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Nanostructured materials with well-controlled dimensions, compositions and architectures via precise molecular design of non-linear copolymers
(Georgia Institute of Technology, 2018-01-22)
Nanostructured materials with well-controlled dimensions, chemical compositions and complex architectures prepared by conventional colloidal bottom-up approaches offer superior ways to investigate self-assembly behaviors ...
Growth and field-emission property of tungsten oxide nanotip arrays
(Georgia Institute of Technology, 2005-11-21)
Large-area, quasialigned nanotips of tungsten oxide have been grown by a two-step high-temperature, catalyst-free, physical evaporation deposition process. The tungsten oxide nanotips are single crystalline with growth ...
Microstructure and its effect on field electron emission of grain-size-controlled nanocrystalline diamond films
(Georgia Institute of Technology, 2000-09-01)
Nanocrystalline Nanocrystalline diamond films were grown by microwave plasma assisted chemical vapor deposition using N₂ and CH₄ as precursors. The microstructure of the films such as the diamond grain size, graphite ...
Integration of metal oxide nanobelts with microsystems for nerve agent detection
(Georgia Institute of Technology, 2005-01-31)
We have assembled tin dioxide nanobelts with low-power microheaters for detecting dimethyl methylphosphonate (DMMP), a nerve agent simulant. The electrical conductance of a heated nanobelt increased for 5% upon exposure ...
Lead oxide nanobelts and phase transformation induced by electron beam irradiation
(Georgia Institute of Technology, 2002-01-14)
β -PbO₂ nanobelts, with a rectangular cross section, a typical length of 10–200 µm, a width of 50–300 nm, and a width-to-thickness ratio of 5–10, have been successfully synthesized by simple elevated evaporation of commercial ...
Nanoscale mechanical behavior of individual semiconducting nanobelts
(Georgia Institute of Technology, 2003-08-04)
Nanobelts are a group of materials that have a rectangle-like cross section with typical widths of several hundred nanometers, width-to-thickness ratios of 5–10, and lengths of hundreds of micrometers. In this letter, ...
Side-by-side silicon carbide–silica biaxial nanowires: Synthesis, structure, and mechanical properties
(Georgia Institute of Technology, 2000-11-20)
Elevated-temperature synthesis has been used to generate side-by-side biaxially structured silicon carbide–silica nanowires. The axial growth direction approaches [311] for nanowires with a high density of microtwins and ...
Dual-mode mechanical resonance of individual ZnO nanobelts
(Georgia Institute of Technology, 2003-06-30)
The mechanical resonance of a single ZnO nanobelt, induced by an alternative electric field, was studied by in situ transmission electron microscopy. Due to the rectangular cross section of the nanobelt, two fundamental ...
Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts
(Georgia Institute of Technology, 2002-09-02)
Gas sensors have been fabricated using the single-crystalline SnO₂ nanobelts. Electrical
characterization showed that the contacts were ohmic and the nanobelts were sensitive to
environmental polluting species like CO ...
Manganese-doped ZnO nanobelts for spintronics
(Georgia Institute of Technology, 2004-02-02)
Zinc oxide (ZnO) nanobelts synthesized by thermal evaporation have been ion implanted with 30 keV Mn+ ions. Both transmission electron microscopy and photoluminescence investigations show highly defective material directly ...