کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1496748 1510799 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Absorption and refractive index changes of poly (3-octylthiophene) under NO2 gas exposure
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Absorption and refractive index changes of poly (3-octylthiophene) under NO2 gas exposure
چکیده انگلیسی

Optical characterization of spin coated regioregular head-to-tail head-to-tail poly (3-octylthiophene) (P3OT) thin films under 5, 10 and 3000 ppm of NO2 with N2 balance is reported. Undoped and doped states mechanisms under gas flux and gas pressure are discussed based on changes in optical absorption and refractive index. Two energy levels at 0.65 and 1.60 eV as the polarons and bipolarons under a 3000 ppm NO2 doped state were observed and the origin discussed. A doped saturation and partial recovery levels were analyzed. A refractive index change from 1.6951 to 1.5346 at 633 nm for undoped and doped samples was obtained. Potential applications for optical sensors based on absorption and refractive index change are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 29, Issues 2–3, November 2006, Pages 167–172
نویسندگان
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