Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-29T07:35:31.630Z Has data issue: false hasContentIssue false

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

Published online by Cambridge University Press:  08 March 2011

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.
Get access

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.

Type
Research Article
Copyright
Copyright © Materials Research Society 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Bhattacharya, P., Ghosh, S., Stiff-Roberts, A.D., Ann. Rev. Mat. Res., 2004, 34, 1 Google Scholar
2. Li, Y., Quian, F., Xiang, J., Lieber, C.M., Materials Today 2006, 9, 18 Google Scholar
3. Randall, J.N., Reed, M.A., Moore, T.M., Matyi, R.J. and Lee, J.W.. J. Vac. Sci. Technol. B (1988), p. 302 Google Scholar
4. Cui, Y. and Lieber, C.M.. Science 2001, 291, 851 Google Scholar
5. Law, M., Sirbuly, D., Johnson, J., Goldberg, J., Saykally, R., Yang, P., Science 2004, 305, 1269.Google Scholar
6. Song, M.Y., Kim, D.K., Jo, S.M., Kim, D.Y. Synth. Met. 2005, 155, 635 Google Scholar
7. Piperno, S., Passacantando, M., Santucci, S., Lozzi, L., La Rosa, S. J. Appl. Phys. 2007, 101, 124504 Google Scholar
8. Rinaldi, M., Ruggieri, F., Lozzi, L., Santucci, S. J. Vac. Sci. Technol. B 2009, 27, 1829 Google Scholar
9. Qu, L., Peng, X. J. Am. Chem. Soc. 2002, 124, 2049 Google Scholar
10. Pesika, N.S., Stebe, K.J., Searson, P.C. J. Phys. Chem. B. 2003, 107, 10412 Brus, L.E. J. Phys. Chem. 1986, 90, 2555 Google Scholar
11. Chang, C., Limkrailassiri, K., Lin, L. Appl. Phys. Lett. 2008, 93, 123111 Google Scholar