Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9578273 | Chemical Physics Letters | 2005 | 5 Pages |
Abstract
Excitation around 10 200 and 10 600 cmâ1 into the absorption peaks of Yb3+ leads to visible Ni2+1T2g â 3A2g upconversion luminescence in the doubly doped CsCdBr3: Ni2+, Yb3+ at cryogenic temperatures. The excitation spectrum indicates that an Yb3+ absorption step is involved in the upconversion process leading to visible Ni2+ luminescence. This process via Yb3+ excitation is more efficient than the upconversion mechanism involving only Ni2+, which is observed in the title compound for excitation energies above 11 200 cmâ1. Upconversion lifetimes point towards an energy transfer upconversion mechanism for the Ni2+/Yb3+ system in CsCdBr3.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Sara GarcÃa-Revilla, Pascal Gerner, Oliver S. Wenger, Hans U. Güdel, Rafael Valiente,