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化学学报
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化学学报 ›› 2008, Vol. 66 ›› Issue (19): 2163-2169. 上一篇    下一篇

研究论文

萘酞菁锌复合体系的光致电荷转移

刘立维 施敏敏* 邓 丹 汪 茫 陈红征*

  

  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 高分子合成与功能构造教育部重点实验室
    杭州 310027)

  • 投稿日期:2008-02-22 修回日期:2008-04-07 发布日期:2008-10-14
  • 通讯作者: 陈红征

Photo-induced Charge Transfer in the Composites Based on Naphthalocyanine Zinc

LIU, Li-Wei SHI, Min-Min* DENG, Dan
WANG, Mang CHEN, Hong-Zheng*

  

  1. (State Key Laboratory of Silicon Materials & Education Ministry Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027)
  • Received:2008-02-22 Revised:2008-04-07 Published:2008-10-14
  • Contact: CHEN, Hong-Zheng

PDF

1674

被引次数

21

合成了萘酞菁锌, 利用傅立叶红外光谱、元素分析和MALDI-TOF质谱等手段表征了分子结构; 循环伏安测试和吸收光谱确认了共轭体系的扩大使分子带隙下降. 根据材料加工性能的不同, 分别采用溶液法、层-层蒸镀(Layer-by-layer evaporation)法和单层分散旋涂法, 将给体分子萘酞菁锌与三种受体分子1-(3-甲氧基羧基)丙基-1-苯 基-[6,6]C61, C60和N,N’-二嘧啶基苝四羧基二酰亚胺进行了复合, 通过研究复合前后荧光变化, 确认了给体-受体两相界面处发生了由分子能级差引发的光致电荷转移, 为制备更宽光伏响应范围的太阳能电池器件提供了潜在的新途径.

关键词: 萘酞菁锌, 电荷转移, 荧光淬灭, 分子带隙

Naphthalocyanine zinc (ZnNc) was synthesized and its molecular structure was characterized by FT-IR, elemental analysis, and MALDI-TOF mass spectrum. Cyclic voltammetry and optical absorption spectra confirmed that the extension of the conjugated system reduced the band gap of ZnNc compound. The composites of ZnNc with three electron acceptors of N,N’-di[2’-pyrimidinyl]-3,4,9,10-perylenetetracarboxylic diimide, C60, and 1-(3-methoxycarbonylpropyl)-1-phenyl[6,6]C61 were prepared by solution-blending, layer-by-layer evaporation, and spin-coating, respectively. The fluorescence quenching of the composites indicated that the photo-induced charge transfer occurred due to the energy level offset between the ZnNc and acceptor molecules.

Key words: naphthalocyanine zinc, charge transfer, fluorescence quenching, band gap