کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9812455 1518113 2005 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two-dimensional ZnO:Al nanosheets and nanowalls obtained by Al2O3-assisted carbothermal evaporation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Two-dimensional ZnO:Al nanosheets and nanowalls obtained by Al2O3-assisted carbothermal evaporation
چکیده انگلیسی
Free-standing, two-dimensional ZnO nanosheets and branched honeycomb-like nanowalls have been grown together with one-dimensional nanothreads on gold covered a-plane sapphire and GaN templates on silicon substrates using Al2O3 assisted carbothermal evaporation of ZnO. In X-ray diffraction 2Θ−ω scans two orientations, ZnO(0001) and ZnO(10-11), of the two-dimensional nanosheets were detected. Temperature dependent cathodoluminescence shows bound exciton and donor-acceptor pair recombinations with a linewidth of 2.1 meV at 10 K. We show that the formation of the novel Al-doped ZnO nanostructures is due a vapor-liquid-solid mechanism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 486, Issues 1–2, 22 August 2005, Pages 191-194
نویسندگان
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