کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5360186 1388257 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of thickness on structural, optical and electrical properties of nanostructured ZnO thin films by spray pyrolysis
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Effect of thickness on structural, optical and electrical properties of nanostructured ZnO thin films by spray pyrolysis
چکیده انگلیسی
Transparent conducting zinc oxide thin films were prepared by spray pyrolytic decomposition of zinc acetate onto glass substrates with different thickness. The crystallographic structure of the films was studied by X-ray diffraction (XRD). XRD measurement showed that the films were crystallized in the wurtzite phase type. The grain size, lattice constants and strain in films were calculated. The grain size increases with thickness. The studies on the optical properties show that the direct band gap value increases from 3.15 to 3.24 eV when the thickness varies from 600 to 2350 nm. The temperature dependence of the electrical conductivity during the heat treatment was studied. It was observed that heat treatment improve the electrical conductivity of the ZnO thin films. The conductivity was found to increase with film thickness.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 255, Issue 8, 1 February 2009, Pages 4579-4584
نویسندگان
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