Quenching, Stimulation, and Exhaustion Studies on Some Infrared Stimulable Phosphors

Keller, Seymour P.; Pettit, G. D.

doi:10.1103/physrev.111.1533

Cited by 29 publications

(11 citation statements)

References 3 publications

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“…with λ 1 = 255 nm, and λ 2 = 310 nm [2]. Photoinduced reversible electron transfer had earlier been reported by Keller et al [3,4] in so-called infrared (IR) stimulable phosphors: SrS:Ce,Sm,…”

mentioning

confidence: 84%

Elucidation of the electron transfer mechanism in Eu2+ and Sm3+ codoped
Joos
¹
,
Heggen
²
,
Amidani
³

et al. 2021
Phys. Rev. B
22
1
22
0
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Many-electron multiconfigurational ab initio calculations are combined with x-ray spectroscopy to scrutinize a popular model for electron transfer in lanthanide-doped crystals which hypothesizes that the electrons are conveyed by the conduction band of the host. Contrary to this accepted picture, our combined theoreticalexperimental effort shows that the reversible electron phototransfer from Eu 2+ to Sm 3+ in CaF 2 is direct, from metal to metal. It is theoretically predicted and experimentally verified that visible light induces the reverse electron transfer.

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mentioning

confidence: 84%

Elucidation of the electron transfer mechanism in Eu2+ and Sm3+ codoped
Joos
¹
,
Heggen
²
,
Amidani
³

et al. 2021
Phys. Rev. B
22
1
22
0
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show abstract

“…For example, the alkaline earth sulfides doped with the combination Eu 2+ and Sm 3+ or the combination Ce 3+ and Eu 3+ were intensively studied for their charge storage properties under optical or ionizing radiation excitation, and the materials were considered for optical data storage applications [2][3][4][5][6][7][8][9][10][11]. However, quantitative data on the location of electron trapping and electron donating levels were not published.…”

Section: Introductionmentioning

confidence: 99%

Lanthanide level location and charge carrier trapping in LiLnSiO₄:Ce³⁺,Sm³⁺, Ln = Y or Lu

Sidorenko

Dorenbos

Bos

et al. 2006

J. Phys.: Condens. Matter

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By doping an inorganic compound with two specific types of trivalent rareearth impurities the controlled creation of electron-and hole-trapping centres is possible. This is demonstrated with experimental data on LiLnSiO 4 :Ce 3+ , Sm 3+ , Ln = Y or Lu. After exposure to ionizing radiation electrons are captured by Sm 3+ and holes are captured by Ce 3+ . The electron trapping depth is given by the energy difference between the Sm 2+ ground state and the bottom of the conduction band. This energy is estimated from the energy of charge transfer from the valence band to Eu 3+ employing recently developed models. The trapping energy is also determined from thermoluminescence studies. Both values are in good agreement.

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“…4. Decomposition du spectre de luminescence de Ca,,,Sr,,,S: Ce excite a 2,7eV a la temperature T = 300 K ( 3 ) en spectre correspondant excite a 2,9 eV (I) et spectre decale de -0,l eV et d'intensitk integrale relative 0,27 par rapport ce dernier (2) en excitant a 2,9 eV et d'un second spectre de forme identique, decale de 0,l eV vers les grandes longueurs d'onde et dont I'intensitk integrale relative par rapport au dernier est 28%. la limite de I'absorption fondamentale.…”

Section: Discussionunclassified

“…Decomposition du spectre de luminescence de SrS : Ce mesure lors de I'excitation a la limite de I'absorption fondamentale et a la temperature T = 300 K (3) en spectre correspondant mesure lors de I'excitation dam la bande de l'activateur (1) et spectre de forme identique a celui-ci mais decale dans le sens des grandes longueurs d'onde et attribut: au centre de cerium radiativement induit(2). Paramitres de decomposition: decalage S = -0,12 eV, intensite integrale relative du second spectre par rapport au premier IJI, = 0,50, ecart quadratique moyen entre les spectres experimental et model6 0devrait itre proportionnel au dkplacement spacial de l'ion Ce3+ de sa position d'tquilibre.…”

unclassified

Modification radiativement induite du spectre de luminescence de l'ion Ce³⁺ dans les solutions solides Ca_1–xSr_xS

Belsky¹,

Krachni²,

Mikhailin³

1993

Physica Status Solidi (b)

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+ dans les solutions solides Ca -.Sr,S Par A. N. BELSKY, 0. KRACHNI et V. V. MIKHAILINLes differences observees entre les spectres d'eniission de I'ion Ce3 + dans les solutions solides Ca, -,Sr,S, mesures sous excitation dans la bande de l'activateur et dans le domaine de I'absorption fondamentale ont etC expliquees. On a montre que le spectre de luminescence de ces phosphores lors de I'excitation interbande est la somme de deux spectres: le premier obtenu lors de I'excitation de l'activateur et le second de forme identique au precedent niais deplace par rapport a lui vers les grandes longueurs d'onde. On a attribue ce dernier spectre d la modification radiativement induite de la symetrie d'une certaine proportion de centres Ce3+ lors de l'excitation interbande. On a egalement considere cet effet dans le cas de I'excitation par rayons X. Le modele propose a permis d'obtenir de nouveaux renseignements sur la structure spaciale locale des solutions solides Cal -,Sr,S.Differences in the emission spectra or the Ce3' ion in Ca, _,Sr,S solid solutions, measured under excitation in the activator band and in the fundamental absorption region are explained. It is shown that the luminescence spectrum of these phosphors under interband excitation consists of two spectra: the first one is the same as for the activator excitation and the second one with identical course but shifted towards longer wavelengths. The latter spectrum is attributed to the portion of Ce3+ centres in lattice sites with radiatively induced modification of symmetry. This effect was also considered for X-ray excitation. The proposed model allows to obtain new information on the spatial structure of Ca, _,Sr,S solid solutions.

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Quenching, Stimulation, and Exhaustion Studies on Some Infrared Stimulable Phosphors

Cited by 29 publications

References 3 publications

Elucidation of the electron transfer mechanism in Eu2+ and Sm3+ codoped
Joos
¹
,
Heggen
²
,
Amidani
³

et al. 2021
Phys. Rev. B
22
1
22
0
View full text Add to dashboard Cite

Elucidation of the electron transfer mechanism in Eu2+ and Sm3+ codoped
Joos
¹
,
Heggen
²
,
Amidani
³

et al. 2021
Phys. Rev. B
22
1
22
0
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Lanthanide level location and charge carrier trapping in LiLnSiO₄:Ce³⁺,Sm³⁺, Ln = Y or Lu

Modification radiativement induite du spectre de luminescence de l'ion Ce³⁺ dans les solutions solides Ca_1–xSr_xS

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Quenching, Stimulation, and Exhaustion Studies on Some Infrared Stimulable Phosphors

Cited by 29 publications

References 3 publications

Elucidation of the electron transfer mechanism in Eu2+ and Sm3+ codoped Joos1, Heggen2, Amidani3 et al. 2021Phys. Rev. B221220View full textAdd to dashboardCite

Elucidation of the electron transfer mechanism in Eu2+ and Sm3+ codoped Joos1, Heggen2, Amidani3 et al. 2021Phys. Rev. B221220View full textAdd to dashboardCite

Lanthanide level location and charge carrier trapping in LiLnSiO4:Ce3+,Sm3+, Ln = Y or Lu

Modification radiativement induite du spectre de luminescence de l'ion Ce3+ dans les solutions solides Ca1–xSrxS

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Elucidation of the electron transfer mechanism in Eu2+ and Sm3+ codoped
Joos
¹
,
Heggen
²
,
Amidani
³

et al. 2021
Phys. Rev. B
22
1
22
0
View full text Add to dashboard Cite

Elucidation of the electron transfer mechanism in Eu2+ and Sm3+ codoped
Joos
¹
,
Heggen
²
,
Amidani
³

et al. 2021
Phys. Rev. B
22
1
22
0
View full text Add to dashboard Cite

Lanthanide level location and charge carrier trapping in LiLnSiO₄:Ce³⁺,Sm³⁺, Ln = Y or Lu

Modification radiativement induite du spectre de luminescence de l'ion Ce³⁺ dans les solutions solides Ca_1–xSr_xS