کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7118645 | 1461406 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication and study of properties of the PLA/Sr2MgSi2O7:Eu2+, Dy3+ long-persistent luminescence composite thin films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, Sr2MgSi2O7:Eu2+,Dy3+ (SMS) particles were first synthesized by sol-gel method and then modified with 3-aminopropyltriethoxysilane (APS) to improve their dispersibility and compatibility in the polylactic acid (PLA) matrix. The structure of pure SMS particles was analyzed by XRD and XPS. The properties of SMS particles before and after modification were characterized by FT-IR and SEM. PLA/SMS composite films containing 15Â wt% of SMS particles were prepared by spin coating on silicon wafer. Their morphology and luminescence properties were examined. It was found that the composite films can be excited by a broad band from 330Â nm to 425Â nm with the highest excitation intensity at 360Â nm. The fluorescent and phosphorescent emission bands of the composite films and SMS particles all have a major emission peak at 468Â nm. Decay curves of the composite films have a similar tendency with that of the pure SMS particles, except for the lower intensity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science in Semiconductor Processing - Volume 40, December 2015, Pages 130-135
Journal: Materials Science in Semiconductor Processing - Volume 40, December 2015, Pages 130-135
نویسندگان
Xingxing Zhang, Zhufa Zhou, Feng Ye, Xu Liu, Qiru Li,