Lattice strain and defects analysis in nanostructured semiconductor materials and devices by high‐resolution X‐ray diffraction: Theoretical and practical aspects

S Dolabella, A Borzì, A Dommann, A Neels - Small Methods, 2022 - Wiley Online Library
The reliability of semiconductor materials with electrical and optical properties are
connected to their structures. The elastic strain field and tilt analysis of the crystal lattice …

Effect of the lattice mismatch on threading dislocations in heteroepitaxial GaN layers revealed by X-ray diffraction

C Romanitan, I Mihalache, O Tutunaru… - Journal of alloys and …, 2021 - Elsevier
In this study, structural investigations of the mismatched gallium nitride (GaN) layers grown
on SiC, Al 2 O 3 and Si substrate, were performed employing x-ray diffraction techniques …

Leakage currents and Fermi-level shifts in GaN layers upon iron and carbon-doping

A Fariza, A Lesnik, S Neugebauer, M Wieneke… - Journal of Applied …, 2017 - pubs.aip.org
Semi-insulating GaN is a prerequisite for lateral high frequency and high power electronic
devices to isolate the device region from parasitic conductive channels. The commonly used …

The Impact of AlxGa1−xN Back Barrier in AlGaN/GaN High Electron Mobility Transistors (HEMTs) on Six-Inch MCZ Si Substrate

HY Wang, HC Chiu, WC Hsu, CM Liu, CY Chuang… - Coatings, 2020 - mdpi.com
In this study, AlGaN/GaN high electron mobility transistors (HEMTs) with AlGaN back
barriers (BB) were comprehensively investigated based on the different Al mole fractions …

Unravelling the strain relaxation processes in silicon nanowire arrays by X-ray diffraction

C Romanitan, M Kusko, M Popescu… - Journal of Applied …, 2019 - journals.iucr.org
Investigations performed on silicon nanowires of different lengths by scanning electron
microscopy revealed coalescence processes in longer nanowires. Using X-ray diffraction …

Density of bunched threading dislocations in epitaxial GaN layers as determined using X-ray diffraction

M Barchuk, V Holý, D Rafaja - Journal of Applied Physics, 2018 - pubs.aip.org
X-ray diffraction is one of the most popular experimental methods employed for
determination of dislocation densities, as it can recognize both the strain fields and the local …

The effects of two-stage HT-GaN growth with different V/III ratios during 3D–2D transition

I Altuntas, I Demir, AE Kasapoğlu… - Journal of Physics D …, 2017 - iopscience.iop.org
The aim of the study is to understand the effects of two stages of HT-GaN growth with
different V/III ratios on optical, chemical and structural characteristics of the HT-GaN layer. In …

Growth and thermal annealing for acceptor activation of p-type (Al) GaN epitaxial structures: Technological challenges and risks

S Zlotnik, J Sitek, K Rosiński, PP Michałowski… - Applied Surface …, 2019 - Elsevier
III-nitride materials, such as ternary alloys of gallium nitride (GaN) and aluminum nitride
(AlN), are the prominent semiconductor systems in research and industry due to their …

Characteristic analysis of algan/gan hemt with composited buffer layer on high-heat dissipation poly-aln substrates

CR Huang, HC Chiu, CH Liu, HC Wang, HL Kao… - Membranes, 2021 - mdpi.com
In this study, an AlGaN/GaN high-electron-mobility transistor (HEMT) was grown through
metal organic chemical vapor deposition on a Qromis Substrate Technology (QST). The …

Modification of elastic deformations and analysis of structural and optical changes in Ar+-implanted AlN/GaN superlattices

O Liubchenko, T Sabov, V Kladko, V Melnik… - Applied …, 2020 - Springer
The effects of built-in deformation and stress relaxation on the structural and optical
properties for a 21-period AlN/GaN superlattice (SL) after implantation with argon ions have …