Document Details

Document Type : Article In Journal 
Document Title :
Smooth and conductive DNA-templated Cu2O nanowires: growth morphology, spectroscopic and electrical characterization
Smooth and conductive DNA-templated Cu2O nanowires: growth morphology, spectroscopic and electrical characterization
 
Subject : physics 
Document Language : English 
Abstract : DNA strands have been used as templates for the self-assembly of smooth and conductive cuprous oxide (Cu2O) nanowires of diameter 12-23 nm and whose length is determined by the template (16 mu m for lambda-DNA). A combination of spectroscopic, diffraction and probe microscopy techniques showed that these nanowires comprise single crystallites of Cu2O bound to the DNA molecules which fused together over time in a process analogous to Ostwald ripening, but driven by the free energy of interaction with the template as well as the surface tension. Electrical characterization of the nanowires by a non-contact method, scanned conductance microscopy and by contact mode conductive AFM showed the wires are electrically conductive. The conductivity estimated from the AFM cross section and the zero-bias conductance in conductive AFM experiments was 2.2-3.3 S cm(-1). These Cu2O nanowires are amongst the thinnest reported and show evidence of strong quantum confinement in electronic spectra. 
ISSN : 0957-4484 
Journal Name : NANOTECHNOLOGY 
Volume : 23 
Issue Number : 7 
Publishing Year : 1433 AH
2012 AD 
Article Type : Article 
Added Date : Tuesday, July 25, 2017 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Reda HassanienHassanien, Reda InvestigatorDoctorate 
Said A. Farha Al-SaidAl-Said, Said A. Farha ResearcherDoctorate 
Lidija SillerSiller, Lidija ResearcherDoctorate 
Ross LittleLittle, Ross ResearcherDoctorate 
Nicholas G WrightWright, Nicholas G ResearcherDoctorate 
Andrew Houlton,Houlton,, Andrew ResearcherDoctorate 
Benjamin R HorrocksHorrocks, Benjamin R ResearcherDoctorate 

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