scholarly journals Precursor-Directed Assembly of Complex Oxide Nanobeads: The Role of Strongly Coordinated Inorganic Anions

Langmuir ◽  
2011 ◽  
Vol 27 (18) ◽  
pp. 11622-11628 ◽  
Author(s):  
Olesya A. Nikonova ◽  
Jean-Marie Nedelec ◽  
Vadim G. Kessler ◽  
Gulaim A. Seisenbaeva
Keyword(s):  
Directed Assembly ◽  
Complex Oxide ◽  
Inorganic Anions

Stabilizing role of lithium in structures of complex oxide compounds as an instrument for crystal chemical design

2009 ◽  
Vol 50 (S1) ◽  
pp. 78-85 ◽  
Author(s):  
S. F. Solodovnikov ◽  
E. G. Khaikina ◽  
Z. A. Solodovnikova
Keyword(s):  
Complex Oxide ◽  
Crystal Chemical ◽  
Chemical Design

Directed Assembly of Nanoparticles in Block Copolymer Thin Films: Role of Defects

2010 ◽  
Vol 43 (24) ◽  
pp. 10452-10456 ◽  
Author(s):  
Jenny Kim ◽  
Peter F. Green
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Directed Assembly

A series of silver(i) coordination polymers of a new linear 4-((pyridin-4-ylthio)methyl)pyridine ligand: the role of organic and inorganic anions

CrystEngComm ◽  
2015 ◽  
Vol 17 (4) ◽  
pp. 797-806 ◽  
Author(s):  
Chong-Qing Wan ◽  
Xiao-Li Sun ◽  
Ai-Min Li ◽  
Xin-Zhan Sun ◽  
Hung Kay Lee ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Inorganic Anions ◽  
Pyridine Ligand ◽  
Methyl Pyridine

scholarly journals RESISTIVE SWITCHING PHENOMENA IN COMPLEX OXIDE HETEROSTRUCTURES

2013 ◽  
Vol 27 (29) ◽  
pp. 1330021 ◽  
Author(s):  
YU-LING JIN ◽  
KUI-JUAN JIN ◽  
CHEN GE ◽  
HUI-BIN LU ◽  
GUO-ZHEN YANG
Keyword(s):  
Resistive Switching ◽  
Oxygen Vacancies ◽  
Complex Oxide ◽  
Perovskite Oxide ◽  
Ferroelectric Polarization ◽  
Oxide Heterostructures ◽  
Polarization Voltage ◽  
Data Memory ◽  
Current Voltage

Resistive memories based on the resistive switching effect have promising application in the ultimate nonvolatile data memory field. This brief review focuses on the resistive switching phenomena in the perovskite oxide heterostructures, which originate from the modulation of the interface properties due to the movement of the oxygen vacancies and the ferroelectric polarization. Many recent experiments have been carried out to demonstrate the role of the oxygen vacancies by controlling the content of the oxygen vacancies in the oxide heterostructures with plenty of oxygen vacancies. The important role of the ferroelectric polarization was also carefully confirmed by analyzing the relationship between the current–voltage and polarization–voltage loops in the ferroelectric oxide heterostructures. The physical mechanisms have been revealed based on the developed numerical model.

Plasma-molten Metal and/or Liquid Interactions for Materials/Chemical Processing

2020 ◽  
Vol MA2020-01 (17) ◽  
pp. 1106-1106
Author(s):  
Mahendra Kumar Sunkara
Keyword(s):  
Liquid Phase ◽  
Epitaxial Growth ◽  
Molten Metal ◽  
Oxygen Plasma ◽  
Liquid Droplet ◽  
Complex Oxide ◽  
Plasma Oxidation ◽  
Liquid Precursors ◽  
Liquid Phase Epitaxial Growth

Several grand challenges in energy storage and conversion need the discovery of functional materials that many agree will be composed of complex compositions at nanoscale. In this regard, plasma based materials processing has been shown to be promising for combinatorial techniques and scalable processing. The use of plasma oxidation of liquid precursors allows for creation of metastable complex oxide particles with compositional control.1 A number of examples will be discussed in which the above two techniques are currently being used for accelerating the development of a variety of catalysts including electrocatalysts and materials for storage applications. This talk will highlight our efforts to understand the role of plasmas under two categories: (a) the synergistic effects hydrogen and nitrogen plasma interactions with molten metals;2 and (b) the oxygen plasma-liquid droplet interactions.3 To gain insights into these mechanisms we have studied the interaction of hydrogen and nitrogen plasmas with low melting point metals, primarily with gallium. Absorption/desorption experiments as well as theoretical-computational calculations were performed. Experiments have shown an increment of adsorbed gaseous species into the molten metal in the presence of plasmas. In the case of oxygen plasma-liquid droplet interactions for creating complex oxides, the role of solvated electrons, oxygen radicals and heating effects will be discussed. Finally, the use of plasmas for achieving liquid phase epitaxial growth of GaN and related materials will be discussed.4 Author acknowledge primary funding support from NSF Solar Project (DMS 1125909), and NSF EPSCoR (1355438). References 1. P. Ajayi, S. Kumari, D. Jaramillo-Cabanzo, J. Spurgeon, J. Jasinski and M.K. Sunkara, “A rapid and scalable method for making mixed metal oxide alloys for enabling accelerated materials discovery”, J. of Materials Research, 31 (11), 1596-1607(2016) 2. L. Carreon, D.F. Jaramillo-Cabanzo, I. Chaudhuri, M. Menon and M.K. Sunkara, “Synergistic interactions of H2 and N2 with molten gallium in the presence of plasma”, Journal of Vacuum Science and Technology A, 36, 021303 (2018). 3. P. Ajayi, M. Z. Akram, W. H. Paxton, J. B. Jasinski and M. K. Sunkara, “Nucleation and Growth Mechanisms During Complex Oxide Formation Using Plasma Oxidation of Liquid Precursors”, Submitted (2019) 4. Jaramillo, J. Jasinski and M. Sunkara, “Liquid Phase Epitaxial Growth of Gallium Nitride”, Crystal Growth and Design, 19, 11, 6577-6585(2019)

Charge-transfer interactions of excited molecules with inorganic anions: the role of spin-orbit coupling in controlling net electron transfer

1983 ◽  
Vol 95 (4-5) ◽  
pp. 333-338 ◽  
Author(s):  
A. Treinin ◽  
I. Loeff ◽  
J.K. Hurley ◽  
H. Linschitz
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Inorganic Anions ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Excited Molecules

scholarly journals Epitaxial growth of complex oxide films: Role of surface reconstructions

2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Michele Riva ◽  
Giada Franceschi ◽  
Michael Schmid ◽  
Ulrike Diebold
Keyword(s):  
Epitaxial Growth ◽  
Oxide Films ◽  
Complex Oxide ◽  
Surface Reconstructions ◽  
Complex Oxide Films

scholarly journals Directed assembly of magnetic and semiconducting nanoparticles with tunable and synergistic functionality

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Mark Bartolo ◽  
Jussi J. Amaral ◽  
Linda S. Hirst ◽  
Sayantani Ghosh
Keyword(s):  
Liquid Crystalline ◽  
Critical Role ◽  
Directed Assembly ◽  
Building Blocks ◽  
Design And Synthesis ◽  
Transmission Electron ◽  
20 Nm ◽  
Microscopy Characterization

Abstract The ability to fabricate new materials using nanomaterials as building blocks, and with meta functionalities, is one of the most intriguing possibilities in the area of materials design and synthesis. Semiconducting quantum dots (QDs) and magnetic nanoparticles (MNPs) are co-dispersed in a liquid crystalline (LC) matrix and directed to form self-similar assemblies by leveraging the host’s thermotropic phase transition. These co-assemblies, comprising 6 nm CdSe/ZnS QDs and 5–20 nm Fe3O4 MNPs, bridge nano- to micron length scales, and can be modulated in situ by applied magnetic fields <250 mT, resulting in an enhancement of QD photoluminescence (PL). This effect is reversible in co-assemblies with 5 and 10 nm MNPs but demonstrates hysteresis in those with 20 nm MNPs. Transmission electron microscopy (TEM) and energy dispersive spectroscopy reveal that at the nanoscale, while the QDs are densely packed into the center of the co-assemblies, the MNPs are relatively uniformly dispersed through the cluster volume. Using Lorentz TEM, it is observed that MNPs suspended in LC rotate to align with the applied field, which is attributed to be the cause of the observed PL increase at the micro-scale. This study highlights the critical role of correlating multiscale spectroscopy and microscopy characterization in order to clarify how interactions at the nanoscale manifest in microscale functionality.

Directed assembly of Au and Fe nanoparticles on a TiOx/Pt(111) ultrathin template: the role of oxygen affinity

2009 ◽  
Vol 11 (47) ◽  
pp. 11305 ◽  
Author(s):  
Emanuele Cavaliere ◽  
Iskandar Kholmanov ◽  
Luca Gavioli ◽  
Francesco Sedona ◽  
Stefano Agnoli ◽  
...  
Keyword(s):  
Oxygen Affinity ◽  
Directed Assembly ◽  
Fe Nanoparticles

The mechanism and regulation of the electrosorption selectivity of inorganic anions during capacitive deionization

2021 ◽  
Author(s):  
WenYang Deng ◽  
XueRu Jia ◽  
Yi Chen ◽  
Zhen Wang ◽  
FangFang Chen ◽  
...  
Keyword(s):  
Inorganic Anions ◽  
Hydration Energy ◽  
Capacitive Deionization ◽  
Influence Of Hydration

Explore and verify the influence of hydration energy and valence on selectivity of anions, and the role of anion's shape

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