Results 21 to 30 of about 134,154 (310)

Photoluminescent SiC Tetrapods

open access: yesNano Letters, 2013
Recently, significant research efforts have been made to develop complex nanostructures to provide more sophisticated control over the optical and electronic properties of nanomaterials. However, there are only a handful of semiconductors which allow control over their geometry via simple chemical processes.
Magyar, Andrew P.   +3 more
openaire   +3 more sources

Ligand Assisted Control of Photoluminescence in Organometal Perovskite Nanocrystals

open access: yesEurasian Chemico-Technological Journal, 2021
Organometal perovskite nanocrystals have shown remarkable properties not only in photovoltaics, but also in light-emitting devices. In this work colloidal nanocrystals of organometal perovskite CH3NH3PbBr3 (MAPBr) with effective visible photoluminescence
K.S. Sekerbayev   +3 more
doaj   +1 more source

Photoluminescence of a Plasmonic Molecule [PDF]

open access: yesACS Nano, 2015
Photoluminescent Au nanoparticles are appealing for biosensing and bioimaging applications because of their non-photobleaching and non-photoblinking emission. The mechanism of one-photon photoluminescence from plasmonic nanostructures is still heavily debated though.
Da, Huang   +9 more
openaire   +3 more sources

Making Graphene Luminescent by Oxygen Plasma Treatment [PDF]

open access: yes, 2009
We show that strong photoluminescence (PL) can be induced in single-layer graphene using an oxygen plasma treatment. The PL is spatially uniform across the flakes and connected to elastic scattering spectra distinctly different from those of gapless ...
Novoselov, K. S.   +21 more
core   +1 more source

Influence of the synthesis conditions on the photoluminescence of silica gels [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
The photoluminescence spectra of silica xerogel samples synthesized with ethanol as solvent and xerogel where the ethanol was exchanged by water before drying are reported.
IVANA HINIC   +2 more
doaj   +3 more sources

Evolution of Oxygen Deficiency Center on Fused Silica Surface Irradiated by Ultraviolet Laser and Posttreatment [PDF]

open access: yes, 2014
Evolution of oxygen deficiency centers (ODCs) on a fused silica surface irradiated using a 355 nm ultraviolet (UV) laser beam in both vacuum and atmospheric conditions was quantitatively studied using photoluminescence and X-ray photoelectron ...
Hai-Bing Lü   +11 more
core   +1 more source

Study the Effect of Different Silicon Substrate Resistivities on the Photoluminescence Results

open access: yesJournal of Kufa-Physics, 2019
The silicon-based electroluminescent devices are most commonly used in recent years, especially in optical equipment. The physical properties of the photoluminescence are investigated experimentally in this paper.
Najwan Hussein Numan
doaj   +1 more source

Photoluminescence control by hyperbolic metamaterials and metasurfaces: a review

open access: yesOpto-Electronic Advances, 2021
Photoluminescence including fluorescence plays a great role in a wide variety of applications from biomedical sensing and imaging to optoelectronics.
Leonid Yu. Beliaev   +3 more
doaj   +1 more source

Nonoxide Sol-Gel Synthesis of Terbium-Doped Silicon Nitride Phosphors

open access: yes, 2009
Exposure of solutions of Tb(N(SiMe3)2)3 with SiCl(NEt2)3 in tetrahydrofuran to dry ammonia results in polymeric xerogels. Heating these gels in ammonia leads to amorphous Tb:SiNx phosphors that exhibit bright green luminescence under UV irradiation.
Hector, Andrew L.   +3 more
core   +1 more source

Variable-temperature photoluminescence emission instrumentation and measurements on low yield metals [PDF]

open access: yes, 2010
Measurements of the photoluminescence emission spectra of 99.999 % purity gold, 99.9999 % purity copper, polycrystalline PbMo6S8 and single crystal YBCO were made for λex = 488 nm as a function of temperature (72 K < T < 300 K), time (t < 12 hours ...
ARMSTRONG, HELEN
core  

Home - About - Disclaimer - Privacy