Open AccessThe dipole interaction model of the molecular aggregation in Y-type Langmuir-Blodgett film
Author(s) -
Lei Bai,
Han Kui,
Tang Gang,
Haipeng Li,
Hongtao Wang,
Huang Zhi-Min,
Zhaohui Zhang
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.6565
Subject(s) - langmuir–blodgett film , dipole , type (biology) , materials science , absorption (acoustics) , tilt (camera) , molecule , langmuir , amphiphile , physics , chemical physics , monolayer , optics , chemistry , nanotechnology , adsorption , polymer , quantum mechanics , copolymer , composite material , geometry , ecology , biology , mathematics
Based on the classical electrostatic theory, the model of dipole-dipole interaction of rod-like amphiphilic molecules in Y-type Langmuir-Blodgett (LB) film is presented in the paper. The relations between the structure and spectral absorption peak of LB films were obtained by using this model. For Y-type films, the relationship of molecular aggregation state and the structure parameters, i.e. molecular separation distance a, separation d between two adjacent layers, molecular tilt angle θ, and layer number g, were studied using our model. Then we compared the similarities and differences of aggregation behavior between Y-type and Z-type films. The theoretical results agree well with experimental data.