Synthesis of Colloidal Upconverting NaYF<sub>4</sub> Nanocrystals Doped with Er<sup>3+</sup>, Yb<sup>3+</sup> and Tm<sup>3+</sup>, Yb<sup>3+</sup> via Thermal Decomposition of Lanthanide Trifluoroacetate PrecursorsJohn‐Christopher Boyer, John A. Capobianco, Fiorenzo Vetrone et al.|Journal of the American Chemical Society|2006Cited by 1k
Absolute quantum yield measurements of colloidal NaYF4: Er3+, Yb3+ upconverting nanoparticlesJohn‐Christopher Boyer, Frank C. J. M. van Veggel|Nanoscale|2010Cited by 860
Significance of Yb3+ concentration on the upconversion mechanisms in codoped Y2O3:Er3+, Yb3+ nanocrystalsFiorenzo Vetrone, Marco Bettinelli, John‐Christopher Boyer et al.|Journal of Applied Physics|2004Cited by 561
Surface Modification of Upconverting NaYF<sub>4</sub> Nanoparticles with PEG−Phosphate Ligands for NIR (800 nm) Biolabeling within the Biological WindowJohn‐Christopher Boyer, Frank C. J. M. van Veggel, Marie-Pascale Manseau et al.|Langmuir|2009Cited by 436
Concentration-Dependent Near-Infrared to Visible Upconversion in Nanocrystalline and Bulk Y<sub>2</sub>O<sub>3</sub>:Er<sup>3+</sup>Fiorenzo Vetrone, Marco Bettinelli, John‐Christopher Boyer et al.|Chemistry of Materials|2003Cited by 302