Results 1 to 10 of about 150 (92)

High-resolution XEOL spectroscopy setup at the X-ray absorption spectroscopy beamline P65 of PETRA III [PDF]

Journal of Synchrotron Radiation, 2022
A newly designed setup to perform steady-state X-ray excited optical luminescence (XEOL) spectroscopy and simultaneous XEOL and X-ray absorption spectroscopy characterization at beamline P65 of PETRA III is described. The XEOL setup is equipped with a He-
S Levcenko, Susanne Siebentritt, E Welter   +2 more
exaly   +5 more sources

Combination of XEOL, TR-XEOL and HB-T interferometer at the TPS 23A X-ray nanoprobe for exploring quantum materials [PDF]

Journal of Synchrotron Radiation
In this study, a combination of X-ray excited optical luminescence (XEOL), time-resolved XEOL (TR-XEOL) and the Hanbury-Brown and Twiss (HB-T) interferometer at the Taiwan Photon Source (TPS) 23A X-ray nanoprobe beamline for exploring quantum materials ...
Tzu-Chi Huang
exaly   +5 more sources

Spatially Resolved Dynamics of Cobalt Color Centers in ZnO Nanowires [PDF]

Advanced Science, 2023
The dynamics of color centers, being a promising quantum technology, is strongly dependent on the local environment. A synergistic approach of X‐ray fluorescence analysis and X‐ray excited optical luminescence (XEOL) using a hard X‐ray nanoprobe is ...
Christian T. Plass, Valentina Bonino, Maurizio Ritzer, Lukas R. Jäger, Vicente Rey‐Bakaikoa, Martin Hafermann, Jaime Segura‐Ruiz, Gema Martínez‐Criado, Carsten Ronning   +8 more
doaj   +3 more sources

Visualizing the valence states of europium ions in Eu-doped BaAl2O4 using X-ray nanoprobe mapping [PDF]

Journal of Synchrotron Radiation, 2022
This study develops and successfully demonstrates visualization methods for the characterization of europium (Eu)-doped BaAl2O4 phosphors using X-ray nanoprobe techniques.
Yu-Hao Wu, Yung-Yang Lin, Jeng-Lung Chen, Shih-Yu Fu, Shu-Chi Huang, Chien-yu Lee, Bo-Yi Chen, Gung-Chian Yin, E-Wen Huang, Mau-Tsu Tang, Bi-Hsuan Lin   +10 more
doaj   +2 more sources

Controlled Synthesis of Cs₂NaYF₆: Tb Nanoparticles for High-Resolution X-Ray Imaging and Molecular Detection [PDF]

Nanomaterials
Rare-earth-doped fluoride nanoparticles (NPs), known for their tunable luminescence and high chemical stability, hold significant potential for applications in X-ray imaging and radiation dose monitoring.
Jian Zhao, Kunyang Wang, Wenhui Chen, Deyang Li, Lei Lei   +4 more
doaj   +2 more sources

Multimodal Imaging of Strain and Light Emission of Core–Shell InGaN/GaN Wires under a Sub‐Micrometer Polychromatic X‐Ray Probe

Advanced Materials Interfaces
We present a combination of µLaue X‐ray diffraction and X‐ray excited optical luminescence (XEOL) techniques to map local strain, orientation, and light emission in metalorganic vapor phase epitaxy (MOVPE) core–shell InGaN/GaN multiple quantum wells (MQW)
Beatriz deGoes Foschiani, Sergio Bongiorno, Odile Robach, Olivier Ulrich, Jean‐Sébastien Micha, Joël Eymery   +5 more
doaj   +2 more sources

Observation of anomalous emissions of nonpolar a-plane MgZnO and ZnO epi-films based on XEOL and time-resolved XEOL in hybrid bunch mode

AIP Advances, 2020
X-ray excited optical luminescence (XEOL) using an x-ray nanobeam operating in the hybrid bunch mode provides not only a sufficiently high peak power density but also high-quality temporal domain measurements for studying the luminescence dynamics of ...
Bi-Hsuan Lin, Yu-Hao Wu, Yung-Chi Wu
exaly   +2 more sources

Role of sample thickness and self-absorption effects in simultaneous XEOL-XAS measurements on single crystalline ZnO and GaN

Physical Review Research
The x-ray excited optical luminescence (XEOL) for defect and near band edge (NBE) transitions combined with simultaneous x-ray absorption measurements are experimentally and theoretically studied on single crystalline ZnO and GaN across the Zn and Ga K ...
S Levcenko, Konrad Ritter, Hans H Falk
exaly   +2 more sources

XEOL and Persistent Luminescence in Eu- and Ti-Doped Lu2O2S Materials [PDF]

ACS Omega
Karina T. Fonseca, Nataly S. Santos, Marcelo C. Portes, Fernando A. Garcia, Lucas C. V. Rodrigues   +4 more
doaj   +2 more sources

Toward Noninvasively Imaging pH at the Surface of Implanted Orthopedic Devices in Live Rabbits Using X-ray Excited Luminescence Chemical Imaging. [PDF]

Adv Healthc Mater
Imaging pH in a live rabbit at the surface of a sensor‐coated titanium plate using X‐ray excited luminescent chemical imaging (XELCI). A raster scanning X‐ray beam generates radioluminescence from a spot on the sensor, and the luminescence passes through the tissue and is collected at two wavelengths to determine local pH.
Uzair U, Wang F, Benza D, Raval YS, Bhattacharya S, Tzeng TJ, Anker JN.   +6 more
europepmc   +2 more sources