کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1526484 | 995371 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel chemical synthetic route and characterization of tungsten diselenide thin films
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
چکیده انگلیسی
Polycrystalline WSe2 semiconductor thin films were obtained by relatively simple chemical bath deposition method using the sodium tungstate, tartaric acid, hydrazine hydrate and sodium selenosulphate as a precursor sources in an aqueous alkaline medium at room temperature. Various preparative conditions of WSe2 thin films are outlined. The grown films were found to be uniform, well adherent, brown in color. The films were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), optical absorption and electrical conductivity properties. The optical study shows a direct band gap nature with band gap energy 1.48 eV, and having specific electrical conductivity of the order of 10−2 Ω−1 cm−1 showing n-type conduction mechanism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 113, Issue 1, 15 January 2009, Pages 183–186
Journal: Materials Chemistry and Physics - Volume 113, Issue 1, 15 January 2009, Pages 183–186
نویسندگان
P.P. Hankare, A.H. Manikshete, D.J. Sathe, P.A. Chate, K.C. Rathod,