Series A: No 9 - September 2017 (702)
POLICY AND MANAGEMENT
SCIENCE - TECHNOLOGY AND INNOVATION
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SCIENTIFIC AND TECHNOLOGICAL FORUM
Series B: Vol. 20 - Number 9 - September 2017
This publication is so-called Series B, written in Vietnamese and abstracted in English, and aimed at publishing research works in five fields: natural sciences, engineering and technology, medical and health sciences, agricultural sciences, and social sciences and humanities. Click here to see the full issue Series B: Vol 20 - No 9 - September 2017.
ENGINEERING AND TECHNOLOGY
Vietnam Journal of Science, Technology and Engineering: Vol. 59 Number 3
Vietnam Journal of Science, Technology and Engineering's Vol. 59 Number 3 is now available to all readers.
The cover illustrates the schematic illustration of the synthesis of α-NaYF4:Yb3+/Er3+/PVP/MOF multilayer nanocrystals. The precursor PVP-capped α-NaYF4:Yb3+/Er3+ nanospheres were used as the templates for preparing the α- NaYF4:Yb3+/Er3+/PVP/MOFs multilayer nanocrystals with a self-template method. The UCL spectra studies demonstrated that the integrated intensity ratio of green to red emissions increased from 0.13 to 1.01 when adding the layers of PVP, PVP/ZIF-8 or PVP/MIL-100 on the surface of the α- NaYF4:Yb3+/Er3+ nanoparticles.
Please see the article "Synthesis, characterization and up-conversion luminescence properties of α-NaYF4:Yb3+/Er3+/PVP/MOF multilayer nanocrystals" in pages 79-84 of this issue for more details.