Large enhancement of upconversion luminescence of NaYF₄:Yb³⁺/Er³⁺ nanocrystal by 3D plasmonic nano-antennas.
نویسندگان
چکیده
We investigated the enhancment of the upconversion luminescence (UCL) of NaYF4:Yb 3 + /Er 3 + co-doped nanocrystals using a 3D plasmonic nanoantenna architecture: disk-coupled dots-onpillar antenna array (D2PA). By optimizing the D2PA structure, we observed a 310-fold UCL enhancement uniformly over a large area and an 8-fold reduction in the luminescence decay time. The enhancement factor is two orders of magnitude larger than the previously reported results on the same type UCL material. [ 1 ]
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ورودعنوان ژورنال:
- Advanced materials
دوره 24 35 شماره
صفحات -
تاریخ انتشار 2012