کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7906285 | 1510752 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Up-conversion luminescence of GdVO4:Nd3+/Er3+ and GdVO4:Nd3+/Ho3+ phosphors under 808â¯nm excitation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In recent years, there exists a tendency in research of up-conversion materials to shift excitation from 980â¯nm to shorter wavelengths. Here, in order to produce up-conversion luminescence emission of GdVO4-based materials under 808â¯nm excitation, polycrystalline powders of GdVO4:Er3+/Nd3+ and GdVO4:Ho3+/Nd3+ were successfully prepared by a high-temperature solid-state reaction technique. The prepared powders were highly crystalline with a single-phase zircon-type GdVO4 structure and consisted of micrometer-sized irregular spherical particles (2-6â¯Î¼m in diameter). In all studied samples, visible up-conversion luminescence was successfully achieved under 808â¯nm illumination. Near-infrared pumping produced emission bands in the green, yellow-orange and green regions of the visible spectrum. The bands in the green and red regions of GdVO4: Er3+/Nd3+ as well as GdVO4:Ho3+/Nd3+ were, respectively, characteristic of Er3+ and Ho3+ ions. The dominant band originating from the 4G7/2â¯ââ¯4I11/2 transition in Nd3+ ions was observed around 597â¯nm in all samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 82, August 2018, Pages 1-6
Journal: Optical Materials - Volume 82, August 2018, Pages 1-6
نویسندگان
Dragana J. JovanoviÄ, Tamara V. GavriloviÄ, Slobodan D. DoliÄ, Milena MarinoviÄ-CincoviÄ, Krisjanis Smits, Miroslav D. DramiÄanin,