کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7001125 | 1454757 | 2018 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of chromium on structural, non-linear optical constants and transport properties of CdO thin films
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Transparent and conducting CdO and Cr doped CdO (CdO:Cr) crystalline films were prepared on glass substrate at 350 °C by cost effective spray pyrolysis technique. Structural analysis indicates CdO:Cr films are polycrystalline cubic structure comprises with spherical or semi-spherical nano-scale particles. The direct band gap energy of CdO was found to change with Cr doping. The photoluminescence (PL) spectra of CdO show extended band edge emissions accompanied by red emission originated from different impurity states. The optical dispersion parameters calculated using Wemple-DiDomenico single-oscillator model were found to vary with Cr concentration in CdO. The dispersion energy of oscillator found to decrease with increasing Cr concentration. Simultaneously, the variation of third-order nonlinear susceptibility with photon energy was found to decrease with increasing Cr concentrations. Hall study confirms that CdO and CdO:Cr films are n-type semiconductor having carrier concentration of the order of â¼1019 cmâ3. The obtained physical properties of CdO film were improved by Cr doping which make them suitable for optoelectronic applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surfaces and Interfaces - Volume 12, September 2018, Pages 135-144
Journal: Surfaces and Interfaces - Volume 12, September 2018, Pages 135-144
نویسندگان
M. Ashaduzzman, M.K.R. Khan, A.M.M. Tanveer Karim, M. Mozibur Rahman,