کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10642305 | 997647 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Self-assembled nanocrystalline CdSe 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
Self-assembled nanocrystalline cadmium selenide (Q-CdSe) thin films of different grain size have been successfully deposited by wet chemical technique. The method allows a controlled formation of the self-assembled structure with different grain size by varying the concentration of surfactant (TOPO) in an electrolyte containing CdCl2, NH4Cl and Na2SeSO3 at pH 8 and temperature 36 °C. Effect of particle size on the structural, optical and morphological properties has been studied and correlated. Atomic force microscopy investigation indicated that the as-deposited films were smooth, compact and exhibited tendency for self-organisation. Size of CdSe nanoparticles can be altered from 18 nm (bulk) to 2.3 nm. The nanocrystalline film shows hexagonal structure. Blue shift has been observed in optical absorption and photoluminescence spectra. The microstructural strain calculated from peak broadening revealed an increase in strain with decreasing particle size.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 28, Issue 4, September 2005, Pages 439-446
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 28, Issue 4, September 2005, Pages 439-446
نویسندگان
Shweta Chaure, Nandu B. Chaure, R.K. Pandey,