Ultrathin Europium Oxide Nanoplatelets: “Hidden” Parameters and Controlled Synthesis, Unusual Crystal Structure, and Photoluminescence Properties

A good understanding of the relationship between the atomic scale structure of ultrasmall europium oxide nanocrystals (NCs) and their photoluminescence properties is of major interest in the design and development of innovative europium-based nanophosphors. As a consequence, the preparation of reliable (controlled size and shape distributions) and structurally well characterized ultrasmall europium oxide NCs is an essential prerequisite to understand the size effects on their photoluminescence properties. First, we reveal that nonaqueous approaches used to synthesize ultrasmall europium oxide NCs are deeply affected by “hidden” parameters that are directly related to the preparation of the reactive mixture. Indeed, trace amounts of products of side reactions and byproducts, such as acetic acid and water, act as growth-directing agents. Second, the challenging problem related to the structural characterization of ultrasmall europium oxide NCs is addressed for the first time by coupling high-resolution tran...

[1]  C. Kübel,et al.  Ultra-small plutonium oxide nanocrystals: an innovative material in plutonium science. , 2014, Chemistry.

[2]  Jun Lin,et al.  Recent progress in rare earth micro/nanocrystals: soft chemical synthesis, luminescent properties, and biomedical applications. , 2014, Chemical reviews.

[3]  C. Summers,et al.  Synthesis Protocols for δ-Doped NaYF4:Yb,Er , 2014 .

[4]  Hai Zhu,et al.  Upconverting near-infrared light through energy management in core-shell-shell nanoparticles. , 2013, Angewandte Chemie.

[5]  Richard A. Loomis,et al.  Excitation Energy Dependence of the Photoluminescence Quantum Yields of Core and Core/Shell Quantum Dots. , 2013, The journal of physical chemistry letters.

[6]  Marcel Miglierini,et al.  Bulk metallic glass-like scattering signal in small metallic nanoparticles. , 2013, ACS nano.

[7]  James R. McBride,et al.  Confirmation of disordered structure of ultrasmall CdSe nanoparticles from X-ray atomic pair distribution function analysis. , 2013, Physical chemistry chemical physics : PCCP.

[8]  C. Kübel,et al.  Controlled synthesis of thorium and uranium oxide nanocrystals. , 2013, Chemistry.

[9]  Hongseok Yun,et al.  Designing tripodal and triangular gadolinium oxide nanoplates and self-assembled nanofibrils as potential multimodal bioimaging probes. , 2013, ACS nano.

[10]  S. Mourdikoudis,et al.  Oleylamine in Nanoparticle Synthesis , 2013 .

[11]  Paras N. Prasad,et al.  Nanophotonics and nanochemistry: controlling the excitation dynamics for frequency up- and down-conversion in lanthanide-doped nanoparticles. , 2013, Accounts of chemical research.

[12]  J. M. de la Fuente,et al.  Synthesis and properties of multifunctional tetragonal Eu:GdPO4 nanocubes for optical and magnetic resonance imaging applications. , 2013, Inorganic chemistry.

[13]  D. Zhao,et al.  Successive Layer-by-Layer Strategy for Multi-Shell Epitaxial Growth: Shell Thickness and Doping Position Dependence in Upconverting Optical Properties , 2013 .

[14]  Ru‐Shi Liu,et al.  The effect of surface coating on energy migration-mediated upconversion. , 2012, Journal of the American Chemical Society.

[15]  M. R. Kim,et al.  Influence of chloride ions on the synthesis of colloidal branched CdSe/CdS nanocrystals by seeded growth. , 2012, ACS nano.

[16]  S. Carenco,et al.  Revisiting the molecular roots of a ubiquitously successful synthesis: nickel(0) nanoparticles by reduction of [Ni(acetylacetonate)2]. , 2012, Chemistry.

[17]  S. Sharma,et al.  Eu3+/Tb3+-codoped Y2O3 nanophosphors: Rietveld refinement, bandgap and photoluminescence optimization , 2012 .

[18]  C. Cheon,et al.  Luminescence enhancement by the reduction-oxidation synthesis in monoclinic RE2O3 (RE=Eu, Gd) phosphors containing Eu3+ activator , 2012 .

[19]  C. Kübel,et al.  Non-aqueous synthesis of isotropic and anisotropic actinide oxide nanocrystals. , 2012, Chemistry.

[20]  Wei Li,et al.  Direct imaging the upconversion nanocrystal core/shell structure at the subnanometer level: shell thickness dependence in upconverting optical properties. , 2012, Nano letters.

[21]  P. Fornasiero,et al.  Nonaqueous synthesis of TiO2 nanocrystals using TiF4 to engineer morphology, oxygen vacancy concentration, and photocatalytic activity. , 2012, Journal of the American Chemical Society.

[22]  V. Colvin,et al.  High Temperature Decomposition of Cerium Precursors To Form Ceria Nanocrystal Libraries for Biological Applications , 2012 .

[23]  Yongmin Chang,et al.  Water-soluble ultrasmall Eu2O3 nanoparticles as a fluorescent imaging agent: In vitro and in vivo studies , 2012 .

[24]  Renren Deng,et al.  Tuning upconversion through energy migration in core-shell nanoparticles. , 2011, Nature materials.

[25]  T. Hyeon,et al.  Formation mechanisms of uniform nanocrystals via hot-injection and heat-up methods. , 2011, Small.

[26]  S. Banerjee,et al.  Shape-controlled synthesis of well-defined matlockite LnOCl (Ln: La, Ce, Gd, Dy) nanocrystals by a novel non-hydrolytic approach. , 2011, Inorganic chemistry.

[27]  R. Gorte,et al.  Synthesis and oxygen storage capacity of two-dimensional ceria nanocrystals. , 2011, Angewandte Chemie.

[28]  Yan Zhang,et al.  Single-Phase Dy2O3:Tb3+ Nanocrystals as Dual-Modal Contrast Agent for High Field Magnetic Resonance and Optical Imaging , 2011 .

[29]  Jun Chen,et al.  Morphologically controlled synthesis of colloidal upconversion nanophosphors and their shape-directed self-assembly , 2010, Proceedings of the National Academy of Sciences.

[30]  S. Gierlotka,et al.  Nanocrystals: Breaking limitations of data analysis , 2010 .

[31]  S. Billinge.  The nanostructure problem , 2010 .

[32]  A. Whiting,et al.  The thermal and boron-catalysed direct amide formation reactions: mechanistically understudied yet important processes. , 2010, Chemical communications.

[33]  J. Loo,et al.  Gadolinium oxide ultranarrow nanorods as multimodal contrast agents for optical and magnetic resonance imaging. , 2010, Langmuir : the ACS journal of surfaces and colloids.

[34]  Bipin Kumar Gupta,et al.  Synthesis and characterization of ultra-fine Y2O3:Eu3+ nanophosphors for luminescent security ink applications , 2010, Nanotechnology.

[35]  Chun-Hua Yan,et al.  Highly luminescent self-organized sub-2-nm EuOF nanowires. , 2009, Journal of the American Chemical Society.

[36]  Xiaogang Liu,et al.  Recent advances in the chemistry of lanthanide-doped upconversion nanocrystals. , 2009, Chemical Society reviews.

[37]  Xiaofeng Zhang,et al.  Self-organized ultrathin oxide nanocrystals. , 2009, Nano letters.

[38]  Liang Li,et al.  Core/Shell semiconductor nanocrystals. , 2009, Small.

[39]  Chenghui Liu,et al.  Morphology- and phase-controlled synthesis of monodisperse lanthanide-doped NaGdF4nanocrystals with multicolor photoluminescence , 2009 .

[40]  V. Petkov.  Nanostructure by high- energy X-ray diffraction , 2008 .

[41]  S. Billinge.  Nanoscale structural order from the atomic pair distribution function (PDF): There's plenty of room in the middle , 2008 .

[42]  S. V. Mahajan,et al.  Synthesis of monodisperse sub-3 nm RE2O3 and Gd2O3:RE3+ nanocrystals , 2007 .

[43]  Taeghwan Hyeon,et al.  Synthesis of monodisperse spherical nanocrystals. , 2007, Angewandte Chemie.

[44]  Simon J L Billinge,et al.  The Problem with Determining Atomic Structure at the Nanoscale , 2007, Science.

[45]  Chunhua Yan,et al.  From trifluoroacetate complex precursors to monodisperse rare-earth fluoride and oxyfluoride nanocrystals with diverse shapes through controlled fluorination in solution phase. , 2007, Chemistry.

[46]  M. S. El-shall,et al.  Microwave Synthesis and Optical Properties of Uniform Nanorods and Nanoplates of Rare Earth Oxides , 2007 .

[47]  Yongan Yang,et al.  Synthesis of colloidal uranium-dioxide nanocrystals. , 2006, Journal of the American Chemical Society.

[48]  M. Godlewski,et al.  Optical characterization of eu-doped and undoped gd(2)o(3) nanoparticles synthesized by the hydrogen flame pyrolysis method. , 2006, Journal of the American Chemical Society.

[49]  R. Koole,et al.  The hidden role of acetate in the PbSe nanocrystal synthesis. , 2006, Journal of the American Chemical Society.

[50]  T. Hyeon,et al.  Single unit cell thick samaria nanowires and nanoplates. , 2006, Journal of the American Chemical Society.

[51]  Hiroyuki Nakamura,et al.  Synthesis of Well‐Dispersed Y2O3:Eu Nanocrystals and Self‐Assembled Nanodisks Using a Simple Non‐hydrolytic Route , 2005 .

[52]  M. Han,et al.  Aminolysis route to monodisperse titania nanorods with tunable aspect ratio. , 2005, Angewandte Chemie.

[53]  Ya-Wen Zhang,et al.  Rare-earth oxide nanopolyhedra, nanoplates, and nanodisks. , 2005, Angewandte Chemie.

[54]  Martinus H V Werts,et al.  Making sense of Lanthanide Luminescence , 2005, Science progress.

[55]  Taeghwan Hyeon,et al.  Ultra-large-scale syntheses of monodisperse nanocrystals , 2004, Nature materials.

[56]  Xiaogang Peng,et al.  High Quality ZnSe and ZnS Nanocrystals Formed by Activating Zinc Carboxylate Precursors , 2004 .

[57]  M. Antonietti,et al.  Synthesis of yttria-based crystalline and lamellar nanostructures and their formation mechanism. , 2004, Small.

[58]  Y. C. Cao,et al.  Synthesis of square gadolinium-oxide nanoplates. , 2004, Journal of the American Chemical Society.

[59]  O Tillement,et al.  Synthesis and properties of europium-based phosphors on the nanometer scale: Eu2O3, Gd2O3:Eu, and Y2O3:Eu. , 2004, Journal of colloid and interface science.

[60]  Simon J L Billinge,et al.  Beyond crystallography: the study of disorder, nanocrystallinity and crystallographically challenged materials with pair distribution functions. , 2004, Chemical communications.

[61]  Hao Zeng,et al.  Monodisperse MFe2O4 (M = Fe, Co, Mn) nanoparticles. , 2004, Journal of the American Chemical Society.

[62]  Alain Brenier,et al.  Synthesis and luminescent properties of sub-5-nm lanthanide oxides nanoparticles , 2003 .

[63]  Takeshi Egami,et al.  Structural analysis of complex materials using the atomic pair distribution function — a practical guide , 2003 .

[64]  Christopher B. Murray,et al.  Synthesis and Characterization of Monodisperse Nanocrystals and Close-Packed Nanocrystal Assemblies , 2000 .

[65]  Wakefield,et al.  Synthesis and Properties of Sub-50-nm Europium Oxide Nanoparticles. , 1999, Journal of colloid and interface science.

[66]  M. Bawendi,et al.  Synthesis and characterization of nearly monodisperse CdE (E = sulfur, selenium, tellurium) semiconductor nanocrystallites , 1993 .

[67]  C. Kübel,et al.  Thorium/uranium mixed oxide nanocrystals: Synthesis, structural characterization and magnetic properties , 2013, Nano Research.

[68]  Ya‐Wen Zhang,et al.  Controlled-Synthesis, Self-Assembly Behavior, and Surface-Dependent Optical Properties of High-Quality Rare-Earth Oxide Nanocrystals , 2007 .