Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 51 checked references that resolve
resolves10.1038/nnano.2014.29Engineering bright sub-10-nm upconverting nanocrystals for single-molecule imaging
resolves10.1021/nl3017994Combinatorial Discovery of Lanthanide-Doped Nanocrystals with Spectrally Pure Upconverted Emission
resolves10.1038/nmat3149Tuning upconversion through energy migration in core–shell nanoparticles
resolves10.1021/ja103743tNear-IR Photoresponse in New Up-Converting CdSe/NaYF<sub>4</sub>:Yb,Er Nanoheterostructures
resolves10.1002/anie.201208196Photon‐Upconverting Nanoparticles for Optical Encoding and Multiplexing of Cells, Biomolecules, and Microspheres
resolves10.1002/ange.201208196Photonen aufkonvertierende Nanopartikel zur optischen Codierung und zum Multiplexing von Zellen, Biomolekülen und Mikrosphären
resolves10.1002/adma.200901722Luminescence Modulation of Ordered Upconversion Nanopatterns by a Photochromic Diarylethene: Rewritable Optical Storage with Nondestructive Readout
resolves10.1021/cs300808rNIR-Responsive Photocatalytic Activity and Mechanism of NaYF<sub>4</sub>:Yb,Tm@TiO<sub>2</sub> Core–Shell Nanoparticles
resolves10.1016/j.solmat.2006.03.035Enhancing the performance of silicon solar cells via the application of passive luminescence conversion layers
resolves10.1002/smll.201200249Mechanism Studies on the Superior Optical Limiting Observed in Graphene Oxide Covalently Functionalized with Upconversion NaYF<sub>4</sub>:Yb<sup>3+</sup>/Er<sup>3+</sup> Nanoparticles
resolves10.1038/nm.2933In vivo photodynamic therapy using upconversion nanoparticles as remote-controlled nanotransducers
resolves10.1038/ncomms7938Single-band upconversion nanoprobes for multiplexed simultaneous in situ molecular mapping of cancer biomarkers
resolves10.1002/adma.201505020Thermal Scanning at the Cellular Level by an Optically Trapped Upconverting Fluorescent Particle
resolves10.1021/cr020357gUpconversion and Anti-Stokes Processes with f and d Ions in Solids
resolves10.1039/C4CS00187GAdvances in the theoretical understanding of photon upconversion in rare-earth activated nanophosphors
resolves10.1021/cm2004227Origin of the High Upconversion Green Luminescence Efficiency in β-NaYF<sub>4</sub>:2%Er<sup>3+</sup>,20%Yb<sup>3+</sup>
resolves10.1002/adma.200400772Highly Efficient Multicolour Upconversion Emission in Transparent Colloids of Lanthanide‐Doped NaYF<sub>4</sub> Nanocrystals
resolves10.1021/ja052583oBright White Light through Up-Conversion of a Single NIR Source from Sol−Gel-Derived Thin Film Made with Ln<sup>3+</sup>-Doped LaF<sub>3</sub> Nanoparticles
resolves10.1039/c3tc30654bCore–shell nanoarchitecture: a strategy to significantly enhance white-light upconversion of lanthanide-doped nanoparticles
resolves10.1002/adma.201000128A Strategy to Achieve Efficient Dual‐Mode Luminescence of Eu<sup>3+</sup> in Lanthanides Doped Multifunctional NaGdF<sub>4</sub> Nanocrystals
resolves10.1021/ja906732yUpconversion Luminescence of Monodisperse CaF<sub>2</sub>:Yb<sup>3+</sup>/Er<sup>3+</sup>Nanocrystals
resolves10.1021/ja4075002Mechanistic Investigation of Photon Upconversion in Nd<sup>3+</sup>-Sensitized Core–Shell Nanoparticles
resolves10.1021/jp8076479Bright White Upconversion Emission from Tm<sup>3+</sup>/Yb<sup>3+</sup>/Er<sup>3+</sup>-Doped Lu<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub> Nanocrystals
resolves10.1038/ncomms6669Photon energy upconversion through thermal radiation with the power efficiency reaching 16%
resolves10.1038/nmat3804Enhancing multiphoton upconversion through energy clustering at sublattice level
resolves10.1021/nl400807mUltrasensitive Polarized Up-Conversion of Tm<sup>3+</sup>–Yb<sup>3+</sup> Doped β-NaYF<sub>4</sub> Single Nanorod
resolves10.1002/adma.201304903Elimination of Photon Quenching by a Transition Layer to Fabricate a Quenching‐Shield Sandwich Structure for 800 nm Excited Upconversion Luminescence of Nd<sup>3+</sup>‐Sensitized Nanoparticles
resolves10.1002/adma.201503482Photon Upconversion Through Tb<sup>3+</sup>‐Mediated Interfacial Energy Transfer
resolves10.1002/anie.201510609Filtration Shell Mediated Power Density Independent Orthogonal Excitations–Emissions Upconversion Luminescence
resolves10.1002/ange.201510609Filtration Shell Mediated Power Density Independent Orthogonal Excitations–Emissions Upconversion Luminescence
resolves10.1002/adma.200803228Dual‐Mode Luminescent Colloidal Spheres from Monodisperse Rare‐Earth Fluoride Nanocrystals
resolves10.1364/OE.14.011412White light emissions through down-conversion of rare-earth doped LaF<sub>3</sub>nanoparticles
resolves10.1021/cm052360xA Facile Synthesis and Photoluminescent Properties of Redispersible CeF<sub>3</sub>, CeF<sub>3</sub>:Tb<sup>3+</sup>, and CeF<sub>3</sub>:Tb<sup>3+</sup>/LaF<sub>3</sub> (Core/Shell) Nanoparticles
resolves10.1039/c3nr02591hHighly bright multicolor tunable ultrasmall β-Na(Y,Gd)F4:Ce,Tb,Eu/β-NaYF4 core/shell nanocrystals
resolves10.1021/cm061887mControlled Synthesis and Luminescence of Lanthanide Doped NaYF<sub>4</sub> Nanocrystals
resolves10.1002/adfm.200800765Combined Optical and MR Bioimaging Using Rare Earth Ion Doped NaYF<sub>4</sub> Nanocrystals
resolves10.1103/PhysRevB.56.14344Determination of microscopic parameters for nonresonant energy-transfer processes in rare-earth-doped crystals
resolves10.1063/1.1739523Significance of Yb3+ concentration on the upconversion mechanisms in codoped Y2O3:Er3+, Yb3+ nanocrystals
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