Temperature and impurity concentration effects on upconversion luminescence in LaInO3 doped with Er3+
A. Sarakovskis, J. Grube, K. Strals, G. Krieke, M. Springis, N. Mironova-Ulmane, and V. Skvortsova
Institute of Solid State Physics, University of Latvia, LV-1063, Riga, Latvia
E.K. Yukhno and L.A. Bashkirov
Belarusian State Technological University, 220006, Minsk, Belarus
Received March 11, 2016
In this paper a novel method for synthesis of LaInO3 : Er3+ is reported and upconversion luminescence properties of the synthesized material at different temperatures (9–300 K) are studied. The samples were prepared by co-precipitation and subsequent heat treatment of lanthanum, indium and erbium hydroxides. It is shown that the excitation at 980 nm leads to a strong green upconversion luminescence in the material. At the concentrations above 0.1 mol % of Er3+ the energy transfer upconversion mechanism of the luminescence becomes evident.Further increase of Er3+ content in the material leads to higher red-to-green upconversion luminescence intensityratio. The mechanisms responsible for the observed variation are discussed.
PACS: 78.47.D– Time resolved spectroscopy; PACS: 78.55.–m Photoluminescence, properties and materials; PACS: 87.15.mq Luminescence.