کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5400524 | 1505912 | 2014 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aggregation properties of tetrachloroperylene-tetracarboxylic acid in binary Langmuir and Langmuir-Blodgett films
ترجمه فارسی عنوان
خواص همگن سازی تتراکلروپریلن تتراکارباکسیک اسید در فیلمهای لنموری و لنگمیر بلوچ
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
The Langmuir and Langmuir-Blodgett films formed of tetra-n-butyl-1,6,7,12-tetrachloroperylene-3,4,9,10-tetracarboxylate and its binary mixtures with 4-octyl-4â²-cyanobiphenyl and arachidic acid have been studied. The Langmuir films were characterized by surface pressure versus mean molecular area isotherms and the films morphology observations were made by means of a Brewster angle microscope. The miscibility of the compounds was determined. Subsequently, the Langmuir films were transferred onto hydrophilic quartz substrates forming the monolayer Langmuir-Blodgett films. The electronic absorption and fluorescence spectra reveal aggregation of the chromophores in ground state driven by Ï-Ï molecular orbitals interactions. Perylene-like dye aggregation depends upon the dye concentration in the dye/liquid crystal mixed films and is concentration-independent in dye/arachidic acid one.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 148, April 2014, Pages 44-54
Journal: Journal of Luminescence - Volume 148, April 2014, Pages 44-54
نویسندگان
Anna ModliÅska, Emilia Piosik, Joanna Paluszkiewicz, Tomasz MartyÅski,