Synthesis of Hexagonal-Phase Core−Shell NaYF4 Nanocrystals with Tunable Upconversion Fluorescence
- 8 October 2008
- journal article
- research article
- Published by American Chemical Society (ACS) in Langmuir
- Vol. 24 (21), 12123-12125
- https://doi.org/10.1021/la802343f
Abstract
Hexagonal-phase core−shell-structured NaYF4:Yb,Tm@β-NaYF4:Yb,Er and β-NaYF4:Yb,Tm@β-NaYF4:Yb,Er@β-NaYF4:Yb,Tm nanocrystals were synthesized by a seeded growth approach. β-NaYF4:Yb,Tm nanocrystals with 20 nm diameter were used as seed crystals to induce the growth of β-NaYF4:Yb,Er and then β-NaYF4:Yb,Tm crystals, resulting in the formation of core−shell-structured nanocrystals with upconverting lanthanide ions Tm and Er doped in the core and shell, respectively.This publication has 44 references indexed in Scilit:
- Synthesis of monodisperse hexagonal NaYF4:Yb, Ln (Ln = Er, Ho and Tm) upconversion nanocrystals in TOPONanotechnology, 2007
- Tiny seeds make a big differenceNature Materials, 2007
- Water-Soluble NaYF4:Yb,Er(Tm)/NaYF4/Polymer Core/Shell/Shell Nanoparticles with Significant Enhancement of Upconversion FluorescenceChemistry of Materials, 2006
- Synthesis of complex rare earth fluoride nanocrystal phosphorsNanotechnology, 2006
- Synthesis of Colloidal Upconverting NaYF4 Nanocrystals Doped with Er3+, Yb3+ and Tm3+, Yb3+ via Thermal Decomposition of Lanthanide Trifluoroacetate PrecursorsJournal of the American Chemical Society, 2006
- Fluorescence Resonant Energy Transfer Biosensor Based on Upconversion‐Luminescent NanoparticlesAngewandte Chemie-International Edition, 2005
- Novel materials doped with trivalent lanthanides and transition metal ions showing near-infrared to visible photon upconversionOptical Materials, 2005
- Highly Efficient Multicolour Upconversion Emission in Transparent Colloids of Lanthanide‐Doped NaYF4 NanocrystalsAdvanced Materials, 2004
- Synthesis, Characterization, and Biological Application of Size-Controlled Nanocrystalline NaYF4:Yb,Er Infrared-to-Visible Up-Conversion PhosphorsNano Letters, 2004
- Epitaxial Growth of Highly Luminescent CdSe/CdS Core/Shell Nanocrystals with Photostability and Electronic AccessibilityJournal of the American Chemical Society, 1997