论文信息 - Influence of Eu, Dy co-doped strontium aluminate composition on mechanoluminescence intensity

Influence of Eu, Dy co-doped strontium aluminate composition on mechanoluminescence intensity

Abstract We have investigated the mechanoluminescence (ML) of Eu,Dy co-doped strontium aluminates. The SrAl 2 O 4 and Sr 3 Al 2 O 6 indicate high ML intensity, which is clearly visible to the naked eye in the air. SrAl 2 O 4 :Eu,Dy shows the highest ML intensity and has many filled traps, high quantum efficiency and moderate stiffness. On the other hand, Sr 3 Al 2 O 6 :Eu,Dy does not have many filled traps and high relative quantum efficiency, but Sr 3 Al 2 O 6 :Eu,Dy shows relatively high ML intensity. Sr 3 Al 2 O 6 :Eu,Dy indicates low stiffness. SrAl 4 O 7 :Eu,Dy has many filled traps and high relative quantum efficiency, but SrAl 4 O 7 :Eu,Dy shows very small ml intensity. SrAl 4 O 7 :Eu,Dy indicates high stiffness. This suggests that the stiffness is an important factor for the ML intensity of the Eu,Dy co-doped strontium aluminate system.

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