Green photoluminescence of SrGa2S4:Sn phosphors

The phosphor SrGa2S4:Sn exhibits a new green photoluminescence (PL) whose spectrum peaks at 534 nm. The phosphor also exhibits yellow and orange PL with very broad spectral bands when the excitation wavelength of the UV light is changed. These emissions are caused by the 5p–5s transition in the 5s2...

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Published in:Physica status solidi. A, Applications and materials science Applications and materials science, 2009-11, Vol.206 (11), p.2613-2616
Main Authors: Nagata, Mutsumi, Okamoto, Shinji, Tanaka, Katsu, Sakai, Toshikatsu, Tamaki, Akira
Format: Article
Language:English
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61.05.cp
71.20.Ps
78.55.Hx
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
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container_title Physica status solidi. A, Applications and materials science
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Okamoto, Shinji
Tanaka, Katsu
Sakai, Toshikatsu
Tamaki, Akira
description The phosphor SrGa2S4:Sn exhibits a new green photoluminescence (PL) whose spectrum peaks at 534 nm. The phosphor also exhibits yellow and orange PL with very broad spectral bands when the excitation wavelength of the UV light is changed. These emissions are caused by the 5p–5s transition in the 5s2 configuration of Sn2+ ions occupying Sr2+ sites. The origin of the green emission was investigated by analyzing the PL excitation spectra and the electronic states of Sn2+ substituting at three different Sr2+ sites. The electronic states were analyzed in a first‐principles calculation of the density of states.
doi_str_mv 10.1002/pssa.200925225
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subjects 61.05.cp
71.20.Ps
78.55.Hx
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
title Green photoluminescence of SrGa2S4:Sn phosphors
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