本文采用高温固相法合成了一种新型荧光粉SrCaSi04:Eu,Ce,并对其进行了光谱及荧光寿命衰减曲线的测试。结果表明:SrCaSiO4:0.005Eu2+,0.01Ce3+可和紫外LED相匹配发射蓝绿光,且在该体系中存在着Ce3+到Eu2+的能量传递;在荧光粉SrCaSiO4:Eu2+中共掺Ce3+将会使Eu2+的荧光寿命增长,同时发现此体系的Ce3+荧光寿命变短,这也证明了在此体系中存在着能量传递。
SrCaSiO4: Eu2 +, Ce3 + has been prepared through high-temperature solid state reaction, and the spectrum and lifetime decay curves has been tested. The phosphors can match UV LED, and emit a broad band with a maximum at 500 nm. In SrCaSiO4: Ce3+ ,Ell2+ phosphors, energy transfer could been found between Ce3 + and Eu2+. In the fluorescent powder SrCaSiO4: Eu2+ , the doping Ce3+will make Eu2+ decay lifetime increase, and make Ce3+decay lifetime become short, it also proves that there exist energy transfer.