Results 1 to 10 of about 200 (124)

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 ...
Yu Hao Wu, Chien-Yu Lee, Tzu-Chi Huang
exaly   +7 more sources

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-
Welter E, Levcenko S, E Welter
exaly   +12 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

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

ACS Omega
Rare-earth oxysulfides (RE2O2S, RE3+ = Y, La, Gd, Lu) are promising matrices for luminescent materials due to their high thermal and chemical stability, cost-effectiveness, and efficient sensitization of trivalent lanthanide ions, leading to high luminescent efficiency.
Karina T. Fonseca, Nataly S. Santos, Marcelo C. Portes, Fernando A. Garcia, Lucas C. V. Rodrigues   +4 more
doaj   +5 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

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

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, Wei-Rein Liu, Chien-Yu Lee, Bo-Yi Chen, Gung-Chian Yin, Wen-Feng Hsieh, Mau-Tsu Tang   +8 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

XEOL spectroscopy of lanthanides in aqueous solution [PDF]

Canadian Journal of Chemistry, 2017
As part of an ongoing study of the electronic interactions between solute and solvent molecules, a method for X-ray excited optical luminescence (XEOL) analysis of aqueous solutions was developed at the double-crystal monochromator beamline (DCM) of the Canadian Synchrotron Radiation Facility (CSRF).
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 ...
Marius Grundmann, Lukas Trefflich, Claudia S Schnohr   +2 more
exaly   +2 more sources

Real time observation of X-ray-induced surface modification using simultaneous XANES and XEOL-XANES. [PDF]

Anal Chem, 2013
In experiments preliminary to the design of an X-ray-excited optical luminescence (XEOL)-based chemical mapping tool we have used X-ray micro (4.5 × 5.2 μm) and macro (1 × 6 mm) beams with similar total fluxes to assess the effects of a high flux density beam of X-rays at energies close to an absorption edge on inorganic surfaces in air.
Adriaens A, Quinn P, Nikitenko S, Dowsett MG.   +3 more
europepmc   +4 more sources