Visible Upconversion Luminescence from Y2O3:Eu3+,Yb3+

Wang, Huaishan; Duan, Chang‐Kui; Tanner, Peter A.

doi:10.1021/jp8046505

Cited by 86 publications

(65 citation statements)

References 31 publications

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“…The same mechanism was cited to account for the Tb 3+ emission intensity increase in Tb 3+ , Yb 3+ co-doped tellurite glass under anti-Stokes excitation [144]. However, it was reported [143] [145]. The schematic energy level diagram is shown in Fig.…”

Section: Photon Avalanchementioning

confidence: 69%

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Lanthanide Luminescence in Solids

Tanner

2010

Springer Series on Fluorescence

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A tutorial introduction to the spectra of lanthanide ions is given. The chapter begins with a brief comparison of luminescence of lanthanide ions (Ln 3+ ) in the solid, liquid, and gas phases. Then a description of the importance of nonradiative versus radiative processes is made. The various types of transition of lanthanide ions encountered are then introduced: 4f N -4f N ; 4f N -4f NÀ1 5d; charge transfer; host band-to-band; and defect site or impurity transitions. Reference is briefly made to the spectra of dipositive ions. The luminescence of lanthanide ions in non-lanthanide hosts is examined, and the importance of locating the relative positions of Ln 3+ energy levels relative to the host band gap is stressed. Some of the various upconversion phenomena, including second harmonic generation, twophoton absorption, ground state/excited state absorption, energy transfer upconversion, and photon avalanche, are then described with reference to Ln 3+ and Ln 3+ -TM n+ (transition metal) systems. The experimental distinctions of which particular process is operative in a given system are explained by considering the power, concentration, and lifetime dependences, and the upconversion excitation spectrum. Some applications of lanthanide luminescence are briefly reviewed and a mention of the luminescence in nanomaterials is also included.

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Section: Photon Avalanchementioning

confidence: 69%

“…13c) and this was accounted for by two simulations. One of these simulations was based upon the thermalization of the 7 F 1 levels of Eu 3+ , whereas the alternative simulation focused on the dependence of upconversion rate upon temperature [145].…”

Section: Photon Avalanchementioning

confidence: 99%

Lanthanide Luminescence in Solids

Tanner

2010

Springer Series on Fluorescence

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“…F 4 transitions, respectively [17][18][19]. The weak and narrow yellow line with a maximum centered around 578 nm is forbidden by the both electric-and magnetic dipole selection rules of angular momentum which is of special interest.…”

Section: Resultsmentioning

confidence: 99%

Near-Infrared-to-Blue Up-conversion Luminescence in Transparent Eu3+/Yb3+ Doped Oxyfluoride Phosphors

Grigory¹,

Kuznetsov²,

Šarakovskis³

et al. 2017

JMSE-B

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“…[27][28][29] Oxide materials are usually chemically, mechanically, and thermally stable, and therefore can be promising hosts for light UC applications. [27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45] For these purposes, Er doped many oxide hosts UC materials have been designed and prepared, such as ZnO, 27 43 and NaNbO 3 44 have been studied. However, these types of pervoskite oxides have chemical and physical stability but low emission efficiency due to their low solubility of trivalent rare earth ions.…”

Section: Introductionmentioning

confidence: 99%

Upconversion luminescence, ferroelectrics and piezoelectrics of Er Doped SrBi4Ti4O15

Peng

Zou

et al. 2012

AIP Advances

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Er3+ doped SrBi4Ti4O15 (SBT) bismuth layered-structure ferroelectric ceramics were synthesized by the traditional solid-state method, and their upconversion photoluminescent (UC) properties were investigated as a function of Er3+ concentration and incident pump power. Green (555 nm) and red (670 nm) emission bands were obtained under 980 nm excitation at room temperature, which corresponded to the radiative transitions from 4S3/2, and 4F9/2 to 4I15/2, respectively. The emission color of the samples could be changed with moderating the doping concentrations. The dependence of UC intensity on pumping power indicated a two-photon emission process. Studies on dielectric properties indicated that the introduction of Er increased the ferroelectric-paraelectric phase transition temperature (Tc) of SBT, thus making this ceramic suitable for piezoelectric sensor applications at higher temperatures. Piezoelectric measurement showed that the doped SBT had a relative higher piezoelectric constant d33 compared with the non-doped ceramics. The thermal annealing behaviors of the doped sample revealed a stable piezoelectric property. The doped SBT showed bright UC emission while simultaneously having increased Tc and d33. As a multifunctional material, Er doped SBT ferroelectric oxide showed great potential in application of sensor, future optical-electro integration and coupling devices

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Visible Upconversion Luminescence from Y₂O₃:Eu³⁺,Yb³⁺

Cited by 86 publications

References 31 publications

Lanthanide Luminescence in Solids

Lanthanide Luminescence in Solids

Near-Infrared-to-Blue Up-conversion Luminescence in Transparent Eu3+/Yb3+ Doped Oxyfluoride Phosphors

Upconversion luminescence, ferroelectrics and piezoelectrics of Er Doped SrBi4Ti4O15

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