CRCU

Chemical Research in Chinese Universities ›› 2002, Vol. 18 ›› Issue (3): 325-329.

• Articles • Previous Articles     Next Articles

Multifunctional Langmuir-Blodgett film of an Amphiphilic Benziminazole Styryl Dye

ZHENG Jie1, LI Fu-you1, HUANG Chun-hui1, YU An-Chi2, ZHAO Xin-Sheng2   

  1. 1. State Key Laboratory of Rare Earth Materials Chemistry and Applications and the University of Hong Kong Joint Laboratory on Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing 100871, P. R. China;
    2. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2001-08-23 Online:2002-08-24 Published:2011-08-04
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos. 59872001, 20023005) and the State Key Project for Fundamental Research(No.G1998061308).

PDF (PC)

Abstract: An amphiphilic benziminazole styryl dye, 2-(4-dihexadecylaminostyryl)benziminazolium TCNQ-(DBTCNQ), was synthesized and successfully transferred onto the substrates by Langmuir-Blodgett(LB) technique. H-aggregates were formed on the substrates. Its monolayer second-order susceptibility[χzzz(2)=109 p/mV) was determined with a polarized laser beam(Nd∶YAG, λ=1.064 μm). The photoelectrochemistry of the dye LB monolayer films was investigated in a traditional three-electrode cell. The quantum efficiency of photoelectric conversion is 1.08% under favorable conditions [-200 mV, 0.5 mg/mL methylviologen diiodide(MV2+) in 0.5 mol/L KCl electrolyte solution]. The experimental data indicate that the LB film exhibits multifunctional properties.

Key words: Multifunction, Langmuir-Blodgett films, Benziminazole styryl dye