Upconversion luminescence of Eu3+ and Mn2+ in ZnS:Mn2+, Eu3+ codoped nanoparticles

被引：57

作者：

Chen, W

Joly, AG

Malm, JO

Bovin, JO

机构：

[1] Nomad Inc, Stillwater, OK 74074 USA

[2] Pacific NW Natl Lab, Richland, WA 99352 USA

[3] Lund Univ, Ctr Chem & Chem Engn, SE-22100 Lund, Sweden

来源：

JOURNAL OF APPLIED PHYSICS | 2004年 / 95卷 / 02期

关键词：

D O I：

10.1063/1.1633345

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Strong upconversion luminescence of both Mn2+ and Eu3+ is observed in ZnS:Mn2+, Eu3+ codoped nanoparticles. Laser power dependencies and spectroscopic data show that the upconversion emission is due to two-photon excitation of each specific dopant ion. The relative differences in two-photon excitation cross section result in different relative intensities for the Eu3+ and Mn2+ upconversion at different wavelengths. Spectroscopic data and luminescence lifetime data indicate no evidence of energy transfer between the Mn2+ and Eu3+ ions. (C) 2004 American Institute of Physics.

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页码：667 / 672

页数：6

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