کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5460424 | 1516182 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Properties of a novel Ba5Si8O21:Eu2+, Nd3+ phosphor: Bulk and 1D nanostructure with PVP synthesized by sol-gel and electrospinning
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study, a sunlight-activated Ba5Si8O21:Eu2+, Nd3+ (BSEN) persistent luminescent particles were firstly synthesized by sol-gel method, and then combined with polyvinyl pyrrolidone (PVP) to fabricate one-dimensional functional fiber by electrospinning. XRD, photoluminescence, fluorescence microscope, SEM and TEM were used to investigate the crystal structure, the morphology, the luminescent properties and water resistance of BSEN particles and functional fibers. The results show that BSEN owns a monoclinic crystalline and can be effectively and repeatedly excited by both ultraviolet and sunlight. The BSEN particles were water-resistant and uniformly dispersed in the PVP fibers. Both BSEN particles and functional fibers possessed broad excitation spectra from 250Â nm to 450Â nm with maximum at 341Â nm and exhibited a fluorescent and phosphorescent emission band from 365Â nm to 650Â nm with maximum at around 489Â nm with long afterglow up to 240Â min. The new functional fiber has potential to be used in flexible coating, textile and optical display.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 712, 25 July 2017, Pages 213-218
Journal: Journal of Alloys and Compounds - Volume 712, 25 July 2017, Pages 213-218
نویسندگان
Yuanlin Yao, Zhufa Zhou, Feng Ye,