欢迎登录材料期刊网

材料期刊网

高级检索

以邻苯二甲酸酐、二苯胺、4-氨基安替吡啉和三氧化二铕为原料合成了Eu(PPA)3Phen和Eu(APA)3Phen.使用核磁和质谱对配体和配合物进行了表征,研究了紫外、荧光光谱、磷光寿命、热稳定性和电化学性质.结果表明,配合物的紫外吸收分别表现出生成它们各自配体的紫外吸收特征,Eu(PPA)3Phen和Eu(APA)3Phen在613nm处有很强的荧光发射,归属于Eu3+的5D0→7F2的特征发射,此外,在590nm处都有荧光发射.测得两种配合物粉末的磷光寿命,它们相差较大,Eu(PPA)3Phen有三个磷光寿命都约为0.0.45μs,Eu(APA)3Phen有两个磷光寿命都为650μs.热重分析表明,Eu(PPA)3Phen在30℃~260℃分解大约10%,而Eu(APA)3Phen在70℃~240℃分解大约5%.使用循环伏安法研究了Eu(PPA)3Phen和Eu(APA)3Phen的电化学性质,结果表明两者都约在0.86V处有不可逆的氧化电位值.

参考文献

[1] Sun M;Xin H;Wang K Z et al.Bright and monochromic red light -emitting enectroluminescence devices based on a new multifunc -tional europium ternary complex[J].Chemical Communications,2003,6:702-703.
[2] He GF;Pfeiffer M;Leo K;Hofmann M;Birnstock J;Pudzich R;Salbeck J .High-efficiency and low-voltage p-i-n electrophosphorescent organic light-emitting diodes with double-emission layers[J].Applied physics letters,2004(17):3911-3913.
[3] Suzuki M;Tokito S;Sato F et al.High-efficiency white phosphorescent polymer light-emitting devices[J].Applied Physics Letters,2005,86:103507-103509.
[4] 姚丽珠,田彦文,储刚.纳米La_2O_3粉晶的制备及其表征[J].稀土,2009(06):35-38.
[5] Sotoyama W;Satoh T;Sawatar N et al.Highly efficient organic electro-phosphorescent light-emitting diodes with a reduced quantum efficiency roll off at large current densities[J].Applied Physics Letters,2005,86:153505-153507.
[6] 葛杏心,孙艳辉,刘聪,符远翔.稀土蓝色光致发光材料研究进展[J].稀土,2009(01):80-85.
[7] 翟永清,焦芳芳,郭冰,张爽,牛强.蓝紫色发光材料CaMgSi2O6:Eu2+的凝胶-燃烧法合成及表征[J].稀土,2009(01):6-9.
[8] Huang L.;Huang CH.;Li FY.;Huang YY.;Wang KZ. .Bright red electroluminescent devices using novel second-ligand-contained europium complexes as emitting layers[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2001(3):790-793.
[9] Holmes R J;D' Andrade B W;Forrest S R et al.Efficient,deep-blue organic electrophosphorescence by guest charge trapping[J].Applied Physics,2003,83:3818-3820.
[10] Duan J P;Sun P P;Cheng C H .New Iridium Complexes as Highly Efficient Orange-Red Emitters in Organic Light-Emitting Diodes[J].Advanced Materials,2003,15:224-228.
[11] Deqing Gao;Zuqiang Bian;Kezhi Wang .Synthesis and electroluminescence properties of an organic europium complex[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2003(1/2):188-192.
[12] Mitsuharu Noto;Kazutaka Irie;Masanao Era .Efficient Red Electroluminescence from New Europium Complex[J].Chemistry Letters,2001(4):320-321.
[13] 刘崇波,向丽,李新新,温辉梁.{[Eu(2,5-PDA)(OAc)(H2O)]·1.5H2O}n稀土配合物的晶体结构及荧光性质[J].高等学校化学学报,2006(12):2256-2259.
[14] 杨锐,何水样,武望婷,史启祯,王大奇.[Eu(C10H9N2O4)(C10H8N2O4)(H2O)3]2·phen·4H2O超分子化合物的晶体结构、荧光性质及热稳定性[J].高等学校化学学报,2005(03):401-406.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%