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Fabrication of Low Cost 1D CdSe Nanowires using Near-field Electrospinning

Published online by Cambridge University Press:  08 March 2011

Leroy Magwood  and
Binil Starly
Leroy Magwood
Affiliation:
School of Industrial Engineering, University of Oklahoma, Norman, OK 73019, USA.
Binil Starly
Affiliation:
School of Industrial Engineering, University of Oklahoma, Norman, OK 73019, USA. University of Oklahoma Bioengineering Center, University of Oklahoma, Norman, OK 73019, USA.
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Abstract

Well-aligned, 1D CdSe quantum dot (QD) fibers (0.3μm to 2.5μm) containing up to 20wt% fluorescent quantum dots (QDs) were prepared by near-field electrospinning (NFES) process. Electrospun solutions were prepared using PVAc as the matrix polymer, dimethyl formamide (DMF) solvent and colloidal QDs in chloroform (CHCl3). The diameter of the fibers decreased as the ratio of DMF/CHCl3 is varied. QDs showed good dispersion and a linear relationship between QD loading and fiber diameter, as determined by the morphology measurements taken using TEM and SEM, respectively. Fluorescence microscopy shows that there is light attenuation throughout the fibers. Results also show that the NFES process may be used as a method to create aligned, 1D fibers of QDs and potentially other nanofibers.

Keywords

semiconductingfiberpolymer
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1302: Symposium W – Nanowires—Growth and Device Assembly for Novel Applications , 2012 , mrsf10-1302-w09-14
Copyright
Copyright © Materials Research Society 2011

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References

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