Synthesis of the blue long afterglow phosphor Sr_2MgSi_2O_7:Eu,Dy by sol-gel method and its luminescent properties;

Research on spectral propertices of red long afterglow phosphor Y_2O_2S∶Eu,Mg,Ti;

Preparation of non-grinding CaAl_2O_4:Eu~(2+),Dy~(3+) blue long afterglow material by microwave combustion method;

In this paper, the types and development of long persistence luminescent materials including sulphide long persistence materials, alkali-earth aluminate long persistence materials and silicate long persistence materials etc.

The SrAl_2O_4∶Eu~(2+),Dy~(3+) luminous materials with high brightness and long persistence have been synthesized by solid sintering technology using carbon as reductant.

SrAl O : Eu2+, Dy3+ long persistence phosphor has been synthesized by combustion method at 2 4 low temperature.

Through studies of the composition and morphology of different raw materials alumina,the influence on the luminescence properties of rare earth aluminate long afterglow was analyzed.

A new kind of orange-red long afterglow Eu and Ti co-doped Y2O3S phosphor was synthesized via a traditional solid state reaction method under reducing atmosphere of CO.

The excitation and emission spectra,afterglow spectra and thermoluminescence spectra were examined.

Synthesis and luminescence mechanism of superlong afterglow rare earth luminescent materials (SrAl2O4:Eu2+,Dy3+) were described.

Rare earth superlong afterglow luminescnet material SrAl2O4∶Eu2+, Dy3+ was synthesized by hightemperature solid state reaction with SrCO3, Al2O3, Eu2O3 and Dy2O3.

The results show that under the condition of taking N_2 as sintering atmosphere,taking 1300℃ as sintering temperature,keeping constant temperature for 3h and naturally cooling in the furnace,high quality long-lasting phosphorescence glasses can be produced.

The influence of B_2O_3 content on the crystalline phase content and luminescence properties of strontium aluminoborate long-lasting phosphorescence glass-ceramic was investigated.