Miscibility and Molecular Orientation of Carbazole in Mixed Langmuir and Langmuir-Blodgett Films  

作　　者：Md. N. Islam D. Bhattachaxjee S. A. Hussain 

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

出　　处：《Chinese Physics Letters》2007年第7期2044-2047,共4页中国物理快报（英文版）

摘　　要：We report the miscibility and molecular orientation of carbazole （CA） molecules in the mixed Langmuir and Langmuir-Blodgett （LB） films of CA in polymethyl methacrylate （PMMA） and stearic acid （SA） matrices. The lr-A isotherm confirms the formation of stable Langmuir films of CA mixed with either PMMA or SA at airwater interface. ＇Characteristics of area per molecule versus molefraction and collapse pressure versus molefraction reveal complete demixing of CA and the matrix PMMA/SA molecules in the mixed films. Absorption spectroscopy certainly confirms the fact that CA molecules have preferred orientation on the substrate of the LB films.We report the miscibility and molecular orientation of carbazole （CA） molecules in the mixed Langmuir and Langmuir-Blodgett （LB） films of CA in polymethyl methacrylate （PMMA） and stearic acid （SA） matrices. The lr-A isotherm confirms the formation of stable Langmuir films of CA mixed with either PMMA or SA at airwater interface. ＇Characteristics of area per molecule versus molefraction and collapse pressure versus molefraction reveal complete demixing of CA and the matrix PMMA/SA molecules in the mixed films. Absorption spectroscopy certainly confirms the fact that CA molecules have preferred orientation on the substrate of the LB films.

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分 类 号：O484[理学—固体物理]