Enhancement of Mechanoluminescence in CaAl2Si2O8 : Eu2 + by Partial Sr2 + Substitution for Ca2 +
作者： Lin Zhang , Chao-Nan Xu , Hiroshi Yamada , Nan Bu
DOI: 10.1149/1.3274879
关键词:
摘要: Mechanoluminescence (ML) in a CaAl 2 Si O 8 :Eu 2+ phosphor was greatly enhanced by partial Sr substitution for Ca ; ML intensity reached maximum at content of 40 mol %. Moreover, not observed 80 % or higher. To investigate the relationship between and crystal structure, Rietveld refinement structures performed, results which suggest that enhancement quenching phenomenon were associated with changes lattice symmetry. Furthermore, effects on structure photoluminescence characteristics also investigated, emission peak blueshifted from 428 to 403 nm due decrease field around Eu . Based electroluminescence measurements structural properties material, possible mechanism is proposed.
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