Results 11 to 20 of about 217,541 (289)

White‐tailed Deer Signpost Photoluminescence [PDF]

open access: yesEcology and Evolution
Ultraviolet (UV) induced photoluminescence is widespread in Mammalia; however, its function(s) remain unclear. Most of the research to date has focused on the surface expression of photoluminescence (e.g., pelage), described qualitatively.
Daniel R. DeRose‐Broeckert   +3 more
doaj   +2 more sources

Photoluminescence lifetime in porous silicon

open access: yesTikrit Journal of Pure Science, 2023
Lifetime of photoluminescence emitted by porous silicon has been investigated by using pulsed nitrogen laser as excitation source. This research also involved sample preparation.
Adwan N. H. Al-Ajili
doaj   +1 more source

Influence of Gold Nanoantennas on the Photoluminescence of Silicon Nanocrystals

open access: yesPhotonics, 2022
We study the influence of gold nanoantennas on the photoluminescence signal of silicon nanocrystals. Unlike bulk silicon, which only exhibits low photoluminescence at room temperature due to its indirect band gap, silicon nanocrystals have the advantage ...
Ronja Köthemann   +3 more
doaj   +1 more source

Tunable blue-shift of the charge-transfer photoluminescence in tetrapod-shaped CdTe/CdSe nanocrystals

open access: yesResults in Physics, 2021
The photoluminescence peculiarities and the excited state absorption of the tetrapod-shaped CdTe/CdSe nanocrystals are studied in the single-photon excitation regime.
Anastasiya D. Golinskaya   +6 more
doaj   +1 more source

Excimer Laser Surface Patterning for Photoluminescence Enhancement of Silicon Nanocrystals

open access: yesPhotonics, 2023
A method for enhancing the photoluminescence of silicon nanocrystals in a silicon oxide matrix by fabrication of periodic surface structures through laser irradiation is demonstrated.
Lukas Janos Richter   +3 more
doaj   +1 more source

Control of yellow photoluminescence in AlGaN/GaN heterostructures [PDF]

open access: yesModern Electronic Materials, 2019
Photoluminescence with the peak corresponding to yellow color of the visible spectrum (so-called yellow luminescence) originates from deep levels in the GaN buffer layers of heterostructures and depends on heterostructure growth conditions.
Nadezhda B. Gladysheva   +4 more
doaj   +3 more sources

Multi-parameter temperature prediction based on optical fiber filled with CsPbX3 QDs

open access: yesAIP Advances, 2021
To expand the range of application of quantum dots in the field of temperature sensing, this paper proposed three kinds of temperature sensors based on CsPbX3 (X = Br, Br/I, and I) quantum dots filling into hollow-core fibers.
Shiyezi Xiang   +6 more
doaj   +1 more source

Gate-induced blueshift and quenching of photoluminescence in suspended single-walled carbon nanotubes [PDF]

open access: yes, 2011
Gate-voltage effects on photoluminescence spectra of suspended single-walled carbon nanotubes are investigated. Photoluminescence microscopy and excitation spectroscopy are used to identify individual nanotubes and to determine their chiralities.
Chiashi, S.   +6 more
core   +3 more sources

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

Optical properties and NIR Photoluminescence of Dy3+ doped CdS Q-dots dispersed in borosilicate glass for biophotonics applications [PDF]

open access: yesEPJ Web of Conferences
We synthesised CdS Q-dots and Dy3+ doped CdS Q-dots dispersed in borosilicate glasses and evaluated their optical and NIR photoluminescence properties.
Kumi Barimah Eric   +3 more
doaj   +1 more source

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