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

Summary, in English

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.

• Författare: W Chen; A G Joly; Jan-Olle Malm; Jan-Olov Bovin
• Avdelning/ar: Centrum för analys och syntes
• Publiceringsår: 2004
• Språk: Engelska
• Sidor: 667-672
• Publikation/Tidskrift/Serie: Applied Physics Reviews
• Volym: 95
• Issue: 2
• Länkar: http://dx.doi.org/10.1063/1.1633345
• Dokumenttyp: Artikel i tidskrift
• Förlag: American Institute of Physics (AIP)
• Ämne: Chemical Sciences
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 1931-9401