Energy transfer between UO2+2 and Eu3+ in sol-gel glasses: A spectroscopic investigation

Sheng Dai; Wu Xu; D. H. Metcalf; L. M. Toth

doi:10.1016/0009-2614(96)01088-3

Energy transfer between UO²⁺₂ and Eu³⁺ in sol-gel glasses: A spectroscopic investigation

Sheng Dai, Wu Xu, D. H. Metcalf, L. M. Toth

Chemical Sciences Division

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Abstract

Silica glasses doped with uranyl ions (UO²⁺₂) and europium ions (Eu³⁺) via sol-gel processes have been prepared so that the quenching of the UO²⁺ emission by Eu³⁺ in the sol-gel glass could be investigated. The quenching efficiency is found to be much less than that in aqueous solutions. This difference between the quenching efficiencies in the solid sol-gel glass and the liquid solutions can be attributed to that of the mobility of Eu³⁺ and UO²⁺₂ in two systems. A static energy-transfer process is proposed as the dominant mechanism for the quenching of UO²⁺₂ emission by Eu³⁺ in the sol-gel glass.

Original language	English
Pages (from-to)	315-320
Number of pages	6
Journal	Chemical Physics Letters
Volume	262
Issue number	3-4
DOIs	https://doi.org/10.1016/0009-2614(96)01088-3
State	Published - Nov 15 1996

Funding

This work was supported by the US Department of Energy, Office of Basic Energy Sciences, under contract DE-AC05-84OR21400 with Martin Marietta Energy Systems. We also thank a reviewer for valuable comments.

Funders	Funder number
Office of Basic Energy Sciences	DE-AC05-84OR21400
US Department of Energy

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title = "Energy transfer between UO2+2 and Eu3+ in sol-gel glasses: A spectroscopic investigation",

abstract = "Silica glasses doped with uranyl ions (UO2+2) and europium ions (Eu3+) via sol-gel processes have been prepared so that the quenching of the UO2+ emission by Eu3+ in the sol-gel glass could be investigated. The quenching efficiency is found to be much less than that in aqueous solutions. This difference between the quenching efficiencies in the solid sol-gel glass and the liquid solutions can be attributed to that of the mobility of Eu3+ and UO2+2 in two systems. A static energy-transfer process is proposed as the dominant mechanism for the quenching of UO2+2 emission by Eu3+ in the sol-gel glass.",

author = "Sheng Dai and Wu Xu and Metcalf, {D. H.} and Toth, {L. M.}",

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T1 - Energy transfer between UO2+2 and Eu3+ in sol-gel glasses

T2 - A spectroscopic investigation

AU - Dai, Sheng

AU - Xu, Wu

AU - Metcalf, D. H.

AU - Toth, L. M.

PY - 1996/11/15

Y1 - 1996/11/15

N2 - Silica glasses doped with uranyl ions (UO2+2) and europium ions (Eu3+) via sol-gel processes have been prepared so that the quenching of the UO2+ emission by Eu3+ in the sol-gel glass could be investigated. The quenching efficiency is found to be much less than that in aqueous solutions. This difference between the quenching efficiencies in the solid sol-gel glass and the liquid solutions can be attributed to that of the mobility of Eu3+ and UO2+2 in two systems. A static energy-transfer process is proposed as the dominant mechanism for the quenching of UO2+2 emission by Eu3+ in the sol-gel glass.

AB - Silica glasses doped with uranyl ions (UO2+2) and europium ions (Eu3+) via sol-gel processes have been prepared so that the quenching of the UO2+ emission by Eu3+ in the sol-gel glass could be investigated. The quenching efficiency is found to be much less than that in aqueous solutions. This difference between the quenching efficiencies in the solid sol-gel glass and the liquid solutions can be attributed to that of the mobility of Eu3+ and UO2+2 in two systems. A static energy-transfer process is proposed as the dominant mechanism for the quenching of UO2+2 emission by Eu3+ in the sol-gel glass.

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DO - 10.1016/0009-2614(96)01088-3

M3 - Article

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SN - 0009-2614

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EP - 320

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 3-4

ER -

Energy transfer between UO²⁺₂ and Eu³⁺ in sol-gel glasses: A spectroscopic investigation

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