Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25191
Title: Persistent luminescence upconversion for Er2O3 under 975 nm excitation in vacuum
Authors: Wang, J
Hao, JH 
Tanner, PA
Keywords: Er3+
Infrared emission
Persistent luminescence
Thermo-optical processes
Upconversion
Issue Date: 2015
Publisher: Elsevier
Source: Journal of luminescence, 2015, v. 164, p. 116-122 How to cite?
Journal: Journal of Luminescence 
Abstract: The 975 nm excited emission of Er<inf>2</inf>O<inf>3</inf> in the infrared (IR) and visible spectral regions at powers below the threshold for broadband white light generation has been investigated. In this regime the log(emission intensity) vs log(power) plots for emission at 660 nm and 154 nm exhibit slopes for the sample in air (vacuum) of ?1 (?5) and ?1 (?2), respectively and the excitation mechanisms are discussed. The build-up of the emission is on the timescale of seconds and the excitation and decay transients have been recorded and analyzed for various excitation powers. The decay of the IR and visible emission each follow biexponential processes on a second timescale. The duration and kinetics of the emission decay are characteristic of persistent luminescence.
URI: http://hdl.handle.net/10397/25191
ISSN: 0022-2313
DOI: 10.1016/j.jlumin.2015.03.018
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