کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1552930 | 1513215 | 2015 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of catalysts on the synthesis of CuO nanoparticles: Structural and optical properties by sol-gel method
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of catalysts on the synthesis of CuO nanoparticles: Structural and optical properties by sol-gel method Effect of catalysts on the synthesis of CuO nanoparticles: Structural and optical properties by sol-gel method](/preview/png/1552930.png)
چکیده انگلیسی
Copper oxide nanoparticles (NPs) were prepared using two different catalysts NaOH and KOH by a low cost sol-gel method. The prepared nanoparticles were studied using X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray spectra (EDX), photoluminescence (PL), UV-Vis and Fourier transform infrared (FTIR) spectroscopic techniques. XRD spectrum confirmed the monoclinic structure of CuO nanoparticles and showed its polycrystalline nature without any impurity. PL spectra of CuO nanoparticles were recorded with different excitation sources (325Â nm & 355Â nm) and near band edge and defects related emission peaks were observed. A strong fundamental absorption and high absorption coefficients were observed from UV-Vis spectra, based on which the optical parameters like refractive index, extinction coefficient, Urbach energy and optical conductivity were calculated and discussed in detail. Vibrational modes of CuO nanoparticles were observed from the FTIR spectra.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 86, October 2015, Pages 203-210
Journal: Superlattices and Microstructures - Volume 86, October 2015, Pages 203-210
نویسندگان
V. Usha, S. Kalyanaraman, R. Thangavel, R. Vettumperumal,