Effect of Temperature and Ionic Concentration on Self-Assembled Films of Chicago Sky Blue  

作　　者：D. Dey M. N. Islam S. A. Hussain D. Bhattacharjee 

机构地区：[1]Department of Physics, Tripura University, Suryamaninagar-799130, Tripura, India

出　　处：《Chinese Physics Letters》2008年第10期3732-3734,共3页中国物理快报（英文版）

摘　　要：We employ a layer-by-layer adsorption technique for deposition on solid substrates of polyionic films of Chicago Sky Blue. Film growth was significant with the increasing number of layers. Photochemical properties of these films are investigated for different ionic concentrations. A significant blue shift is observed with the increasing ionic strength of the solution, suggesting the formation of aggregation. Temperature effect studies show some preferable reorientation of molecules in the film during cooling process. Most remarkable observation is that the absorption intensity is the highest for a particular degree of inclination. Deposition time is fixed at 15rain because adsorption kinetics results show saturation after 15 min.We employ a layer-by-layer adsorption technique for deposition on solid substrates of polyionic films of Chicago Sky Blue. Film growth was significant with the increasing number of layers. Photochemical properties of these films are investigated for different ionic concentrations. A significant blue shift is observed with the increasing ionic strength of the solution, suggesting the formation of aggregation. Temperature effect studies show some preferable reorientation of molecules in the film during cooling process. Most remarkable observation is that the absorption intensity is the highest for a particular degree of inclination. Deposition time is fixed at 15rain because adsorption kinetics results show saturation after 15 min.

关 键 词：the power-law exponents PRECIPITATION durative abrupt precipitation change 

分 类 号：O484[理学—固体物理]