کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5007617 | 1461611 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced upconversion luminescence of NaYF4:Yb, Er microprisms via La3+ doping
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A series of β-NaYF4: Yb, Er micro-prisms codoped with La3+(0-30 at%) were synthesized via hydrothermal process. Upon 980 nm excitation at room temperature, 20 mol% La3+ codoped sample shows a maximum upconversion emission intensity. Excitation power density dependencies of UC luminescence and the decay curves were investigated. The UCPL decay is evidently monoexponential for all samples and La3+ doping did not significantly change the decay time. In this particular case, we found the napierian logarithm of the UC emission intensity (lnI) had a good linear relationship with the cell lattice parameters. This correlation may be helpful for design and fabrication of high performance upconversion materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 88, February 2017, Pages 280-286
Journal: Optics & Laser Technology - Volume 88, February 2017, Pages 280-286
نویسندگان
Junxiang Fu, Xiaozeng Zhang, Zhicong Chao, Zibo Li, Jinsheng Liao, Dejian Hou, Herui Wen, Xiaoneng Lu, Xinrong Xie,