| 简介 |
PROBLEM TO BE SOLVED : To provide a luminescent material that has a characteristic crystal structure and emits intense light.
SOLUTION : The stress-luminescent material has a structure where an alkali metal ion and an alkaline earth metal ion are inserted in a matrix structure constituted of molecules having a polyhedral structure and a part thereof is replaced by an ion of either one of rare earth metals, transition metals, group III metals and group IV metals. The stress-luminescent material has a triclinic, tetragonal or trigonal structure and emits ultraviolet rays.
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