【摘要】 采用三种配体苯甲酰丙酮(BA)、苯甲酰三氟丙酮(BFA)、α-噻吩甲酰三氟丙酮(TTFA)与EuCl3和SmCl3合成了六种二元配合物Eu(TTFA)3,Eu(BA)3,Eu(BFA)3,Sm(TTFA)3,Sm(BA)3,Sm(BFA)3,通过测试比较其荧光光谱发现Eu(TTFA)3,Eu(BA)3,Eu(BFA)3在618nm处产生很强的荧光;Sm(TTFA)3,Sm(BA)3,Sm(BFA)3在650nm处有荧光峰产生;通过分析配合物和配体的能级关系,不同配体间发光效率的差异,不同稀土离子的发光特性的差异,发现了TTFA是Sm3+和Eu3+的优良配体,Eu3+具有较高的发光效率。在Sm3+和Eu3+的共掺杂中,选取TTFA做配体,发现Sm3+对Eu3+有明显的敏化效应。更多还原

【Abstract】 Six complexes of Eu(TTFA)3,Eu(BA)3,Eu(BFA)3,Sm(TTFA)3,Sm(BA)3,Sm(BFA)3 were compounded by using three ligands,which are Benzoylacetone(BA) α-thenoyltrifluoroacetone(TTFA) 3-benzoyl-1,1,1-trifluoroacetone(BFA).The fluorescence Properties of above six complexes were measured.The results showed that the complex of Eu(TTFA)3,Eu(BA)3,and Eu(BFA)3 existed a strong fluorescence in 618nm,and Sm(TTFA)3,Sm(BA)3 and Sm(BFA)3 existed a fluorescence peak in 650nm.The relationship of energy level between complex and ligands were analyzed,the different efficiency of various ligands,as well as the fluorescence efficiency difference of two rare earth ions were analyzed also.The experimental results indicated that TTFA is an excellent ligands to Sm3+ Eu3+,and Eu3+ ion has higher fluorescence efficiency.Sm3+ has sensitization effort to Eu3+,when TTFA was used.更多还原