02-16 A. K. Mahapatra

Coupling of atoms is the basis of chemistry, yielding the beauty and richness of molecules. We utilize semiconductor nanocrystals as artificial atoms to form nanocrystal molecules that are structurally and electronically coupled. CdSe/CdS…

We present a systematic study of core-shell Au/Fe_3O_4 nanoparticles produced by thermal decomposition under mild conditions. The morphology and crystal structure of the nanoparticles revealed the presence of Au core of <d> = (6.9\pm 1.0)…

We report the synthesis and optical characterization of fully inorganic gradientshell CdSe/CdZnS nanocrystals (NCs) with high luminescence quantum yield (QY, 50 percent), which were obtained by replacing native oleic-acid (OA) ligands with…

Materials Science · Physics 2021-11-03 Justine Baronnier , Benoit Mahler , Christophe Dujardin , Florian Kulzer , Julien Houel

The complexity and richness of phenomena governing alloy crystal growth can be unraveled by examining the three-dimensional atomic-level distribution of elements and impurities incorporated during growth. These species act as atomic…

SnTe is a topological crystalline insulator that possesses spin-polarized, Dirac-dispersive surface states protected by crystal symmetry. Multiple surface states exist on the {100}, {110}, and {111} surfaces of SnTe, with the band structure…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 Jie Shen , Yeonwoong Jung , Ankit S. Disa , Fred J. Walker , Charles H. Ahn , Judy J. Cha

Germanium telluride (GeTe), a phase-change material, is known to exhibit four different structural phases: three at room temperature (one amorphous and two crystalline, $\alpha$ and $\gamma$) and one at high temperature (crystalline…

High-performance solution-processed short-channel carbon nanotube (CNT) thin film transistors (TFTs) are fabricated using densely aligned arrays of metallic CNTs (m-CNTs) as source and drain electrodes, and aligned arrays of semiconducting…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Biddut K. Sarker , Narae Kang , Saiful I. Khondaker

In view of potential applications of magnetic particles in biomedicine and electromagnetic devices, we made use of the classical Stober method base-catalysed hydrolysis and condensation of tetraethoxysilane (TEOS) to encapsulate FeNi…

Materials Science · Physics 2009-11-13 M Ammar , F Mazaleyrat , J P Bonnet , P Audebert , A Brosseau , G Wang , Y Champion

Outstanding optoelectronic properties and a facile synthesis render halide perovskite nanocrystals (NCs) a promising material for nanostructure-based devices. However, the commercialization is hindered mainly by the lack of NC stability…

Mesoscale and Nanoscale Physics · Physics 2022-09-26 Michèle G. Greiner , Andreas Singldinger , Nina A. Henke , Carola Lampe , Ulrich Leo , Moritz Gramlich , Alexander S. Urban

We report the interactions of cationic latex particles synthesized by RAFT/MADIX-mediated emulsion polymerization with anionic cellulose nanocrystals (CNCs) and cotton fabrics. Latexes in the size range 200-300 nm with poly(butyl acrylate)…

One-dimensional Ni/Ni3C core-shell nanoball chains with an average diameter by around 30 nm were synthesized by means of a mild chemical solution method using a soft template of trioctylphosphineoxide (TOPO). It was revealed that the…

Materials Science · Physics 2015-05-13 Wei Zhou , Lin He , Rongming Wang , Kun Zheng , Lin Guo , Chinping Chen , Xiaodong Han , Ze Zhang

The pursuit to operate photocathodes at high accelerating gradients to increase brightness of electron beams is gaining interests within the accelerator community. Cesium telluride (Cs2Te) is a widely used photocathode material and it is…

This investigation deals with the effect of growth temperature on the growth behavior of Fe filled multiwalled carbon nanotubes (MWCNTs). Carbon nanotube (CNT) synthesis was carried out in a thermal chemical vapor deposition (CVD) reactor…

Materials Science · Physics 2019-08-07 Joydip Sengupta , Chacko Jacob

The controlled growth of carbon nitride (CN) films with tailored electronic properties and surface area is quite challenging due to the solid-state reaction and the lack of efficient interaction between C-N monomers and substrates. Herein,…

Applied Physics · Physics 2021-07-19 Neeta Karjule , Moumita Rana , Menny Shalom , Jesús Barrio , Juan Jos'{e} Vilatela

Nanoplatelets open up a wide range of possibilities for building materials with novel properties linked to their shape anisotropy. A challenge consists of controlling dynamically the order of positioning and orientation in three dimensions…

Soft Condensed Matter · Physics 2025-10-08 Imane Boucenna , Florent Carn , Ahmed Mourchid

The preparation method of thermoelectric PbTe-CdTe semiconductor nanocomposite in the form of a bulk material doped with Bi, I or Na, intended for production the mid-temperature thermoelectric energy generators is presented. The method…

Materials Science · Physics 2023-06-16 M. Szot , K. Dybko , A. Mycielski , A. Reszka , R. Minikayev , P. Dziawa , T. Story

Being inspired by a recent study [V. Dimitriadis et al. Phys. Rev. B \textbf{92}, 064420 (2015)], we study the finite temperature magnetic properties of the spherical nanoparticles with core-shell structure including quenched (i) surface…

Statistical Mechanics · Physics 2017-06-28 E. Vatansever , Y. Yuksel

Liquid Crystal Elastomers with near-ambient temperature-responsiveness (NAT-LCEs) have been extensively studied for building bio-compatible, low-power consumption devices and robotics. However, conventional manufacturing methods face…