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Title: Synthesis and characterization of amorphous SiO2 nanowires directly grown on Cu substrates

Journal Article · · Journal of Sol-Gel Science and Technology
ORCiD logo [1];  [2];  [1]
  1. Universidad Autonoma de Madrid (Spain). Departamento de Fisica Aplicada and Instituto Nicolas Cabrera
  2. University of Turabo, Gurabo (United States). Nanomaterials Research Group, School of Natural Sciences and Technology

In this work, a novel procedure for the growth of Silica nanowires directly from Cu substrates is reported. The singlestep synthesis procedure consists of a thermal treatment at 900 °C in Ar-H2 atmosphere, without the need for additional catalysts. Nanowires grow from Cu protrusions generated on the surface during annealing via Vapor–Liquid–Solid method, giving rise to a branched structure. These SiO2 nanostructures present an amorphous structure as evidenced by transmission electron microscopy. Silica nanowires grown on Cu and Si substrates have been characterized by XPS. Additionally, room-temperature photoluminescence measurements show a blue-green emission peak at ca. 509 nm (2.44 eV) attributed to oxygen deficiencies in the structure. The success of this procedure allows for future possible incorporation of these nanowires in optoelectronic devices.

Research Organization:
University of Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
NA0000672
OSTI ID:
1335964
Journal Information:
Journal of Sol-Gel Science and Technology, Vol. 81, Issue 2; ISSN 0928-0707
Publisher:
Springer
Country of Publication:
United States
Language:
English

References (27)

Electrochemical behaviors of nonstoichiometric silicon suboxides (SiOx) film prepared by reactive evaporation for lithium rechargeable batteries journal December 2013
Vapor-liquid-solid mechanism of single crystal growth journal March 1964
Recent Developments in One-Dimensional Inorganic Nanostructures for Photodetectors journal November 2010
Diameter-controlled synthesis of single-crystal silicon nanowires journal April 2001
The reaction of atomic oxygen with Si(100) and Si(111) journal October 1991
Combinatorial Studies of Si 1− x O x as a Potential Negative Electrode Material for Li-Ion Battery Applications journal January 2013
Maximizing omnidirectional light harvesting in metal oxide hyperbranched array architectures journal May 2014
Modified SiO as a high performance anode for Li-ion batteries journal January 2013
Modeling of silica nanowires for optical sensing journal January 2005
The interaction of molecular and atomic oxygen with Si(100) and Si(111) journal January 1993
Branched nanowires: Synthesis and energy applications journal August 2012
Luminescence centres in silica nanowires journal June 2006
Wide range excitation of visible luminescence in nanosilica journal December 2010
WO3-x@Au@MnO2 Core-Shell Nanowires on Carbon Fabric for High-Performance Flexible Supercapacitors journal January 2012
Synthesis and photoluminescence of aligned SiO x nanowire arrays journal January 2003
A new approach of the synthesis of SiO2 nanowires by using bulk copper foils as catalyst journal November 2016
Large scale and cost effective generation of 3D self-supporting oxide nanowire architectures by a top-down and bottom-up combined approach journal January 2016
Dendritic Au/TiO2 nanorod arrays for visible-light driven photoelectrochemical water splitting journal January 2013
Amorphous silica nanowires: Intensive blue light emitters journal November 1998
Luminescence features of nonbridging oxygen hole centres in silica probed by site-selective excitation with tunable laser journal April 2008
Microspheres for the Growth of Silicon Nanowires via Vapor-Liquid-Solid Mechanism journal January 2014
Synthesis and photoluminescence of aligned straight silica nanowires on Si substrate journal May 2006
Subwavelength-diameter silica wires for low-loss optical wave guiding journal December 2003
Three-Dimensional Self-Supported Metal Oxides for Advanced Energy Storage journal April 2014
Fabrication and characterization of amorphous silica nanostructures journal June 2008
Nanoscroll Buffered Hybrid Nanostructural VO 2 (B) Cathodes for High-Rate and Long-Life Lithium Storage journal March 2013
Experimental evidence of the generation of gaseous SiO as precursor for the growth of SiO nanowires journal August 2015