Highly luminescent efficiency phosphors have been successfully produced by surface modification and microwave irradiation treatment. The SEM image and XRD analysis reveal that the surface morphology of the white-light phosphors can be notably modified by microwave irradiation and exhibit with better crystalline property. The VUVPL spectra show that the microwave irradiation treatment can effectively enhance the luminescent efficiency by a factor of 1.5 times for intensity compared to that without microwave treatment. A further improvement in all visible emission can be made by modifying surface composition through MgO coating on the phosphor powder. These results demonstrate that such a simple approach can provide for improving luminescent efficiency of phosphors for the optoelectronic devices.
|Number of pages||2|
|Journal||Proceedings of International Meeting on Information Display|
|State||Published - 1 Dec 2006|
|Event||5th International Meeting on Information Display - Seoul, Korea, Republic of|
Duration: 19 Jul 2005 → 23 Jul 2005