Cation size dependence of phosphorescence lifetime of Eu2+ doped alkali halide crystals

R. Pérez-Salas; T. M. Piters; R. Aceves; R. Rodríguez-Mijangos; H. Riveros; J. M. Hernández A.; H. Murrieta S.

doi:10.1016/j.optmat.2012.10.016

Cation size dependence of phosphorescence lifetime of Eu²⁺ doped alkali halide crystals

R. Pérez-Salas^*, T. M. Piters, R. Aceves, R. Rodríguez-Mijangos, H. Riveros, J. M. Hernández A., H. Murrieta S.

^*Corresponding author for this work

Departamento de Investigación en Física

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Phosphorescence lifetimes of europium doped alkali halide crystals have been measured and compared with each other. The lifetime values resulted to be more influenced by the cation size following an increasing order from Li to Rb. The effect of covalency decrease from Li to Rb and the corresponding mixing of 4f⁷ and 4f⁶5d states of europium ions suggests an influence of the low lying ⁶P_7/2 level of the 4f ⁷ electronic configuration on the relaxation from the 4f ⁶5d excited state to the ⁸S_7/2 ground state.

Original language	English
Pages (from-to)	617-619
Number of pages	3
Journal	Optical Materials
Volume	35
Issue number	3
DOIs	https://doi.org/10.1016/j.optmat.2012.10.016
State	Published - Jan 2013

Bibliographical note

Funding Information:
This work has been partially supported by CONACyT project 123952 and Universidad de Sonora under PIFI-2009 and project P/MAA-2008-18.

Keywords

Alkali halides
Europium
Lifetime
Luminescence

Access to Document

10.1016/j.optmat.2012.10.016

Cite this

@article{19821c29423e40c3b1bd1dd7630e397d,

title = "Cation size dependence of phosphorescence lifetime of Eu2+ doped alkali halide crystals",

abstract = "Phosphorescence lifetimes of europium doped alkali halide crystals have been measured and compared with each other. The lifetime values resulted to be more influenced by the cation size following an increasing order from Li to Rb. The effect of covalency decrease from Li to Rb and the corresponding mixing of 4f7 and 4f65d states of europium ions suggests an influence of the low lying 6P7/2 level of the 4f 7 electronic configuration on the relaxation from the 4f 65d excited state to the 8S7/2 ground state.",

keywords = "Alkali halides, Europium, Lifetime, Luminescence",

author = "R. P{\'e}rez-Salas and Piters, {T. M.} and R. Aceves and R. Rodr{\'i}guez-Mijangos and H. Riveros and {Hern{\'a}ndez A.}, {J. M.} and {Murrieta S.}, H.",

note = "Funding Information: This work has been partially supported by CONACyT project 123952 and Universidad de Sonora under PIFI-2009 and project P/MAA-2008-18.",

year = "2013",

month = jan,

doi = "10.1016/j.optmat.2012.10.016",

language = "Ingl{\'e}s",

volume = "35",

pages = "617--619",

journal = "Optical Materials",

issn = "0925-3467",

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T1 - Cation size dependence of phosphorescence lifetime of Eu2+ doped alkali halide crystals

AU - Pérez-Salas, R.

AU - Piters, T. M.

AU - Aceves, R.

AU - Rodríguez-Mijangos, R.

AU - Riveros, H.

AU - Hernández A., J. M.

AU - Murrieta S., H.

N1 - Funding Information: This work has been partially supported by CONACyT project 123952 and Universidad de Sonora under PIFI-2009 and project P/MAA-2008-18.

PY - 2013/1

Y1 - 2013/1

N2 - Phosphorescence lifetimes of europium doped alkali halide crystals have been measured and compared with each other. The lifetime values resulted to be more influenced by the cation size following an increasing order from Li to Rb. The effect of covalency decrease from Li to Rb and the corresponding mixing of 4f7 and 4f65d states of europium ions suggests an influence of the low lying 6P7/2 level of the 4f 7 electronic configuration on the relaxation from the 4f 65d excited state to the 8S7/2 ground state.

AB - Phosphorescence lifetimes of europium doped alkali halide crystals have been measured and compared with each other. The lifetime values resulted to be more influenced by the cation size following an increasing order from Li to Rb. The effect of covalency decrease from Li to Rb and the corresponding mixing of 4f7 and 4f65d states of europium ions suggests an influence of the low lying 6P7/2 level of the 4f 7 electronic configuration on the relaxation from the 4f 65d excited state to the 8S7/2 ground state.

KW - Alkali halides

KW - Europium

KW - Lifetime

KW - Luminescence

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U2 - 10.1016/j.optmat.2012.10.016

DO - 10.1016/j.optmat.2012.10.016

M3 - Artículo

SN - 0925-3467

VL - 35

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JO - Optical Materials

JF - Optical Materials

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