Downshifting ds luminescence
WebLanthanide upconversion luminescence is an anti-Stokes shift process where lanthanide ions absorb lower energy photons and emit higher energy photons, while downshifting … WebDec 10, 2024 · The up-conversion (UC) photoluminescence, down-shifting (DS) luminescence, phosphorescence, and decay curves of characteristic emission peaks of Er3+ ions (551 nm) of DS process at room temperature was measured by a fluorescence spectrometer (Hitachi F-7100) equipped with a 980 nm laser.
Downshifting ds luminescence
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WebApr 1, 2016 · We describe a metal nanodisk-insulator-metal (MIM) structure that enhances lanthanide-based upconversion (UC) and downshifting (DS) simultaneously. The structure was fabricated using a nanotransfer… 60 Highly plasmon-enhanced upconversion emissions from Au@β-NaYF4:Yb,Tm hybrid nanostructures. Ning Liu, W. Qin, G. Qin, … To investigate the NTE effect on the DS emission, the temperature-dependent DS excitation spectra of the Sc2(MoO4)3:20%Yb/1%Er phosphors were measured by monitoring the emission of Er3+ at 1538 nm (Supplementary Fig. 5). Accordingly, the intensity of the excitation peak increased with the temperature … See more Sc2(MoO4)3:Yb/Er phosphors were synthesized via a sol-gel method. The basic structures of the Sc2(MoO4)3:Yb/Er samples with different substituted concentrations were detected by X-ray diffraction (XRD) … See more The tunable PL lifetime of Er3+ in Sc2(MoO4)3:Yb/Er phosphors, which spans two orders of magnitude with the temperature from 298 to 623 K, offers a great opportunity for their application in lifetime-based … See more Figure 3a shows the UC emission spectra of the Sc2(MoO4)3:20%Yb/1%Er phosphors upon 980-nm laser excitation at different … See more To shed more light on the mechanism responsible for the thermal-enhanced UC and DS emissions of Sc2(MoO4)3:20%Yb/1%Er with two-dimensional NTE, the temperature-dependent … See more
WebJan 23, 2024 · Through formation of the NaYF 4 outermost shell, downshifting Tb 3+ luminescence was also enhanced, causing the NaGdF 4 :Yb (49%),Tm (1%)/NaGdF 4 … WebSep 30, 2015 · This work investigates the promising multi-modal luminescence (upconversion (UC), downshifting (DS) and quantum cutting (QC)) properties of RE 3+ (Tm 3+, Yb 3+) and Bi 3+ activated GdNbO 4 phosphors synthesized using the well-known solid state reaction method.
WebExploring new host materials to realize efficient downshifting (DS) and upconversion (UC) luminescence is a goal of general concern. Ln 3+ -doped oxybromides, which bring together the advantages of high chemical/thermal stability of oxides and low phonon energy of bromides, have been rarely reported so far.
Webdown· shift ˈdau̇n-ˌshift. downshifted; downshifting; downshifts. Synonyms of downshift. intransitive verb. 1. : to shift an automotive vehicle into a lower gear. 2. : to move or shift …
WebFeb 18, 2024 · Alternatively, the Bi 3+ ion has also been selected as sensitizer in the downshifting (DS) process in which it transfers its energy to the Dy 3+ and Tb 3+ ions in the YPO 4 and Y 2 O 3 phosphor... cost of a pit bullWebWe describe a metal nanodisk–insulator–metal (MIM) structure that enhances lanthanide-based upconversion (UC) and downshifting (DS) simultaneously. The structure was … cost of apixaban australiaWebDec 24, 2024 · Circularly polarized luminescence (CPL)-active materials have attracted exclusive attention because of their wide potential applications in low-power-consumption displays, encrypted information storage, chiroptical sensors, and so on. breaking 2 electric