Enhanced Luminescence of Yb3+ Ions Implanted to ZnO through the Selection of Optimal Implantation and Annealing Conditions

R Ratajczak, E Guziewicz, S Prucnal, C Mieszczynski… - Materials, 2023 - mdpi.com
Rare earth-doped zinc oxide (ZnO: RE) systems are attractive for future optoelectronic
devices such as phosphors, displays, and LEDs with emission in the visible spectral range …

MROX 2.0: a software tool to explore quantum heterostructures by combining X-ray reflectivity and diffraction

S Magalhães, C Cachim, PD Correia, F Oliveira… - …, 2023 - pubs.rsc.org
New software for the simulation and fitting of specular X-ray reflectivity (XRR) measurements
has been developed. The novel software employs the recursive formalism of the dynamical …

Damage in InGaN/GaN bilayers upon Xe and Pb swift heavy ion irradiation

P Jóźwik, JPS Cardoso, DF Carvalho… - Physical Chemistry …, 2022 - pubs.rsc.org
350 nm and 550 nm thick InGaN/GaN bilayers were irradiated with different energies (from∼
82 to∼ 38 MeV) of xenon (129Xe) ions and different fluences of 1.2 GeV lead (208Pb) ions …

Advanced Monte Carlo simulations for ion-channeling studies of complex defects in crystals

P Jozwik, L Nowicki, R Ratajczak… - Theory and Simulation …, 2020 - Springer
This chapter describes the most important features of computational software called
'McChasy', which is a Monte Carlo (MC) simulation code developed for the evaluation of the …

Electrical properties of ZnO films implanted with rare earth and their relationship with structural and optical parameters

TA Krajewski, R Ratajczak, S Kobyakov… - Materials Science and …, 2022 - Elsevier
Abstract ZnO implanted with Rare Earth (RE) ions has a potential application as phosphor or
in white light sources. The paper discusses the structural, optical and electrical changes …

Structural analysis of the ZnO/MgO superlattices on a-polar ZnO substrates grown by MBE

M Stachowicz, A Wierzbicka, JM Sajkowski… - Applied Surface …, 2022 - Elsevier
The analysis of heteroepitaxially grown ZnO/MgO superlattices on a-oriented ZnO substrates
was described. The influence of unalike natural crystalline structures of ZnO and MgO on the …

Multiple reflection optimization package for x-ray diffraction

S Magalhães, JS Cabaço, JP Araújo, E Alves - CrystEngComm, 2021 - pubs.rsc.org
A new software package titled Multiple Reflection Optimization for X-ray Diffraction (MROX)
to simulate and fit multiple reflections simultaneously, as well as single reflections is …

Correlations between the structural transformations and concentration quenching effect for RE-implanted ZnO systems

R Ratajczak, C Mieszczynski, S Prucnal… - Applied Surface …, 2020 - Elsevier
In this paper, we present optical, structural and electrical studies of the phenomenon called
concentration quenching effect occurring in ZnO doped with Rare Earth (RE) ions. For this …

Crystal mosaicity determined by a novel layer deconvolution Williamson–Hall method

S Magalhães, JS Cabaço, R Mateus, DN Faye… - …, 2021 - pubs.rsc.org
The application of conventional Williamson–Hall (WH) plot analysis to crystals often results
in broadening not proportional to the scattering length vector. Several reasons may …

Confronting Vegard's rule in Ge1− x Sn x epilayers: from fundamentals to the effect of defects

S Magalhaes, M Dias, B Nunes, F Oliveira… - Journal of Physics D …, 2022 - iopscience.iop.org
Comprehensive and systematic study challenging the application of Vegard's rule to
germanium tin solid solutions grown on germanium buffer layers and 100 silicon substrates …