Synthesis of colour tunable lanthanide-ion doped NaYF4 upconversion nanoparticles by controlling temperature

Synthesis of colour tunable lanthanide-ion doped NaYF4 upconversion nanoparticles by controlling temperature: "

Wenbin Niu, Suli Wu, Shufen Zhang, Lian Li

(Communication from Chem. Commun.)

Wenbin Niu, Chem. Commun., 2010, DOI: 10.1039/c002615h

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Shaping Gold Nanocomposites with Tunable Optical Properties

Shaping Gold Nanocomposites with Tunable Optical Properties: "Langmuir, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Influence of the TGA Modification on Upconversion Luminescence of Hexagonal-Phase NaYF4:Yb3+, Er3+ Nanoparticles

Influence of the TGA Modification on Upconversion Luminescence of Hexagonal-Phase NaYF4:Yb3+, Er3+ Nanoparticles: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Controllable Synthesis of TiO2 Single Crystals with Tunable Shapes Using Ammonium-Exchanged Titanate Nanowires as Precursors

Controllable Synthesis of TiO2 Single Crystals with Tunable Shapes Using Ammonium-Exchanged Titanate Nanowires as Precursors: "Crystal Growth & Design, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

High magnetization aqueous ferrofluid: A simple one-pot synthesis

High magnetization aqueous ferrofluid: A simple one-pot synthesis: "Kyler J. Carroll, Michael D. Shultz, Panos P. Fatouros, and Everett E. Carpenter
A one-step polyol method was utilized to prepare a stable aqueous iron/iron oxide ferrofluid. The dried powders were characterized by x-ray diffraction, electron microscopy, x-ray absorption spectroscopy, and vibrating sample magnetometry for the determination of phase, morphology, and magnetic prop ... [J. Appl. Phys. 107, 09B304 (2010)] published Tue Apr 20, 2010."

Growth of ZnO Nanostructures with Controllable Morphology Using a Facile Green Antisolvent Method

Growth of ZnO Nanostructures with Controllable Morphology Using a Facile Green Antisolvent Method: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

One-Pot Protocol for Au-Based Hybrid Magnetic Nanostructures via a Noble-Metal-Induced Reduction Process

One-Pot Protocol for Au-Based Hybrid Magnetic Nanostructures via a Noble-Metal-Induced Reduction Process: "Journal of the American Chemical Society, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Hydrothermal Synthesis of Monoclinic VO2 Micro- and Nanocrystals in One Step and Their Use in Fabricating Inverse Opals

Hydrothermal Synthesis of Monoclinic VO2 Micro- and Nanocrystals in One Step and Their Use in Fabricating Inverse Opals: "Chemistry of Materials, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Shape-Controlled Fabrication of Micro/Nanoscale Triangle, Square, Wire-like, and Hexagon Pits on Silicon Substrates Induced by Anisotropic Diffusion and Silicide Sublimation

Shape-Controlled Fabrication of Micro/Nanoscale Triangle, Square, Wire-like, and Hexagon Pits on Silicon Substrates Induced by Anisotropic Diffusion and Silicide Sublimation: "ACS Nano, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Interactions of Fluorophores with Iron Nanoparticles: Metal-Enhanced Fluorescence

Interactions of Fluorophores with Iron Nanoparticles: Metal-Enhanced Fluorescence: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Ag-Coated Fe3O4@SiO2 Three-Ply Composite Microspheres: Synthesis, Characterization, and Application in Detecting Melamine with Their Surface-Enhanced Raman Scattering

Ag-Coated Fe3O4@SiO2 Three-Ply Composite Microspheres: Synthesis, Characterization, and Application in Detecting Melamine with Their Surface-Enhanced Raman Scattering: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Surface Plasmons Control the Dynamics of Excited Triplet States in the Presence of Gold Nanoparticles

Surface Plasmons Control the Dynamics of Excited Triplet States in the Presence of Gold Nanoparticles: "Journal of the American Chemical Society, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Growth Mechanism of Anisotropic Gold Nanocrystals via Microwave Synthesis: Formation of Dioleamide by Gold Nanocatalysis

Growth Mechanism of Anisotropic Gold Nanocrystals via Microwave Synthesis: Formation of Dioleamide by Gold Nanocatalysis: "ACS Nano, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Design of AgM Bimetallic Alloy Nanostructures (M = Au, Pd, Pt) with Tunable Morphology and Peroxidase-Like Activity

Design of AgM Bimetallic Alloy Nanostructures (M = Au, Pd, Pt) with Tunable Morphology and Peroxidase-Like Activity: "Chemistry of Materials, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Liquid-Phase Synthesis of Uniform Cube-Shaped GeTe Microcrystals

Liquid-Phase Synthesis of Uniform Cube-Shaped GeTe Microcrystals: "Chemistry of Materials, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Nucleation Control of Size and Dispersity in Aggregative Nanoparticle Growth. A Study of the Coarsening Kinetics of Thiolate-Capped Gold Nanocrystals

Nucleation Control of Size and Dispersity in Aggregative Nanoparticle Growth. A Study of the Coarsening Kinetics of Thiolate-Capped Gold Nanocrystals: "Chemistry of Materials, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

CdSe Quantum Rod Formation Aided By In Situ TOPO Oxidation

CdSe Quantum Rod Formation Aided By In Situ TOPO Oxidation: "Chemistry of Materials, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Green luminescent ZnO:Cu2+ nanoparticles for their applications in white-light generation from UV LEDs

Green luminescent ZnO:Cu2+ nanoparticles for their applications in white-light generation from UV LEDs: "

Abstract  

Copper doped ZnO nanoparticles were synthesized by a chemical technique based on a hydrothermal method. The crystallite sizes,
estimated by XRD and TEM/SEM for different doping percentage of Cu²⁺ (1–10%), were found to be in the range of ~10–15 nm. TEM/SEM images showed formation of uniform nanorods, the aspect ratio
of which varied with doping percentage. Photoluminescence (PL) measurement showed strong green visible emission and PL intensity
was found enhanced with increase in doping percentage. The increase in the PL intensity was mainly due to Cu incorporation
in ZnO lattice. Currently, light-emitting diodes (LEDs) giving ultraviolet emission have been combined with broad-band visible
green phosphors to make white-light LEDs. Thus, green luminescent ZnO:Cu²⁺ nanoparticles are seen as necessary and condemnatory constituent for white-light generation from UV LEDs, underlying the
importance of the current work.

• Content Type Journal Article
• Category Research Paper
• DOI 10.1007/s11051-010-9916-3
• Authors
  • Prashant K. Sharma, University of Allahabad Nanotechnology Application Centre (Formerly Nanophosphor Application Centre) Allahabad 211002 India
  • Manvendra Kumar, University of Allahabad Nanotechnology Application Centre (Formerly Nanophosphor Application Centre) Allahabad 211002 India
  • Avinash C. Pandey, University of Allahabad Nanotechnology Application Centre (Formerly Nanophosphor Application Centre) Allahabad 211002 India

• Journal Journal of Nanoparticle Research
• Online ISSN 1572-896X
• Print ISSN 1388-0764

"

Luminescent Gold Nanoparticles with Mixed Valence States Generated from Dissociation of Polymeric Au(I) Thiolates

Luminescent Gold Nanoparticles with Mixed Valence States Generated from Dissociation of Polymeric Au(I) Thiolates: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Stable colloidal suspensions of nanostructured zirconium oxide synthesized by hydrothermal process

Stable colloidal suspensions of nanostructured zirconium oxide synthesized by hydrothermal process: "

Abstract  

Nanocrystalline zirconium oxide was synthesized by hydrothermal treatment of ZrO(NO₃)₂ and ZrOCl₂ aqueous solutions at different temperatures and time in presence of hydrogen peroxide. Hydrothermal treatment of zirconium
salts (0.25 and 0.50 mol L⁻¹) produced nanocrystalline monoclinic ZrO₂ powders with narrow size distribution, which were formed by the attachment of the smaller particles with crystallites size
of 3.5 nm, estimated by means of the Scherrer’s equation and confirmed by transmission electronic microscopy. Typical monoclinic
zirconium oxide X-ray powder diffraction patterns and Raman spectra were obtained for all the crystalline powders. It was
observed that the crystallization depends strongly on the temperature, resulting in amorphous material when the synthesis
was realized at 100 °C, and crystalline with monoclinic phase when synthesized at 110 °C, independently of the salt used.
Zirconium oxide colloidal nanoparticles were formed only at hydrothermal treatments longer than 24 h. The stability of the
colloids was successfully characterized of zeta potential, showing an initial value of + 59.2 mV in acid media and isoelectric
point at pH = 5.2, in good agreement with previous studies.

• Content Type Journal Article
• Category Research Paper
• DOI 10.1007/s11051-010-9906-5
• Authors
  • Tatiane M. Arantes, LIEC Department of Chemistry UFSCar. Rod.Washington Luis km 235 São Carlos SP 13565 Brazil
  • Giovanni P. Mambrini, LIEC Department of Chemistry UFSCar. Rod.Washington Luis km 235 São Carlos SP 13565 Brazil
  • Daniel G. Stroppa, LME Brazilian Synchrotron Light Laboratory Campinas SP Brazil
  • Edson R. Leite, LIEC Department of Chemistry UFSCar. Rod.Washington Luis km 235 São Carlos SP 13565 Brazil
  • Elson Longo, UNESP Institute of Chemistry Araraquara SP Brazil
  • Antonio J. Ramirez, LME Brazilian Synchrotron Light Laboratory Campinas SP Brazil
  • Emerson R. Camargo, LIEC Department of Chemistry UFSCar. Rod.Washington Luis km 235 São Carlos SP 13565 Brazil

• Journal Journal of Nanoparticle Research
• Online ISSN 1572-896X
• Print ISSN 1388-0764

"

Ferromagnetism in Cu-doped ZnSe semiconducting quantum dots

Ferromagnetism in Cu-doped ZnSe semiconducting quantum dots: "

Abstract  

The projection of integrating optical, magnetic and electronic functionalities into a single material have aggravated passionate
attention in mounting wide band gap diluted magnetic semiconductor (DMS) in the midst of room temperature ferromagnetism.
We report the evidence of ferromagnetism in Cu-doped ZnSe quantum dots (QDs) below room temperature, grown from a single source
precursor by lyothermal method with the sizes of approximately 3.2–5.14 nm. QDs mainly exhibit paramagnetic behavior between
80 and 300 K, with a weak ferromagnetic/anti-ferromagnetic exchange at lower temperature as observed by superconducting quantum
interference device (SQUID) magnetometer. From the Curie–Weiss behavior of the susceptibility, Curie temperature (T
_c) of Cu-doped ZnSe sample has been evaluated. From EPR, we obtain the Lande-g factor in the Zeeman interaction term as 2.060. Photoluminescence and EPR measurements support and confirm the view that
Cu²⁺ substitutes for Zn²⁺ in Cu-doped ZnSe quantum dots.

• Content Type Journal Article
• Category Research Paper
• DOI 10.1007/s11051-010-9914-5
• Authors
  • Pushpendra Kumar, Banaras Hindu University Department of Physics, Faculty of Science Varanasi 221005 India
  • Kedar Singh, Banaras Hindu University Department of Physics, Faculty of Science Varanasi 221005 India

• Journal Journal of Nanoparticle Research
• Online ISSN 1572-896X
• Print ISSN 1388-0764

"

Template-Directed Synthesis and Organization of Shaped Oxide/Phosphate Nanoparticles

Template-Directed Synthesis and Organization of Shaped Oxide/Phosphate Nanoparticles: "Chemistry of Materials, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Triggering the Sintering of Silver Nanoparticles at Room Temperature

Triggering the Sintering of Silver Nanoparticles at Room Temperature: "ACS Nano, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Shape- and Size-Controlled Synthesis of Monoclinic ErOOH and Cubic Er2O3 from Micro- to Nanostructures and Their Upconversion Luminescence

Shape- and Size-Controlled Synthesis of Monoclinic ErOOH and Cubic Er2O3 from Micro- to Nanostructures and Their Upconversion Luminescence: "ACS Nano, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Effect of Air Exposure on Surface Properties, Electronic Structure, and Carrier Relaxation in PbSe Nanocrystals

Effect of Air Exposure on Surface Properties, Electronic Structure, and Carrier Relaxation in PbSe Nanocrystals: "ACS Nano, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

A Universal Method for the Preparation of Magnetic and Luminescent Hybrid Nanoparticles

A Universal Method for the Preparation of Magnetic and Luminescent Hybrid Nanoparticles: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

High quality self-assembly magnetite (Fe3O4) chain-like core-shell nanowires with luminescence synthesized by a facile one-pot hydrothermal process

High quality self-assembly magnetite (Fe3O4) chain-like core-shell nanowires with luminescence synthesized by a facile one-pot hydrothermal process: "

Junyan Gong, Shanzhong Li, Dongen Zhang, Xiaobo Zhang, Chao Liu, Zhiwei Tong

(Communication from Chem. Commun.)

Junyan Gong, Chem. Commun., 2010, DOI: 10.1039/c002199g

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Mesoporous SrF2 and SrF2:Ln3+ (Ln = Ce, Tb, Yb, Er) Hierarchical Microspheres: Hydrothermal Synthesis, Growing Mechanism, and Luminescent Properties

Mesoporous SrF2 and SrF2:Ln3+ (Ln = Ce, Tb, Yb, Er) Hierarchical Microspheres: Hydrothermal Synthesis, Growing Mechanism, and Luminescent Properties: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Distance-Dependent Fluorescence Quenching and Binding of CdSe Quantum Dots by Functionalized Nitroxide Radicals

Distance-Dependent Fluorescence Quenching and Binding of CdSe Quantum Dots by Functionalized Nitroxide Radicals: "The Journal of Physical Chemistry C, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Synthesis and Characterization of Cadmium Phosphide Quantum Dots Emitting in the Visible Red to Near-Infrared

Synthesis and Characterization of Cadmium Phosphide Quantum Dots Emitting in the Visible Red to Near-Infrared: "Journal of the American Chemical Society, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Aqueous Synthesis of Zinc Blende CdTe/CdS Magic-Core/Thick-Shell Tetrahedral-Shaped Nanocrystals with Emission Tunable to Near-Infrared

Aqueous Synthesis of Zinc Blende CdTe/CdS Magic-Core/Thick-Shell Tetrahedral-Shaped Nanocrystals with Emission Tunable to Near-Infrared: "Journal of the American Chemical Society, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Photoluminescence and Spectroelectrochemistry of Single Ag Nanowires

Photoluminescence and Spectroelectrochemistry of Single Ag Nanowires: "ACS Nano, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Self-Assembly of CdTe Tetrapods into Network Monolayers at the Air/Water Interface

Self-Assembly of CdTe Tetrapods into Network Monolayers at the Air/Water Interface: "ACS Nano, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Synthesis of In2O3 Nanowire-Decorated Ga2O3 Nanobelt Heterostructures and Their Electrical and Field-Emission Properties

Synthesis of In2O3 Nanowire-Decorated Ga2O3 Nanobelt Heterostructures and Their Electrical and Field-Emission Properties: "ACS Nano, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Gap Structure Effects on Surface-Enhanced Raman Scattering Intensities for Gold Gapped Rods

Gap Structure Effects on Surface-Enhanced Raman Scattering Intensities for Gold Gapped Rods: "Nano Letters, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

Facts and Artifacts in the Blinking Statistics of Semiconductor Nanocrystals

Facts and Artifacts in the Blinking Statistics of Semiconductor Nanocrystals: "Nano Letters, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable)."

From Ag Nanoprisms to Triangular AuAg Nanoboxes

From Ag Nanoprisms to Triangular AuAg Nanoboxes: "

Galvanic replacement reactions are successfully employed to produce enclosed triangular AuAg nanoboxes from a Ag nanoprism template (left). The interior cavity is clearly revealed by TEM images of edge-oriented nanoparticles (right). These are exciting candidates for the encapsulation and transport of drugs and other interesting materials.

[Full Paper]
Damian Aherne, Matthew Gara, John M. Kelly, Yurii K. Gun'ko
Adv. Funct. Mater., March 30, 2010, DOI: 10.1002/adfm.200902030. Read article.

"