Composite Yttrium-Carbonaceous Spheres Templated Multi-Shell YVO<sub>4</sub> Hollow Spheres with Superior Upconversion Photoluminescence.
basic_science · Level V
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- Record sourced from PubMed, PMID 28009457.
- Also identified by DOI 10.1002/adma.201604377.
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Abstract
Complex oxide YVO<sub>4</sub> multi-shell hollow spheres with uniform morphologies and controllable shell numbers are successfully prepared by using a newly developed and general composite yttrium-carbonaceous sphere templated approach. The prominent upconversion luminous intensity of the YVO<sub>4</sub> :Yb<sup>3+</sup> /Er<sup>3+</sup> hollow spheres might be attributed to the enhanced near-infrared excitation light harvesting efficiency originated from the multiple reflections.