کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1442329 1509439 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and photovoltaic property of poly(3-octylthiophene)/titanium dioxide/ferric oxide composite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Synthesis and photovoltaic property of poly(3-octylthiophene)/titanium dioxide/ferric oxide composite
چکیده انگلیسی
Titanium dioxide and ferric oxide were prepared by the supercritical fluid drying (SCFD) method. A conducting polymer composite, poly(3-octylthiophene)/titanium dioxide/ferric oxide (POT/TiO2/Fe2O3) was first synthesized by chemical method. Transmission electron microscope (TEM) and scanning electron microscope (SEM) depicted the morphology of the samples, defining that TiO2 and Fe2O3 were successfully coated by poly(3-octylthiophene) molecules. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy (IR) showed the chemical interaction between poly(3-octylthiophene) and inorganic compounds in the composite. Cyclic voltammetry (CV) curves showed that the forbidden band gap of the POT/TiO2/Fe2O3 composite is 0.691 eV, realizing the complementary advantages of n and p semiconductor. UV-vis spectra (UV) and fluorescence spectra (PL) showed that its optical performance is far superior to poly(3-octyl thiophene), titanium dioxide and ferric oxide separately. Solar cell was sensitized by POT/TiO2/Fe2O3. A solar-to-electric energy conversion efficiency of 0.499% was attained with the system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 160, Issues 19–20, October 2010, Pages 2167-2174
نویسندگان
, , , , ,