Characterization of nanoparticles through medium-energy ion scattering

MA Sortica, PL Grande, G Machado… - Journal of Applied Physics, 2009 - pubs.aip.org
In this work we review the use of the medium-energy ion scattering (MEIS) technique to
characterize nanostructures at the surface of a substrate. We discuss here how the …

Spin and energy relaxation in germanium studied by spin-polarized direct-gap photoluminescence

F Pezzoli, L Qing, A Giorgioni, G Isella, E Grilli… - Physical Review B …, 2013 - APS
Spin orientation of photoexcited carriers and their energy relaxation are investigated in bulk
Ge by studying spin-polarized recombination across the direct band gap. The control over …

[HTML][HTML] Nanoparticle emission by electronic sputtering of CaF2 single crystals

I Alencar, M Hatori, GG Marmitt, H Trombini… - Applied Surface …, 2021 - Elsevier
Material sputtered from CaF 2 single crystals by 180 MeV Au ions impinging at different
incidence angles were collected on high-purity amorphous C-coated Cu grids and Si 1 0 0 …

The mechanism of emerging catalytic activity of gold nano-clusters on rutile TiO2 (110) in CO oxidation reaction

K Mitsuhara, M Tagami, T Matsuda… - The Journal of …, 2012 - pubs.aip.org
This paper reveals the fact that the O adatoms (O ad) adsorbed on the 5-fold Ti rows of rutile
TiO 2 (110) react with CO to form CO 2 at room temperature and the oxidation reaction is …

Au (core)/Pd (shell) structures analyzed by high-resolution medium energy ion scattering

H Matsumoto, K Mitsuhara, A Visikovskiy, T Akita… - Nuclear Instruments and …, 2010 - Elsevier
Bimetallic nano-particles taking a core/shell structure dispersed on metal-oxide supports
work more efficiently than the mono-metallic ones as heterogeneous catalyst. In order to …

The structure and growth process of Au/Si (1 1 1) analyzed by high-resolution ion scattering coupled with photoelectron spectroscopy

Y Hoshino, Y Kitsudo, M Iwami, Y Kido - Surface science, 2008 - Elsevier
We analyzed both the elemental depth profile and chemical bonds of Au/p-Si (111)-7× 7
grown at room temperature by medium energy ion scattering combined with photoelectron …

Structural control of gold nanoparticles self-assemblies by layer-by-layer process

G Machado, AF Feil, P Migowski, L Rossi, M Giovanela… - Nanoscale, 2011 - pubs.rsc.org
This work presents a novel way to introduce gold nanoparticles (Au NPs) in a multilayer
polymer produced by the layer-by-layer (LbL) assembling technique. The technique chosen …

Structural characterization of CdSe/ZnS quantum dots using medium energy ion scattering

MA Sortica, PL Grande, C Radtke, LG Almeida… - Applied Physics …, 2012 - pubs.aip.org
In the present work, we have analyzed CdSe/ZnS core-shell quantum dots by medium
energy ion scattering (MEIS), which is a powerful technique to explore the synthesis …

High resolution medium energy ion scattering analysis for the quantitative depth profiling of ultrathin high-k layers

MA Reading, JA Van den Berg, PC Zalm… - Journal of Vacuum …, 2010 - pubs.aip.org
Ultrathin high-k layers such as hafnium oxide (Hf O 2) in combination with a subnanometer
Si O 2 or Hf silicate have emerged as Si compatible gate dielectric materials. Medium …

The Interplay between Strain, Sn Content, and Temperature on Spatially Dependent Bandgap in Ge1−x Sn x Microdisks

I Zaitsev, AA Corley-Wiciak… - physica status solidi …, 2024 - Wiley Online Library
Germanium–tin (GeSn) microdisks are promising structures for complementary metal–oxide–
semiconductor‐compatible lasing. Their emission properties depend on Sn concentration …