Document Detail

Synthesis and characterization of dimensionally ordered semiconductor nanowires within mesoporous silica.
MedLine Citation:
PMID:  11459479     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Semiconductor nanowires of silicon have been synthesized within the pores of mesoporous silica using a novel supercritical fluid solution-phase approach. Mesoporous silica, formed by the hydrolysis of tetramethoxysilane (TMOS) in the presence of a triblock copolymer surfactant, was employed for the nucleation and growth of quantum-confined nanowires. The filling of the silica mesopores with crystalline silicon and the anchoring of these nanowires to the sides of the pores were confirmed by several techniques including electron microscopy, powder X-ray diffraction, 29Si magic angle spinning nuclear magnetic resonance, infrared spectroscopy, and X-ray fluorescence. Effectively, the silica matrix provides a means of producing a high density of stable, well-ordered arrays of semiconductor nanowires in a low dielectric medium. The ordered arrays of silicon nanowires also exhibited discrete electronic and photoluminescence transitions that could be exploited in a number of applications, including nanodevices and interconnects.
N R Coleman; N O'Sullivan; K M Ryan; T A Crowley; M A Morris; T R Spalding; D C Steytler; J D Holmes
Related Documents :
17125319 - Density functional theory study of geometrical structures and electronic properties of ...
19730829 - Fabrication of semiconductor nanowires by conjugation of quantum dots to actin filaments.
19550009 - Resistance switching in a sic nanowire/au nanoparticle network.
18572609 - Electrodeposition and characterization of cdse semiconducting nanowires.
17887719 - Localized electron states near a metal/semiconductor nanocontact.
19636159 - Correlations between surface-excitonic emission bands in zno nanowires.
21641329 - Minor complexes at work: light-harvesting by carotenoids in the photosystem ii antenna ...
18518609 - Breakdown limits on gigavolt-per-meter electron-beam-driven wakefields in dielectric st...
16942229 - Resonance raman study of the a-band short-time photodissociation dynamics of 2-iodothio...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  123     ISSN:  0002-7863     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2001-07-18     Completed Date:  2001-12-04     Revised Date:  2003-10-31    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  7010-6     Citation Subset:  -    
Department of Chemistry and Supercritical Fluid Centre, University College Cork, Cork, Ireland.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Enantioselective fluorination mediated by cinchona alkaloid derivatives/Selectfluor combinations: re...
Next Document:  Rational reprogramming of the R2 subunit of Escherichia coli ribonucleotide reductase into a self-hy...