Efficient white light emission by upconversion in Yb3+-, Er3+- and Tm3+-doped Y2BaZnO5†
Mathieu Bérard,Marine Laroche,Arnaud Huignard,Ignacio Hernández,William P. Gillin,Richard J. Curry,Anthony K. Cheetham
Chemical Communications Pub Date : 05/04/2011 00:00:00 , DOI:10.1039/C1CC11427A
Abstract
We report efficient white upconversion luminescence in Yb3+-, Er3+- and Tm3+-doped monophasic and biphasic Y2BaZnO5 phosphors under 977 nm near-infrared excitation and at low excitation power densities (down to ∼25 mW mm−2).
