All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.


Synthesis and characterization of novel yellow-green emitting phosphors SrMgSi2O6:Tb3+

Author(s): Yong-Qing Zhai, Jin-Hang Li, Meng-Yao Yang, Lei Zhao

Yellow-green emitting phosphors SrMgSi2O6:Tb3+ were synthesized by gelcombustion method in weak reductive environment. The as-synthesized phosphors were investigated by X-ray powder diffraction analysis (XRD), scanning electron microscope (SEM) and Fluorescence spectrophotometer. The results indicate that SrMgSi2O6: Tb 3+ phosphors possess the similar tetragonal crystal structure as that of Sr2MgSi2O7. The emission spectrumis composed of a series of sharp peaks, located respectively at 473 nm, 491 nm, 547 nm, 585 nm. These emission peaks are ascribed respectively to 5D37F3, 5D47F6, 5D47F5, 5D47F5 transition of Tb3+ ions in SrMgSi2O6 host. The emission peak at 547 nm, 491 nmand 473 nmare all strong, the samples show yellow-green emitting under UV irradiation. Moreover, it is found that the concentration of doped Tb3+ and reductive temperature have great significant effect on the luminescent property of the phosphors.When the concentration ofTb3+ is 14mol%, reductive temperature is 1000 C, the luminescent intensity of SrMgSi2O6:Tb3+ is strongest.

Share this       

Table of Contents

Recommended Conferences

izmir escort izmir escort bursa escort antalya escort izmir escort porno porno izle türk porno eskişehir escort bartın escort burdur escort havalandırma izmir escort bursa escort porno indir izle escort izmir