Nanobelts of Semiconducting Oxides

Ultralong beltlike (or ribbonlike) nanostructures (so-called nanobelts) were successfully synthesized for semiconducting oxides of zinc, tin, indium, cadmium, and gallium by simply evaporating the desired commercial metal oxide powders at high temperatures. The as-synthesized oxide nanobelts are pur...

Full description

Saved in:
Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2001-03, Vol.291 (5510), p.1947-1949
Main Authors: Pan, Zheng Wei, Dai, Zu Rong, Wang, Zhong Lin
Format: Article
Language:English
Subjects:
Chemical elements
Chemistry
Cross-disciplinary physics: materials science
rheology
Crystal morphology
Crystal structure
Electrons
Evaporation
Exact sciences and technology
Heat
Materials science
Melting points
Nanoparticles
Nanoscale materials and structures: fabrication and characterization
Nanostructures
Nanotechnology
Nanowires
Organic Chemistry
Oxides
Physics
Semiconductors
Uniforms
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ultralong beltlike (or ribbonlike) nanostructures (so-called nanobelts) were successfully synthesized for semiconducting oxides of zinc, tin, indium, cadmium, and gallium by simply evaporating the desired commercial metal oxide powders at high temperatures. The as-synthesized oxide nanobelts are pure, structurally uniform, and single crystalline, and most of them are free from defects and dislocations. They have a rectanglelike cross section with typical widths of 30 to 300 nanometers, width-to-thickness ratios of 5 to 10, and lengths of up to a few millimeters. The beltlike morphology appears to be a distinctive and common structural characteristic for the family of semiconducting oxides with cations of different valence states and materials of distinct crystallographic structures. The nanobelts could be an ideal system for fully understanding dimensionally confined transport phenomena in functional oxides and building functional devices along individual nanobelts.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1058120