TITLE

Role of surrounding oxygen on oxide nanowire growth

AUTHOR(S)
Klamchuen, Annop; Yanagida, Takeshi; Kanai, Masaki; Nagashima, Kazuki; Oka, Keisuke; Kawai, Tomoji; Suzuki, Masaru; Hidaka, Yoshiki; Kai, Shoichi
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/16/2010, Vol. 97 Issue 7, p073114
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The ability to control oxide nanowires via vapor-liquid-solid (VLS) mechanism remains an important challenge to explore various applications of oxide nanowires. Here we demonstrate the crucial roles of surrounding oxygen on VLS grown SnO2 nanowires. When the partial pressure of surrounding oxygen is relatively low, the oxygen mainly acts as an oxygen source, promoting VLS growth. While for relatively high oxygen partial pressures, vapor-solid (VS) growth emerges, suppressing nanowire growth. The findings as to the roles of surrounding oxygen on the inherent competition between VLS and VS growths are in principle rather universal for VLS grown nanowires of various oxides.
ACCESSION #
52997904

 

Related Articles

  • Size-dependent oxidation behavior for the anomalous initial thermal oxidation process of Si. Cui, H.; Sun, Y.; Yang, G. Z.; Yang, G. W.; Wang, C. X. // Applied Physics Letters;2/23/2009, Vol. 94 Issue 8, p083108 

    To have a clear insight into the physical origin of the anomalous initial oxidation behavior for silicon oxidation, we proposed a kinetics model by introducing the nanosize effect into the oxidation process. The rate equation of oxide growth was calculated based on our model, and these results...

  • Ultralow-power hydrogen sensing with single palladium nanowires. Offermans, P.; Tong, H. D.; van Rijn, C. J. M.; Merken, P.; Brongersma, S. H.; Crego-Calama, M. // Applied Physics Letters;6/1/2009, Vol. 94 Issue 22, p223110 

    Palladium nanowires were fabricated on silicon substrates using conventional microfabrication techniques. Sensors based on such nanowires show a reversible response to hydrogen concentrations as low as 27 ppm with response times varying from 5 s (H2 concentrations >20%) to 30 s (H2...

  • THE EFFECT OF OXYGEN CONCENTRATION ON OXIDISABILITY AND CHEMILUMINESCENCE FROM ISOTACTIC POLYPROPYLENE. Rychlý, Jozef; Malíková, Marta; Matisová-Rychlá, Lyda // AIP Conference Proceedings;9/1/2008, Vol. 1042 Issue 1, p303 

    It has been shown that the linear plot of maximum chemiluminescence intensity on concentration of oxygen in surrounding atmosphere does not correspond with negligible changes of oxidation induction time. Four-parametric “master equation” used in [1] has been applied for...

  • Ferric Iron in CaTiO3 Perovskite as an Oxygen Barometer for Kimberlite Magmas II: Applications. Dante Canil; Anthony J. Bellis // Journal of Petrology;Feb2007, Vol. 48 Issue 2, p231 

    We apply an oxygen barometer based on the Fe content of CaTiO3 perovskite to estimate the oxygen fugacity (fO2) during the crystallization and emplacement of kimberlites in different eruptive phases of a single pipe, or between different pipes, clusters or provinces. Mineral chemical data for...

  • Thermochemical study of gaseous salts of oxygen-containing acids: XIX. Nickel(II) salts. Shugurov, S. M.; Lopatin, S. I.; Stolyarova, V. L. // Russian Journal of General Chemistry;Mar2006, Vol. 76 Issue 3, p340 

    Existence of gaseous salts formed by nickel oxide NiO was established, and their standard enthalpies of formation and atomization were determined.

  • Electronic Effect of Substituent of Quinones on their Catalytic Performance in Hydrocarbons Oxidation. Lipeng Zhou; Yong Chen; Xiaomei Yang; Yunlai Su; Wei Zhang; Jie Xu // Catalysis Letters;Oct2008, Vol. 125 Issue 1/2, p154 

    Quinones with electron-withdrawing F, Cl or Br groups and N-hydroxyphthalimide (NHPI) were used as catalysts in selective oxidation of hydrocarbons with molecular oxygen as oxidant. The catalytic activity in the selective oxidation of ethylbenzene to oxygenation products was in the following...

  • Oxidative Stress, the Paradigm of Ozone Toxicity in Plants and Animals. Iriti, Marcello; Faoro, Franco // Water, Air & Soil Pollution;Jan2008, Vol. 187 Issue 1-4, p285 

    Tropospheric ozone represents a relevant atmospheric pollutant, because of its strong oxidizing potential. The risk for animal (human) and plant health, at molecular and cellular level, arises from the oxidative damage to lipids, proteins and nucleic acids, depending on the dose. Therefore,...

  • Structural and dynamical heterogeneity in molten Si-rich oxides. Wu, S. Q.; Wang, C. Z.; Zhu, Z. Z.; Ho, K. M. // Applied Physics Letters;1/25/2010, Vol. 96 Issue 4, p043121 

    Ab initio molecular dynamics simulations are performed to study the structural and dynamical properties of molten Si oxides. Segregation of SiOy (y<2) and pure Si network are clearly observed in the Si-rich oxide liquids. The size of Si-aggregate regions increases with increasing Si composition....

  • Water—Gas Shift Reaction Over Aluminum Promoted Cu/CeO2 Nanocatalysts Characterized by XRD, BET, TPR and Cyclic Voltammetry (CV). Lei Li; Yingying Zhan; Qi Zheng; Yuanhui Zheng; Xingyi Lin; Dalin Li; Junjiang Zhu // Catalysis Letters;Oct2007, Vol. 118 Issue 1/2, p91 

    A series of aluminum promoted Cu/CeO2 nanocatalysts with aluminum content in the range of 0–5wt.% were prepared by co-precipitation method and examined with respect to their catalytic performance for the water–gas shift (WGS) reaction. The catalysts were characterized by XRD, BET,...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics