氟代⊥酰亚胺掺杂PVK薄膜的结构特性和光电导性能  

Photoconductive and Structural Properties of Fluoroperylene Diimide-doped PVK Film

作　　者：施敏敏[1] 陈红征[1] 孙景志[1] 叶坚[1] 汪茫[1] 

机构地区：[1]浙江大学高分子科学与工程学系硅材料国家重点实验室,杭州310027

出　　处：《化学通报》2004年第1期39-42,共4页Chemistry

基　　金：国家自然科学基金 (5 0 1730 2 1;5 0 2 2 5 312 );教育部跨世纪人才基金资助项目

摘　　要：采用一种新型的有机电子受体 N,N′-二 (五氟代苯基 ) - 3,4 ,9,10 -⊥四羧基二酰亚胺(DFPP) ,与空穴传输材料聚乙烯基咔唑 (PVK)掺杂复合 ,制备了单层有机光电导体 ,发现无论是在充正电还是在充负电情况下 ,该复合光电导体均表现出十分优异的光电导性能。结合 DSC、UV- Vis吸收、XPS和循环伏安等测试手段研究了 DFPP掺杂的 PVK薄膜的凝聚态、光学和电学性质 ,发现 DFPP与PVK形成了给体 -受体 (D- A)复合物 ,而且 DFPP分子可在薄膜中形成电子传输通道 ,由此使 DFPP掺杂In this paper, a novel organic electron acceptor, N,N′-diperfluorophenyl-3,4,9,10-perylenetetracarboxylic diimide (DFPP), was used to dope a hole-transporting material, poly(N-vinyl carbazole) (PVK), the obtained DFPP-PVK composite film was made for a single-layer photoreceptor (SLPR), which exhibited excellent photoconductivity whether charged negatively or positively. The structural, optical and electronic properties of the DFPP-PVK film were studied through UV-Vis absorption, DSC, XPS and cyclic voltammetry (CV) measurements. It was demonstrated that D-A complex formed between DFPP (A) and PVK (D), and electron transport channels composed of DFPP molecules might exist in the film, thus offering the film having not only high exciton dissociation efficiency but also excellent electron transport ability.

关 键 词：氟代苝酰亚胺掺杂PVK薄膜 结构特性 光电导性能 单层有机光电导体 电子传输能力 光致激子分离效率 

分 类 号：O484.4[理学—固体物理]