Charge transfer luminescence of yb3+
WebDeveloping high-brightness luminescence materials is always a significant work, especially for bismuth-based phosphors, due to their incompletely spin-allowed intra-ionic electron transition of 1S0–3P1. In this work, high-brightness light emitting of Bi3+ ion was achieved in Ba2GdGaO5, and its internal quantum efficiency (IQE) reaches up to 96%. WebFor Er 3+ codoped with an Yb 3+ concentration of 6 × 10 20 ions/cm 3, an energy-transfer coefficient of 1.1 × 10 -16 cm 3 /s and an energy-transfer efficiency higher than 95% were determined from our measurements under weak excitation.
Charge transfer luminescence of yb3+
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WebOct 18, 2024 · Tb3+–Yb3+ co-doped SiNx down-conversion layers compatible with silicon Photovoltaic Technology were prepared by reactive magnetron co-sputtering. Efficient sensitization of Tb3+ ions through a SiNx host matrix and cooperative energy transfer between Tb3+ and Yb3+ ions were evidenced as driving mechanisms of the down … WebJul 8, 2024 · The reflectance spectra show a broadband below 400 nm ascribed to the ligand-to-metal charge transfer (LMCT) O 2− → Ti 4+ fundamental state. The Yb 3+ ( λem = 980 nm) excitation spectra show a broadband being also compatible with the LMCT O 2− → Ti 4+ state, indicating the energy transfer from the host to the Yb 3+.
WebA series of high quality Yb3+-doped gadolinium scandium gallium garnet (Yb:GSGG) single crystals with different Yb3+ ion concentration (7.5, 10, 15 and 30 at.%) has been grown by means of optical floating zone (OFZ). Crystal structure was analyzed with X-ray powder diffraction (XRPD), showing that the Yb:GSGG crystal possesses a cubic structure with … WebIf the address matches an existing account you will receive an email with instructions to reset your password
WebThe size of powder calcined at 1100°C is about 70-150 nm with higher purity, regular shape and even particle size distribution, which is favorable for good sinterability of Yb:YAG ceramics.Key words: Yb; YAG laser … WebApr 7, 2024 · Download Citation On Apr 7, 2024, Qiang Wang published Journal of Luminescence -Sc2W3O12 Yb3+, Er3+ Find, read and cite all the research you need on ResearchGate
WebUnder Yb3+ ion infrared pumping, self- trapping and up-conversion non-radiative energy transfer to rare earth impurities (Er3+, Tm3+) have been observed in visible region and interpreted by a limited diffusion process …
WebThe downconversion phenomenon has been observed under the direct excitation of Ce 3+ ions. On analyzing the dependence of energy transfer rate on Yb 3+ ion concentration, we reveal that the energy transfer (ET) from Ce 3+ ions to Yb 3+ ions in CaSc 2 O 4 occurs mainly by the single-step ET process. mongoengine authentication failedWebJan 1, 2012 · Charge transfer luminescence in Yb 3+-containing compounds Article Sep 2004 OPT MATER M. Nikl Akira Yoshikawa T. Fukuda View Show abstract Characterization of Yb:YAG and Yb:YAP scintillators... mongoengine commandcursorWebNov 28, 2011 · We report a new discovery of Yb 3+-doped ultrafast scintillators based on the Yb 3+ charge transfer luminescence. Transparent ceramic Yb 3+-doped Y 2 O 3, … mongoengine authentication_sourceWebNov 1, 2000 · Whereas, for the Yb 3+ ion case, the charge transfer luminescence can be expected at lower temperatures (T < 300 K) [29] as far as the only excited state 2 F5/2 is … mongo end of lifeWebThe optical photoluminescent (PL) emission of Yb3+ ions in the near infrared (NIR) spectral region at about 950–1100 nm has many potential applications, from photovoltaics to lasers and visual devices. However, due to their simple energy-level structure, Yb3+ ions cannot directly absorb UV or visible light, putting serious limits on their use as light … mongoengine choicesWeb暨南大学,数字图书馆. 开馆时间：周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆 mongoengine append to listfieldWebTunable yellow-green up-conversion emission and luminescence lifetimes in Yb3+-Er3+-Ho3+ multi-doped β-NaLuF4 crystals mongoengine drop collection