TY - JOUR
T1 - High thermal stability of red emission in Mn-doped benitoite-type strontium silicogermanate
AU - Suzuki, Rie
AU - Takahashi, Yoshihiro
AU - Iwasaki, Kenichiro
AU - Terakado, Nobuaki
AU - Fujiwara, Takumi
N1 - Publisher Copyright:
© 2015 The Japan Society of Applied Physics.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - We assessed the photoluminescence performance characteristics of Mn4+-doped tetragermanate and silicogermanate phases with a benitoitetype structure. We observed a visible red emission based on the 2E→4A2 transition in the doped benitoite-type tetragermanate. The partial substitution of Si for Ge, resulting in SrGe3.495Mn0.005Si0.5O9, improved the internal quantum efficiency and thermal stability of the red emission. A possible explanation of the substitution effect was reasonably presented on the basis of the connectivity of luminescent polyhedral units and the decrease in the Franck-Condon off-set value in the benitoite structure.
AB - We assessed the photoluminescence performance characteristics of Mn4+-doped tetragermanate and silicogermanate phases with a benitoitetype structure. We observed a visible red emission based on the 2E→4A2 transition in the doped benitoite-type tetragermanate. The partial substitution of Si for Ge, resulting in SrGe3.495Mn0.005Si0.5O9, improved the internal quantum efficiency and thermal stability of the red emission. A possible explanation of the substitution effect was reasonably presented on the basis of the connectivity of luminescent polyhedral units and the decrease in the Franck-Condon off-set value in the benitoite structure.
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U2 - 10.7567/APEX.8.072603
DO - 10.7567/APEX.8.072603
M3 - Article
AN - SCOPUS:84936791368
SN - 1882-0778
VL - 8
JO - Applied Physics Express
JF - Applied Physics Express
IS - 7
M1 - 072603
ER -