Some observations on the luminescence of β-Ga2O3

Blasse, G.; Bril, A.

doi:10.1016/0038-1098(69)90307-x

Cited by 272 publications

(362 citation statements)

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“…It is known that the critical distance between the sensitizer and activator should be shorter than 3-4Å if energy transfer takes the exchange interaction [17]. As suggested by Blasse [18], the average separation R Ce-Mn can be expressed by R Ce-Mn ¼2[3V/(4pxN)] 1/3 , where N is the number of Z ions in the unit cell, and V is the volume of the unit cell, x is the total concentration of Ce 3 þ and Mn 2 þ , i.e. x¼ 0.20þ9y for CLuP:0.20Ce 3 þ , yMn 2 þ .…”

Section: E( 4 D) 4 T 2 (4d)mentioning

confidence: 99%

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Photoluminescence properties of Ca9Lu(PO4)7:Ce3+, Mn2+ prepared by conventional solid-state reaction

Zhao

Yin

Wang

et al. 2012

Journal of Luminescence

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Section: E( 4 D) 4 T 2 (4d)mentioning

confidence: 99%

“…According to Dexter's energy transfer expressions of multipolar interaction and Reisfeld's approximation, the relation can be given [16,18,19]: I S0 /I S pC a/3 where a¼6, 8, and 10 are dipole-dipole, dipole-quadrupole, and quadrupole-quadrupole interactions, respectively. C is the doping concentration of the Mn 2 þ ions.…”

Section: E( 4 D) 4 T 2 (4d)mentioning

confidence: 99%

Photoluminescence properties of Ca9Lu(PO4)7:Ce3+, Mn2+ prepared by conventional solid-state reaction

Zhao

Yin

Wang

et al. 2012

Journal of Luminescence

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“…Ample evidence for transitions of this type have been put forward for Bi3~-V5ĩn YPO 4 [11,12] and for Pb 2~-W6(Mo6~)in PbWO 4 and PbMoO4 [13,14]. This explains at the same time why the transitions are at lower energies in PbSO4 than in CaSO4 and why the radiant decay time in Pb504 is much logner (less wave-function overlap) than in CaSO4.…”

Section: Pmentioning

confidence: 99%

Luminescence of rare earth vanadate associates in sulfates

Blasse¹,

Heuvel²

1975

Journal of Luminescence

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In some divalent metal sulfates (CaSO 4, PbSO4) the introduction of trivalent rare earth ions on the metal sites and pentavalent vanadium on the sulfur sites results in the formation of associates V0~-RE 3~. Energy transfer from the vanadate group to trivalent rare earth ions can be studied in these systems. It is shown that the transfer rate is temperature independent, but depends strongly on the choice of the host. In CaSO 4 the transfer rate in the associate is estimated to be~,108 s~',and in PbSO4~s 1. The low transfer rate in PbSO 4: RE,V is ascribed to the influence of the Pb 2~ions on the charge distribution in the vanadate group.

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“…The critical distance for this transfer is about 8 A (25). By repetition of this process the excitation energy can migrate through the crystal lattice which is the main reason why the host lattice YV04 yields very efficient luminescent materials upon doping.…”

Section: A Weak Interaction Between Equal Speciesmentioning

confidence: 99%

A comparison between “second-sphere effects” in the excited state properties of coordination compounds and nonmolecular solids

Blasse

Sabbatini

1987

Journal of Solid State Chemistry

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In this paper we compare second-sphere effects as known from the field of photochemistry and photophysics of coordination compounds with similar phenomena in nonmolecular solids. Literature data, as well as new results, especially on cryptates, are used. The similarity between these phenomena in both classes of compounds is much larger than thought at first glance and has been overlooked for the most part. The following effects are considered: the influence of complex encapsulation on the yield of photochemical processes and the thermal quenching temperature of luminescence; the interaction in ion pairs resulting in new energy levels and luminescence quenching; and the influence of electric charges on the position of absorption bands. Since quantitative calculations of these effects are not easy to perform, it is beneficial to discuss information available from different fields of research. 0 1987 Academic Press, Inc.

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Some observations on the luminescence of β-Ga2O3

Cited by 272 publications

References 0 publications

Photoluminescence properties of Ca9Lu(PO4)7:Ce3+, Mn2+ prepared by conventional solid-state reaction

Photoluminescence properties of Ca9Lu(PO4)7:Ce3+, Mn2+ prepared by conventional solid-state reaction

Luminescence of rare earth vanadate associates in sulfates

A comparison between “second-sphere effects” in the excited state properties of coordination compounds and nonmolecular solids

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