Search Results - "Cao, Dung T."
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Luminescent Ink Based on Upconversion of NaYF4:Er,Yb@MA Nanoparticles: Environmental Friendly Synthesis and Structural and Spectroscopic Assessment
Published in Molecules (Basel, Switzerland) (17-02-2021)“…NaYF4:Er,Yb upconversion luminescent nanoparticles (UCNPs) were prepared by hydrothermal methods at 180 °C for 24 h. The X-ray diffraction (XRD) and TEM…”
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Journal Article -
2
Understanding up and down-conversion luminescence for Er3+/Yb3+ co-doped SiO2-SnO2 glass-ceramics
Published in Journal of alloys and compounds (25-07-2021)“…•Er3+ and Yb3+ ions incorporation in SnO2 crystals were confirmed by XPS.•Emission at 1.5 µm was remarkably enhanced due to Yb3+ doping.•Sensitizers (SnO2, Yb)…”
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Journal Article -
3
How Will the End of Bear Bile Farming in Vietnam Influence Consumer Choice?
Published in Conservation and society (01-01-2022)“…The Vietnamese Government committed to closing all bear farms in the country by 2022. Some researchers have expressed concerns that ending the commercial…”
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Journal Article -
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Improve Quora Question Pair Dataset for Question Similarity Task
Published in 2021 RIVF International Conference on Computing and Communication Technologies (RIVF) (19-08-2021)“…Automatic detection of semantically equivalent questions is a task of the utmost importance in a question answering system. The Quora dataset, which was…”
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Conference Proceeding -
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Intense green upconversion in core-shell structured NaYF4:Er,Yb@SiO2 microparticles for anti-counterfeiting printing
Published in Ceramics international (01-09-2023)“…Rare-earth-doped NaYF4 nanoparticles are considered crucial upconversion luminescent materials with many applications, including anti-counterfeiting printing,…”
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Journal Article -
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Emission of Eu3+ in SiO2-ZnO glass and SiO2-SnO2 glass-ceramic: Correlation between structure and optical properties of Eu3+ ions
Published in Journal of non-crystalline solids (01-03-2017)“…SiO2:Eu3+ based free-crack transparent bulk composites containing two types of semiconductor nanoparticles (SnO2 or ZnO) were synthesized by sol-gel process…”
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Journal Article -
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Remarkable enhancement of Er3+ emission at 1.54 μm in Er/Yb co-doped SiO2-SnO2 glass-ceramics
Published in Journal of alloys and compounds (15-08-2018)“…In this study, the Er3+ and Yb3+ ions are incorporated in SiO2-SnO2 glass-ceramics containing SnO2 crystals with the size of 5 nm. XRD and TEM results show…”
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Journal Article -
8
Effect of the Eu3+-Sn4+ substitution on the structural and optical properties of SnO2:Eu3
Published in Journal of luminescence (01-12-2020)“…SnO2 nanocrystals with an average partiaxsxddccle size around 50 nm were prepared by using hydrothermal method. X-ray Diffraction (XRD) and Scanning Electron…”
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Journal Article -
9
Remarkable enhancement of Er^sup 3+^ emission at 1.54?µm in Er/Yb co-doped SiO^sub 2^-SnO^sub 2^ glass-ceramics
Published in Journal of alloys and compounds (15-08-2018)“…In this study, the Er3+ and Yb3+ ions are incorporated in SiO2-SnO2 glass-ceramics containing SnO2 crystals with the size of 5 nm. XRD and TEM results show…”
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Journal Article -
10
Investigating the effect of Yb3+ and Er3+ concentration on red/green luminescent ratio in β-NaYF4: Er, Yb nanocrystals using spectroscopic techniques
Published in Journal of molecular structure (15-06-2020)“…β-NaYF4 co-doped with Er3+ and Yb3+ ions were successfully synthesized at the reaction temperature as low as 180 °C by the two steps procedure using the…”
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Journal Article -
11
Luminescent Ink Based on Upconversion of NaYF 4 :Er,Yb@MA Nanoparticles: Environmental Friendly Synthesis and Structural and Spectroscopic Assessment
Published in Molecules (Basel, Switzerland) (17-02-2021)“…NaYF :Er,Yb upconversion luminescent nanoparticles (UCNPs) were prepared by hydrothermal methods at 180 °C for 24 h. The X-ray diffraction (XRD) and TEM…”
Get full text
Journal Article