Implanting germanium into graphene

M Tripathi, A Markevich, R Böttger, S Facsko… - ACS …, 2018 - ACS Publications
Incorporating heteroatoms into the graphene lattice may be used to tailor its electronic,
mechanical and chemical properties, although directly observed substitutions have thus far …

Direct evaluation of the quantum confinement effect in single isolated Ge nanocrystals

O Millo, I Balberg, D Azulay, TK Purkait… - The journal of …, 2015 - ACS Publications
To address the yet open question regarding the nature of quantum confinement in Ge
nanocrystals (Ge NCs) we employed scanning tunneling spectroscopy to monitor the …

Quantum Confinement Effect in a Nanoscale Mo/Si Multilayer Structure

N Kumar, AT Kozakov, AV Nezhdanov… - The Journal of …, 2020 - ACS Publications
In a condensed matter system, phonons and plasmons are well-known quasiparticles that
represent unusual dispersion behavior of energy and momentum at nanoscales. In a …

Phonon, plasmon and electronic properties of surfaces and interfaces of periodic W/Si and Si/W multilayers

N Kumar, AT Kozakov, AV Nezhdanov… - Physical Chemistry …, 2021 - pubs.rsc.org
The phonon and plasmon excitations and electronic properties of interfaces of periodic W/Si
and Si/W multilayer structures were investigated. The Boson band originated from quasilocal …

Quantum confinement in nonadditive space with a spatially dependent effective mass for Si and Ge quantum wells

EG Barbagiovanni, RN Costa Filho - Physica E: Low-dimensional Systems …, 2014 - Elsevier
We calculate the effect of a spatially dependent effective mass (SPDEM)[adapted from Costa
Filho et al.(2011)] on an electron and a hole confined in a quantum well (QW). In the work of …

The role of the interface in germanium quantum dots: when not only size matters for quantum confinement effects

S Cosentino, AM Mio, EG Barbagiovanni, R Raciti… - Nanoscale, 2015 - pubs.rsc.org
Quantum confinement (QC) typically assumes a sharp interface between a nanostructure
and its environment, leading to an abrupt change in the potential for confined electrons and …

X-ray photoelectron studies of near surface oxidation and plasmon excitation in spatially confined bi-and tri-layers periodic multilayer mirrors

N Kumar, AT Kozakov, RM Smertin, VN Polkovnikov… - Thin Solid Films, 2021 - Elsevier
The alternate bi-and tri-layers nanoscale periodic multilayers of Mo/Si, Mo/Be and Mo/Be/Si
are useful for the high reflectivity mirrors, operating effectively around 13.5 nm of …

Evolution of microstructural defects with strain effects in germanium nanocrystals synthesized at different annealing temperatures

M Zhang, R Cai, Y Zhang, C Wang, Y Wang… - Materials …, 2014 - Elsevier
Ge nanocrystals (Ge-ncs) were produced by implantation of 74 Ge+ into a SiO 2 film on
(100) Si, followed by high-temperature annealing from 700° C to 1100° C. Transmission …

Quantitative parameters for the examination of InGaN QW multilayers by low-loss EELS

A Eljarrat, L López-Conesa, C Magén… - Physical Chemistry …, 2016 - pubs.rsc.org
We present a detailed examination of a multiple InxGa1− xN quantum well (QW) structure for
optoelectronic applications. The characterization is carried out using scanning transmission …

Deep-level sensitization in Ge-SiO2 composite films observed by photocurrent spectroscopy

O Wolf, I Balberg, O Millo - Thin Solid Films, 2015 - Elsevier
We studied the temperature dependence of the photocurrent spectra of a Ge-SiO 2
composite thin film. We found that the spectral position of the photocurrent peak is …