کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1813752 1025640 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dichroic dye-dependent studies in guest–host polymer-dispersed liquid crystal films
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Dichroic dye-dependent studies in guest–host polymer-dispersed liquid crystal films
چکیده انگلیسی

Guest–host polymer-dispersed liquid crystal (GHPDLC) films were prepared using a nematic liquid crystal, photo-curable polymer and dichroic dye (anthraquinone blue) by polymerization-induced phase separation (PIPS) technique. Non-ionic dichroic dye (1%, 2% and 4% wt./wt. ratio) was taken as guest in PDLC host. Polarizing microscopy shows that in the absence of electric field, liquid crystal (LC) droplets in polymer matrix mainly exhibit bipolar configuration, however, relatively at higher field, maltese-type crosses were observed. Our results show that ∼1% dye-doped PDLC film shows better transmission and faster response times over pure polymer-dispersed nematic liquid crystal (PDNLC) and higher concentrated (2% and 4%) GHPDLC films.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 405, Issue 1, 1 January 2010, Pages 161–166
نویسندگان
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