Power-dependent upconversion quantum yield of NaYF4:Yb3+,Er3+ nano- and micrometer-sized particles – measurements and simulations

Excitation power dependent population pathways and absolute quantum yields of upconversion nanoparticles in different solvents

(2017) C. Würth et al.   Nanoscale

Dye-Sensitized Core/Active Shell Upconversion Nanoparticles for Optogenetics and Bioimaging Applications

(2016) Xiang Wu et al.   ACS Nano

Sensitivity of a Nanocrystalline Luminescent Thermometer in High and Low Excitation Density Regimes

(2016) Lukasz Marciniak et al.   Journal of Physical Chemistry C

Precise Tuning of Surface Quenching for Luminescence Enhancement in Core–Shell Lanthanide-Doped Nanocrystals

(2016) Stefan Fischer et al.   NANO LETTERS

Lanthanide-doped upconversion nano-bioprobes: electronic structures, optical properties, and biodetection

(2015) Wei Zheng et al.   CHEMICAL SOCIETY REVIEWS

Photon upconversion nanomaterials

(2015) Xiaogang Liu et al.   CHEMICAL SOCIETY REVIEWS

Disputed Mechanism for NIR-to-Red Upconversion Luminescence in NaYF4:Yb3+,Er3+

(2015) Mary T. Berry et al.   JOURNAL OF PHYSICAL CHEMISTRY A

Quenching of the upconversion luminescence of NaYF4:Yb3+,Er3+and NaYF4:Yb3+,Tm3+nanophosphors by water: the role of the sensitizer Yb3+in non-radiative relaxation

(2015) Riikka Arppe et al.   Nanoscale

The preferred upconversion pathway for the red emission of lanthanide-doped upconverting nanoparticles, NaYF4:Yb3+,Er3+

(2015) Taeyoung Jung et al.   PHYSICAL CHEMISTRY CHEMICAL PHYSICS

Upconversion for Photovoltaics - a Review of Materials, Devices and Concepts for Performance Enhancement

(2015) Jan Christoph Goldschmidt et al.   Advanced Optical Materials

Upconversion: Tunable Near Infrared to Ultraviolet Upconversion Luminescence Enhancement in (α-NaYF4:Yb,Tm)/CaF2Core/Shell Nanoparticles for In situ Real-time Recorded Biocompatible Photoactivation (Small 19/2013)

(2015) Jie Shen et al.   Small

Plasmon-Enhanced Upconversion Luminescence in Single Nanophosphor–Nanorod Heterodimers Formed through Template-Assisted Self-Assembly

(2014) Nicholas J. Greybush et al.   ACS Nano

Critical review of the determination of photoluminescence quantum yields of luminescent reporters

(2014) C. Würth et al.   ANALYTICAL AND BIOANALYTICAL CHEMISTRY

Upconversion Nanoparticles: A Versatile Solution to Multiscale Biological Imaging

(2014) Xiang Wu et al.   BIOCONJUGATE CHEMISTRY

Cross Relaxation Induced Pure Red Upconversion in Activator- and Sensitizer-Rich Lanthanide Nanoparticles

(2014) Wei Wei et al.   CHEMISTRY OF MATERIALS

Upconversion quantum yield of Er3+-doped β-NaYF4 and Gd2O2S: The effects of host lattice, Er3+ doping, and excitation spectrum bandwidth

(2014) Stefan Fischer et al.   JOURNAL OF LUMINESCENCE

Engineering Homogeneous Doping in Single Nanoparticle To Enhance Upconversion Efficiency

(2014) Xiaomin Li et al.   NANO LETTERS

Red-green-blue printing using luminescence-upconversion inks

(2014) Jeevan Manikyarao Meruga et al.   Journal of Materials Chemistry C

Photon-Upconverting Nanoparticles for Optical Encoding and Multiplexing of Cells, Biomolecules, and Microspheres

(2013) Hans H. Gorris et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Recent Progress in Rare Earth Micro/Nanocrystals: Soft Chemical Synthesis, Luminescent Properties, and Biomedical Applications

(2013) Shili Gai et al.   CHEMICAL REVIEWS

Upconversion photoluminescence enhancement and modulation of NaYF4:Yb, Er through using different ligands

(2013) Suli Wu et al.   JOURNAL OF LUMINESCENCE

Revisiting the NIR-to-Visible Upconversion Mechanism in β-NaYF4:Yb3+,Er3+

(2013) Robert B. Anderson et al.   Journal of Physical Chemistry Letters

Upconverting nanoparticles for pre-clinical diffuse optical imaging, microscopy and sensing: Current trends and future challenges

(2013) Can T. Xu et al.   Laser & Photonics Reviews

High upconversion quantum yield at low pump threshold in Er3+/Yb3+ doped La2O2S phosphor

(2013) Madhab Pokhrel et al.   MATERIALS LETTERS

Balancing power density based quantum yield characterization of upconverting nanoparticles for arbitrary excitation intensities

(2013) Haichun Liu et al.   Nanoscale

Relative and absolute determination of fluorescence quantum yields of transparent samples

(2013) Christian Würth et al.   Nature Protocols

Quantitative Imaging of Single Upconversion Nanoparticles in Biological Tissue

(2013) Annemarie Nadort et al.   PLoS One

Highly efficient NIR to NIR and VIS upconversion in Er3+ and Yb3+ doped in M2O2S (M = Gd, La, Y)

(2013) M. Pokhrel et al.   Journal of Materials Chemistry A

High-Resolution Fluorescence Diffuse Optical Tomography Developed with Nonlinear Upconverting Nanoparticles

(2012) Can T. Xu et al.   ACS Nano

Metal-Enhanced Upconversion Luminescence Tunable through Metal Nanoparticle–Nanophosphor Separation

(2012) Marjan Saboktakin et al.   ACS Nano

(α-NaYbF4:Tm3+)/CaF2 Core/Shell Nanoparticles with Efficient Near-Infrared to Near-Infrared Upconversion for High-Contrast Deep Tissue Bioimaging

(2012) Guanying Chen et al.   ACS Nano

Quantitative Multianalyte Microarray Immunoassay Utilizing Upconverting Phosphor Technology

(2012) Henna Päkkilä et al.   ANALYTICAL CHEMISTRY

Lanthanide-doped up-converting nanoparticles: Merits and challenges

(2012) Anna Gnach et al.   Nano Today

Probing the “Dark” Fraction of Core–Shell Quantum Dots by Ensemble and Single Particle pH-Dependent Spectroscopy

(2011) Nela Durisic et al.   ACS Nano

Intense Visible and Near-Infrared Upconversion Photoluminescence in Colloidal LiYF4:Er3+ Nanocrystals under Excitation at 1490 nm

(2011) Guanying Chen et al.   ACS Nano

Comparison of Methods and Achievable Uncertainties for the Relative and Absolute Measurement of Photoluminescence Quantum Yields

(2011) Christian Würth et al.   ANALYTICAL CHEMISTRY

Integrating Sphere Setup for the Traceable Measurement of Absolute Photoluminescence Quantum Yields in the Near Infrared

(2011) Christian Würth et al.   ANALYTICAL CHEMISTRY

Upconverting Nanoparticles

(2011) Markus Haase et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Control of green and red upconversion in NaYF4:Yb3+,Er3+ nanoparticles by excitation modulation

(2011) Christian F. Gainer et al.   JOURNAL OF MATERIALS CHEMISTRY

Sub-10 nm Hexagonal Lanthanide-Doped NaLuF4Upconversion Nanocrystals for Sensitive Bioimaging in Vivo

(2011) Qian Liu et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Absolute quantum yield measurements of colloidal NaYF4: Er3+, Yb3+ upconverting nanoparticles

(2010) John-Christopher Boyer et al.   Nanoscale

Simultaneous phase and size control of upconversion nanocrystals through lanthanide doping

(2010) Feng Wang et al.   NATURE

Cathodo- and photoluminescence in Yb^3+-Er^3+ co-doped PbF_2 nanoparticles

(2010) V. K. Tikhomirov et al.   OPTICS EXPRESS