摘要
合成了化合物4 N,N 二苯胺基均二苯乙烯,通过红外光谱、核磁共振谱、质谱等手段确证了所合成化合物的结构,用紫外光谱、荧光光谱、循环伏安法(CV)、微分脉冲伏安法(DPV)测试了其光电性能,解析了其电化学行为。计算出DPAS的带隙Eg(opt.)为2.88eV,电离势为5.86eV,电子亲和势为2.98eV。结果表明该化合物是优良的空穴高效注入和传输的蓝色有机电致发光材料。
An electroluminescent material, 4-N,N-diphenylaminostilbene(DPAS), was synthesized. It exhibits intense fluorescence in CHCl_3 (the emission maximum was located at 435nm). Cyclic Voltammetry and Differential Pulse Voltammetry were used to determine its electrochemical properties. After the formation of an unstable monocation radical DPAS undergoes further oxidation in two discrete one-electron steps to give the DDPAS^+. monocation and finally the quinoidal DDPAS^(2+). DPAS has a band gap of 2.88eV, an ionization potential (PI) of 5.86 eV and an electro affinity (EA) of 2.98eV, which indicate that DPAS is a good candidate as electroluminescence emitting material with good hole-transporting property.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2004年第6期750-751,754,共3页
Journal of Functional Materials
基金
国家自然科学基金资助项目(20076005)
关键词
三苯胺
电致发光
空穴传输
光电性能
triphenylamine
electroluminescence
hole-transporting material
properties of photo-electricity
