Nitrogen-induced enhancement of luminescence of blue-emitting Sr_2MgSi_2O_7:Eu~(2+) phosphors for light-emitting diodes
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Abstract:
The near-ultraviolet (n-UV) excited blue-emitting Sr2MgSi2O7:Eu2+ phosphors are used for fluorescence lamp and tricolor white LEDs. The effect of nitrogen-doped on the structure of the host and the enhancement of photoluminescence is experimentally investigated. The results show that as the amount of nitrogen-doped varies from 0 to 0.6 (at.), the luminous intensity is found to be increased to 169%, and the partial replacement of O by N results in a change of the crystal field by modifying the symmetry of th...
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Clc Number:
TN312.8
