Results 51 to 60 of about 17,954 (209)

Synergistic Ligand Engineering Suppresses Dye Aggregation Quenching and Photobleaching in Lanthanide Upconversion Nanoparticles

Aggregate
Near‐infrared cyanine dyes are widely employed for sensitizing lanthanide upconversion luminescence (UCL), but generally suffer from aggregation‐caused quenching (ACQ) and photobleaching. Herein, we report a ligand engineering strategy utilizing pyridine‐
Shiqi Yu, Datao Tu, Fei Zhao, Fei Du, Yun Xing, Qingyan Liu, Xiaoying Shang, Renfu Li, Zhi Xie, Qian Liu, Xueyuan Chen   +10 more
doaj   +1 more source

Open questions on bonding involving lanthanide atoms

Communications Chemistry, 2022
In-depth understanding of the bonding characteristics of the lanthanide ions in contemporary lanthanide-based materials is mandatory for tailoring their properties for novel applications.
T. Vitova, P. W. Roesky, S. Dehnen
doaj   +1 more source

Scalable Production of Disordered Nickel‐Iron‐Aluminum Oxides as Stable Anodes for Water Electrolysis: The Role of Aluminum

Advanced Materials Interfaces, EarlyView.
Solution precursor plasma spraying enables the scalable fabrication of porous and disordered nickel‐iron‐aluminum oxide coatings as precious‐metal‐free anodes. Aluminum inhibits crystal growth, optimizes local atomic sites, and enhances charge and ion transport to accelerate reaction kinetics, leading to excellent performance and operational stability.
Tugce Ustunel, Joakim Bäckström, Esdras J. Canto‐Aguilar, Mouna Rafei, Litty Thomas Manamel, Mahesh Ramakrishnan, Konstantin Klementiev, Nina Grunditz, Erik Zimmerman, Thomas Wågberg, Susanne Holmin, Eduardo Gracia‐Espino   +11 more
wiley   +1 more source

Recent Advances in Luminescence Imaging of Biological Systems Using Lanthanide(III) Luminescent Complexes

Molecules, 2020
The use of luminescence in biological systems allows one to diagnose diseases and understand cellular processes. Molecular systems, particularly lanthanide(III) complexes, have emerged as an attractive system for application in cellular luminescence ...
Jorge H. S. K. Monteiro
doaj   +1 more source

Aberrations‐Corrected Ratiometric Parameters and PLQYs for Upconversion Thermometry in Hexagonal NaYF4:Yb3+,Er3+ and NaYF4:Yb3+,Tm3+ in Micro and Nanoscale Phosphors Using Novel Integrating Sphere Setup

Advanced Optical Materials, EarlyView.
Each optical system introduces aberrations in the reading of photoluminescence, which makes the signal dependant on the lab equipment. Here, a calibrated system is used to obtain the PLQYs and ratiometric parameters of popular upconverters to be used in thermometry.
Adilet Zhakeyev, Feng Li, Daniel Biner, Karl W. Krämer, Guanying Chen, Jose Marques‐Hueso   +5 more
wiley   +1 more source

One-Pot Solvothermal Synthesis of Highly Emissive, Sodium-Codoped, LaF3 and BaLaF5 Core-Shell Upconverting Nanocrystals

Nanomaterials, 2014
We report a one-pot solvothermal synthesis of sub-10 nm, dominant ultraviolet (UV) emissive upconverting nanocrystals (UCNCs), based on sodium-codoped LaF3 and BaLaF5 (0.5%Tm; 20%Yb) and their corresponding core@shell derivatives.
Joshua T. Stecher, Anne B. Rohlfing, Michael J. Therien   +2 more
doaj   +1 more source

Thermodynamics of Concomitant Charge‐Transfer, Antiferromagnetic, and Isostructural Phase Transitions in Barocaloric ACu3Fe4O12 Quadruple Perovskites

Advanced Science, EarlyView.
A copper‐iron charge transfer instability drives concomitant electronic, magnetic, and isostructural phase transitions in ACu3Fe4O12${\rm ACu}_3{\rm Fe}_4{\rm O}_{12}$, with an inverse barocaloric effect. A minimal Landau theory ties these thermodynamic signatures together, revealing a pressure‐independent transition entropy with comparable charge and ...
Jefferson Delgado‐Quesada, Gian Giacomo Guzmán‐Verri   +1 more
wiley   +1 more source

Weathered granites and soils harbour microbes with lanthanide-dependent methylotrophic enzymes

BMC Biology
Background Prior to soil formation, phosphate liberated by rock weathering is often sequestered into highly insoluble lanthanide phosphate minerals. Dissolution of these minerals releases phosphate and lanthanides to the biosphere.
Marcos Y. Voutsinos, Jacob A. West-Roberts, Rohan Sachdeva, John W. Moreau, Jillian F. Banfield   +4 more
doaj   +1 more source

Crystal structures of two mononuclear complexes of terbium(III) nitrate with the tripodal alcohol 1,1,1-tris(hydroxymethyl)propane

Acta Crystallographica Section E: Crystallographic Communications, 2017
Two new mononuclear cationic complexes in which the TbIII ion is bis-chelated by the tripodal alcohol 1,1,1-tris(hydroxymethyl)propane (H3LEt, C6H14O3) were prepared from Tb(NO3)3·5H2O and had their crystal and molecular structures solved by single ...
Thaiane Gregório, Siddhartha O. K. Giese, Giovana G. Nunes, Jaísa F. Soares, David L. Hughes   +4 more
doaj   +1 more source

High‐Entropy Engineering and External Magnetic Field Modulation Synergistically Enhance the H2S Sensing Performance of Rare‐Earth Perovskite Ferrites

Advanced Science, EarlyView.
A novel high‐entropy perovskite oxide, (Gd0.2Tb0.2Dy0.2Ho0.2Er0.2)FeO3, was successfully synthesized for advanced hydrogen sulfide gas detection. By synergistically coupling high‐entropy‐induced local lattice distortion with weak magnetic field modulation, the tailored material generates abundant active sites. This innovative dual strategy dramatically
Yunfei Wang, Min Zhang, Rui Li, Xiaolong Yao, Zhaofeng Wu, Fengdong Qu, Shan Qiu, Zhenjiang Li   +7 more
wiley   +1 more source