Photoluminescence of Eu(DBM)3Phen-embedded Silica Nanospheres Synthesized in Microemulsion

摘要

Eu(DBM)3Phen-embedded silica nanospheres were synthesized through a simple water-in-oil (W/O)microemulsion method.TEM observation indicates that the nanospheres are approx= 40 nm in diameter and with a uniform core/shell structure.Compared to Eu(DBM)3Phen complex,the nano-hybrid-spheres shows similar emissions of Eu3+ions under 355-nm excitation.By dynamic analysis at low temperature and laser selective excitation spectra,we found that there are two luminescent centers formed in the nanohybrids.