Results 21 to 30 of about 1,782 (177)

Interplay between Crystal Structure and Optical Response in Plateau–Rayleigh Zn2GeO4/SnO2 Heterostructures

Advanced Photonics Research, Volume 4, Issue 8, August 2023., 2023
Decorated semiconductor nanowires (NWs) are promising architectures for next‐generation nanoelectronic devices. Zn2GeO4/SnO2 NW architecture, which is produced by the Plateau–Rayleigh instability, is characterized by combining multiple synchrotron nano‐analysis techniques (nano X‐ray fluorescence, nano X‐ray‐excited optical luminescence, nano X‐ray ...
Jaime Dolado, Fernanda Malato, Jaime Segura-Ruiz, Ruth Martínez-Casado, María Taeño, Irina Snigireva, Pedro Hidalgo, Bianchi Méndez, Gema Martínez-Criado   +8 more
wiley   +1 more source

Electronic band gap reduction and intense luminescence in Co and Mn ion-implanted SiO$_2$ [PDF]

, 2014
Cobalt and manganese ions are implanted into SiO$_2$ over a wide range of concentrations. For low concentrations, the Co atoms occupy interstitial locations, coordinated with oxygen, while metallic Co clusters form at higher implantation concentrations ...
Gavrilov, N. V., Green, R. J., Kurmaev, E. Z., Moewes, A., Onge, D. J. St., Zatsepin, A. F., Zatsepin, D. A.   +6 more
core   +1 more source

A comparative study of optical properties and X-ray induced luminescence of octahedral molybdenum and tungsten cluster complexes [PDF]

, 2017
© 2017 The Royal Society of Chemistry. Octahedral metal cluster complexes have high potential for biomedical applications. In order to evaluate the benefits of these moieties for combined CT/X-ray luminescence computed tomography, this paper compares ...
Efremova, Olga A., Evtushok, Darya V., Kozyr, Konstantin V., Kretov, Evgeniy I., Kuratieva, Natalia V., Melnikov, Anatoly R., Mironov, Yuri V., Novozhilov, Igor N., Obedinskaya, Natalia R., Ryadun, Alexey A., Shestopalov, Michael A., Stass, Dmitri V., Vorotnikov, Yuri A., Vorotnikova, Natalya A.   +13 more
core   +1 more source

Quantification of very late xerostomia in head and neck cancer patients after irradiation

Laryngoscope Investigative Otolaryngology, Volume 7, Issue 4, Page 1018-1024, August 2022., 2022
We undertook preliminary studies quantifying xerostomia as a very late toxicity of radiation in HNC patients for use in a planned clinical trial. We found salivary quality of life surveys to differ significantly even 5 or more years after radiation, as did certain salivary compositional analyses. In the survivors of HNC who suffer from late toxicities,
Grace C. Blitzer, Nicole M. Rogus‐Pulia, Cristina Paz, Kwangok P. Nickel, Vanessa L. Cannaday, Cynthia A. Kelm‐Nelson, Sailendharan Sudakaran, Richard J. Chappell, Tiffany Glazer, Randall J. Kimple   +9 more
wiley   +1 more source

2D XAFS-XEOL Spectroscopy – Some recent developments

Journal of Physics: Conference Series, 2013
The use of optical photons to measure the modulation of the absorption coefficient upon X-ray excitation, or optical XAFS, is of particular interest for application to the study of light emitting semiconducting nanomaterials due to the additional information that may be gained.
M J Ward, J G Smith, T Z Regier, T K Sham   +3 more
openaire   +1 more source

Sistema para realização de medidas de luminescência com excitação por Raios X

Química Nova, 2011
In this work is presented a versatile system for X-ray excited optical luminescence (XEOL) measurements. The apparatus was assembled from a sample holder connected to an optical fiber responsibly for the acquisition of the scintillation signal.
Marco Aurélio Cebim, Higor Henrique de Souza Oliveira, Nilso Barelli, Marian Rosaly Davolos   +3 more
doaj   +1 more source

Nitrogen-Functionalized Graphene Nanoflakes (GNFs:N): Tunable Photoluminescence and Electronic Structures

, 2012
This study investigates the strong photoluminescence (PL) and X-ray excited optical luminescence observed in nitrogen-functionalized 2D graphene nanoflakes (GNFs:N), which arise from the significantly enhanced density of states in the region of {\pi ...
A. Ganguly, A. Kumar, B. Y. Wang, C. H. Chuang, C. W. Chen, C. W. Pao, Cancado L. G., Carlisle J. A., Chien C.-T., Chiou J. W., Cuong T. V., Eda G., Elias D. C., Ferrari A. C., Gan Z. X., Geim A. K., Geng D., Gokus T., H. M. Tsai, H. Yamane, H.-J. Lin, Haberer D., Han M. Y., J. W. Chiou, Jeong H.-K., K.-H. Chen, L. Liu, L.-C. Chen, Li X., Liu L., Lui C. H., Luo Z. T., M.-H. Tsai, Mattevi C., N. Kosugi, Novoselov K. S., P. Papakonstantinou, Pacilé D, Pao C. W., Pao C. W., Park S., Ponomarenko L. A., Ray S. C., Ray S. C., Ray S. C., Robertson J., Ronning C., S. C. Chen, S. I. Peng, Sekhar C. Ray, Sham T. K., Skytt P., Sun C. L., T. K. Sham, T. Regier, Tian J., Usachov D., van Veenendaal M., W. F. Pong, Wang Y., Ward M. J., Wei D., Wen J., Y. C. Shao, Y. C. Yeh, Y. F. Wang, Yan J.-A., Yan J.-A., Zhou J. G.   +68 more
core   +1 more source

Mechanism of X-ray excited optical luminescence in NaGdF4-based nanoparticles

Results in Physics
X-ray irradiating rare-earth nanoparticles could emit fluorescence (∼50 keV) and luminescence (∼eV) photons simultaneously. Utilizing this phenomenon, it is expected to achieve online multi-modal imaging and integrated radiation and photodynamic therapy ...
Jiadan Song, Fanyuan Xu, Bang Yao, Hongbing Lu, Wenli Zhang, Liang Li   +5 more
doaj   +1 more source

Nanoscale x-ray absorption spectroscopy using XEOL-SNOM detection mode

Journal of Physics: Conference Series, 2007
The first results obtained with the prototype system at the synchrotron beamline ID03 at ESRF are presented and illustrate the possibility to detect an element-specific contrast and to perform nanoscale x-ray absorption spectroscopy experiments at the Zn K and W L 3 absorption edges in mixed zinc oxide-zinc tungstate thin films.
D. Pailharey, Y. Mathey, F. Jandard, S. Larcheri, F. Rocca, A. Kuzmin, R. Kalendarev, J. Purans, Dalba, Giuseppe, Graziola, Roberto, O. Dhez   +10 more
openaire   +2 more sources

Probing the exotic emission behaviors of Gd3+ ions in Gd3Ga5O12 wafer via X-ray excited optical luminescence

Results in Optics
We investigate the exotic emission behaviors of gadolinium gallium garnet (Gd3Ga5O12, GGG) wafer via X-ray absorption near edge structure (XANES) and X-ray excited optical luminescence (XEOL) in an X-ray nanoprobe beamline. The XANES spectra of the Gd L3
Tzu-Chi Huang, Wei-Lun Wei, Sunny Saurabh, Yu-Hao Wu, Chen-Wei Lin, Yi-Chen Li, Chien-Yu Lee, Bo-Yi Chen, Gung-Chian Yin, Mau-Tsu Tang, Wu-Ching Chou, Bi-Hsuan Lin   +11 more
doaj   +1 more source