کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438968 | 1398190 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Large scale synthesis and photoluminescence properties of necklace-like SiC/SiOx heterojunctions via a molten salt mediated vapor reaction technique
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Large scale synthesis and photoluminescence properties of necklace-like SiC/SiOx heterojunctions via a molten salt mediated vapor reaction technique Large scale synthesis and photoluminescence properties of necklace-like SiC/SiOx heterojunctions via a molten salt mediated vapor reaction technique](/preview/png/5438968.png)
چکیده انگلیسی
Necklace-like SiC/SiOx heterojunctions were synthesized by a simplified vapor reaction technique using silicon powders as raw material without metallic catalyst or flowing gas at 1200 °C. Phase composition, morphology and microstructural characteristics of as-achieved products were characterized. The as-synthesized SiC/SiOx heterojunctions, up to millimeters in length, are composed of SiC/SiO2 core-shell chains with diameters of 0.3-1 µm and amorphous SiO2 beans with diameters of 2-5 µm. The growth mechanism of the as-synthesized SiC/SiO2 core-shell chains is most likely controlled by vapor-solid mechanism. The formation of SiO2 beans can be mainly attributed to the Rayleigh instability and surface tension. The photoluminescence spectra of the as-received products exhibit a significant violet-blue emission, making a potential application in violet-blue emitting devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 3, 15 February 2017, Pages 2950-2955
Journal: Ceramics International - Volume 43, Issue 3, 15 February 2017, Pages 2950-2955
نویسندگان
Wei Li, Quanli Jia, Xinhong Liu, Ju Zhang,