کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5347392 1503547 2017 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Morphology and optical properties of YVO4:Eu3+ nanoparticles fabricated by laser ablation in ethanol
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Morphology and optical properties of YVO4:Eu3+ nanoparticles fabricated by laser ablation in ethanol
چکیده انگلیسی
YVO4:Eu3+ nanoparticles were fabricated by pulsed laser ablation in water-ethanol mixtures with ethanol volume fractions of 0%, 10%, 30%, 50%, and 100%. Scanning electron microscopy and transmission electron microscopy were performed to characterize the nanoparticle morphologies and crystallinities. Photoluminescence and UV-vis absorption were used to investigate the optical properties. The results showed that only ovoid-like nanoparticles were obtained when using deionized water as the liquid medium. Sphere-shaped and ovoid-shaped nanoparticles simultaneously appeared after adding ethanol to the liquid; and finally, only spherical nanoparticles were obtained in pure ethanol. The crystallinities and PL intensities of the nanoparticles varied inversely to the corresponding liquid viscosity. When increasing the ethanol content, the UV-vis showed a blue shift that could be ascribed to the decreased covalence of VO bonds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 425, 15 December 2017, Pages 689-695
نویسندگان
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