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中文摘要：
采用高温固相法制备了Ce3＋、Tb3＋激活的SrZnP2O7材料,并研究了材料的发光性质。在290 nm紫外光激发下,SrZnP2O7∶Ce3＋材料的发射光谱为双峰宽谱,主峰位于329 nm。SrZnP2O7∶Tb3＋材料的发射光谱由420,443,491,545,587,625 nm六个峰组成,分别对应Tb3＋的5D3→7F5、5D3→7F4、5D4→7F6、5D4→7F5、5D4→7F4和5D4→7F3特征发射;监测545 nm最强发射峰,所得激发光谱覆盖200400 nm,主峰为380 nm。研究了Ce3＋、Tb3＋在SrZnP2O7材料中的能量传递过程,发现,Ce3＋对Tb3＋具有很强的敏化作用,提高了SrZnP2O7∶Tb3＋材料的发射强度,当Ce3＋摩尔分数为3%时,SrZnP2O7∶Tb3＋材料的发射强度提高了近2倍。引入电荷补偿剂可提高SrZnP2O7∶Tb3＋材料的发射强度,其中以掺入Li＋和Cl-时效果最明显。
英文摘要：
SrZnP2O7∶Tb3＋,SrZnP2O7∶Ce3＋ and SrZnP2O7∶Ce3＋,Tb3＋ phosphors were prepared by solid state reaction,and their luminescent characteristics were investigated.SrCO3（A.R.）,ZnO（A.R.）,NH4H2PO4（A.R.）,Li2CO3（A.R.）,Na2CO3（A.R.）,K2CO3（A.R.）,NH4Cl（A.R.）,Tb4O7（99.99%） and CeO2（99.99%） were used as starting materials,after these individual materials ground thoroughly in an agate mortar,the homogeneous mixture was heated at 900 ℃ for 3 h in reduce atmosphere,and these phosphors were obtained.The phase presents of the samples were characterized by powder X-ray diffraction（XRD）（D/max-rA,Cu Kα,40 kV,40 mA,λ=0.154 06 nm）.The excitation and emission spectra of these phosphors were measured by a SHIMADZU RF-540 fluorescence spectrophotometer.SrZnP2O7∶Ce3＋ shows a broad band at 329 nm.SrZnP2O7∶Tb3＋ has six emission peaks at 420,443,491,545,587 and 625 nm which correspond to the 5D3→7F5,5D3→7F4,5D4→7F6,5D4→7F5,5D4→7F4 and 5D4→7F3 characteristic transitions of Tb3＋,respectively,at 380 nm excitation.Monitoring 545 nm peak,the excitation spectrum extends from 200 nm to 400 nm,and the peak locates at 380 nm.Energy transfer from Ce3＋ to Tb3＋ in SrZnP2O7∶Ce3＋,Tb3＋ phosphor was investigated,and the emission intensity of SrZnP2O7∶Tb3＋ can be enhanced by energy transfer from Ce3＋ to Tb3＋.Under the conditions of charge compensator Li＋,Na＋,K＋ or Cl-incorporated in SrZnP2O7∶Tb3＋ phosphor,the emission intensities of the phosphor are enhanced,too.
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