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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (18): 1676-1680. 上一篇    下一篇

研究论文

2,5-双(乙炔基二茂铁)噻吩/钨磷杂多酸纳米杂化LB膜的制备与光电性质研究

李明轩1, 柳利*,1，柳士忠1，张春梅2，杜祖亮2，黄维杨3   

  1. (1湖北大学化学与材料科学学院 武汉 430062)
    (2河南大学特种功能材料重点实验室 开封 475001)
    (3香港浸会大学理学院化学系 香港)
  • 投稿日期:2005-03-08 修回日期:2005-07-12 发布日期:2010-12-10
  • 通讯作者: 柳利

Studies of the Preparation and Photo-electric Properties of Nanohybrid LB Films of 2,5-Bis(ferrocenylethynyl)thiophene/ tungstophosphoric Heteropolyacids

LI Ming-Xuan1, LIU Li*, 1, LIU Shi-Zhong1, ZHANG Chun-Mei2, DU Zu-Liang2, WONG Wai-Yeung3   

  1. (1Faculty of Chemistry and Material Science, Hubei University, Wuhan 430062)
    (2Key Laboratory of Special Functional Materials, Henan University, Kaifeng 475001)
    (3Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Hong Kong)
  • Received:2005-03-08 Revised:2005-07-12 Published:2010-12-10
  • Contact: LIU Li

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1473

被引次数

8

以含有共轭大π键的2,5-双(乙炔基二茂铁)噻吩(BFET)和二甲基双十八烷基铵(DMDOA)与Keggin结构和Dawson结构钨磷杂多酸做成膜材料, 用LB技术组装了两种新型无机-有机杂化LB膜. 用π-A曲线、UV-vis吸收光谱、原子力显微镜(AFM)、扫描隧道显微镜(STM)、荧光光谱和表面光电压谱(SPS)对标题LB膜的成膜性能、结构及光电性质进行了研究, 发现标题杂化LB膜的粒子具有纳米尺寸, 在可见光区有较强的光电压响应, 在电压为±2.0 V时, 隧道电流值达到±100 nA.

关键词: 多金属氧酸盐, 2,5-双(乙炔基二茂铁)噻吩(BFET), 二甲基双十八烷基铵(DMDOA), LB膜, 光电性质

Two new nanohybrid 2,5-bis(ferrocenylethynyl)thiophene (BFET)/dimethyldioctadecyl-ammonium (DMDOA)/tungstophosphoric heteropolyacids (HPA, HPA＝H3PW12O40, H6P2W18O62) LB films were prepared and characterized by π-A isotherms, UV-vis absorption spectra, atomic force microscopy, scanning tunneling microscopy, surface photo voltage spectroscopy and fluorescence spectra. The results indicated that the title LB films had the nanosize and quite strong photovoltage response in the visible region. The tunneling current was ±100 nA, when voltage was ±2.0 V.

Key words: polyoxometalate, 2,5-bis(ferrocenylethynyl)thiophene, dimethyldioctadecylammonium, hybrid Langmuir-Blodgett film, photo-electric property