Abstract
Upconversion luminescence in ZnS:Mn 2+, Eu 3+ codoped nanoparticles was investigated. Findings suggest that the upconversion emission is due to two-photon excitation. Spectroscopy and luminescence lifetime analysis was used for investigation. Results show that upconversion luminescence exhibits a quadratic power dependence. X-ray powder diffraction and high-resolution transmission electron microscopy was used to study the crystalline structure of the nanoparticles.
Original language | English |
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Pages (from-to) | 667-672 |
Number of pages | 6 |
Journal | Journal of Applied Physics |
Volume | 95 |
Issue number | 2 |
DOIs | |
Publication status | Published - 15 Jan 2004 |
Externally published | Yes |