Abstract
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.
Original language | English |
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Pages (from-to) | 667-672 |
Journal | Applied Physics Reviews |
Volume | 95 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2004 |
Bibliographical note
The information about affiliations in this record was updated in December 2015.The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)
Subject classification (UKÄ)
- Chemical Sciences