摘要
0引言自1966年提出用Gd2O3:Eu红粉代替以往红粉以来,Gd2O3:Eu被用于高清晰度电视、投影电视、平板显示、绿色照明工程等所需的高效优质发光材料,由于其光视效能较以往的红粉大大提高,因此得到了广泛的关注[1～3].商用荧光粉一般采用高温固相法合成,颗粒一般为微米级且形状不规则.
Spherical nanometer Gd2O3:Eu luminescent materials were prepared by homogeneous precipitation method, and the properties were studied also. TG, FTIR and XRD analysis showed that the precursor was carbonate, the cubic Gd2O3 was obtained after calcination. TEM photographs indicated that the samples were spherical and well dispersed with nanometer and submicrometer size of 200similar to300 nm which is the nanoparticles' aggregate. The mechanics of agglomerating growth is also discussed. ED photograph showed that the particle was crystalline. The PL analysis exhibited that CTB band of nanometer Gd2O3:Eu was of 17 nm red shift to bulk materials, and the emission peak was broadened due to the surface and interface effect of nanocrystals.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2004年第11期1367-1370,共4页
Chinese Journal of Inorganic Chemistry
