Bound excitons in ZnO: Structural defect complexes versus shallow impurity centers

MR Wagner, G Callsen, JS Reparaz, JH Schulze… - Physical Review B …, 2011 - APS
ZnO single crystals, epilayers, and nanostructures often exhibit a variety of narrow emission
lines in the spectral range between 3.33 and 3.35 eV which are commonly attributed to …

[HTML][HTML] Waste PET plastic derived ZnO@ NMC nanocomposite via MOF-5 construction for hydrogen and oxygen evolution reactions

M Ubaidullah, AM Al-Enizi, S Shaikh… - Journal of King Saud …, 2020 - Elsevier
Waste PET plastic is the main solid waste to deteriorate the environment. Herein, we have
utilized waste PET plastic to synthesize nitrogen doped mesoporous carbon functionalized …

[HTML][HTML] Simultaneous measurement of temperature, stress, and electric field in GaN HEMTs with micro-Raman spectroscopy

KR Bagnall, EA Moore, SC Badescu, L Zhang… - Review of Scientific …, 2017 - pubs.aip.org
As semiconductor devices based on silicon reach their intrinsic material limits, compound
semiconductors, such as gallium nitride (GaN), are gaining increasing interest for high …

Optical signature of Mg-doped GaN: Transfer processes

G Callsen, MR Wagner, T Kure, JS Reparaz… - Physical Review B …, 2012 - APS
Mg do** of high quality, metal organic chemical vapor deposition grown GaN films results
in distinct traces in their photoluminescence and photoluminescence excitation spectra. We …

Effects of strain on the valence band structure and exciton-polariton energies in ZnO

MR Wagner, G Callsen, JS Reparaz, R Kirste… - Physical Review B, 2013 - APS
The uniaxial stress dependence of the band structure and the exciton-polariton transitions in
wurtzite ZnO is thoroughly studied using modern first-principles calculations based on the …

Manifestation of Eu Dopants in Raman Spectra and Do** Concentration Profiles of {ZnCdO/ZnO} Superlattices

I Perlikowski, E Zielony, A Lysak, R Jakieła… - Crystal Growth & …, 2024 - ACS Publications
In this study, we investigated Eu-doped {ZnCdO/ZnO} superlattice structures grown by
plasma-assisted molecular beam epitaxy. Such materials may find their use in thin-film solar …