Engineering near-infrared emitting scintillators with efficient Eu2+ → Sm2+ energy transfer

Journal article (2020)

Authors

W.W. Wolszczak RST/Luminescence Materials - AS
Karl W. Krämer University of Bern
P. Dorenbos RST/Luminescence Materials - AS
Research Group
RST/Luminescence Materials (AS) (TU Delft)
Copyright: © 2020 W.W. Wolszczak, K. W. Krämer, P. Dorenbos
DOI: https://doi.org/10.1016/j.jlumin.2020.117101
More Info
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Published Date

2020

Language

English

Faculty

Applied Sciences

Department

RST/Radiation, Science and Technology

Research Group

RST/Luminescence Materials

Abstract

Recently, we proposed a concept for a new class of near infrared (NIR) scintillators by employing efficient Eu2+ → Sm2+ energy transfer. In this article we investigate the optical spectroscopy of Sm2+ in BaBrI, CsSrI3, and CsBa2I5 halide hosts. A criterion was derived for fast Sm2+ 5d → 4f emission and a list of new potential NIR scintillators is proposed.