Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-23T08:47:09.760Z Has data issue: false hasContentIssue false
  • English
  • Français

Binding Characteristics of Surface Ligands on PbSe QDs and Impact on Electrical Conductivity

Published online by Cambridge University Press:  15 March 2011

Won Jin Kim ,
Sung Jin Kim ,
Jangwon Seo ,
Y. Sahoo ,
A. N. Cartwright ,
Kwang-Sup Lee  and
Paras N. Prasad
Won Jin Kim
Affiliation:
Institute for Lasers, Photonics and Biophotonics, University at Buffalo, Buffalo, New York 14260, USA
Sung Jin Kim
Affiliation:
Institute for Lasers, Photonics and Biophotonics, University at Buffalo, Buffalo, New York 14260, USA Department of Chemistry, University at Buffalo, Buffalo, New York 14260, USA
Jangwon Seo
Affiliation:
Institute for Lasers, Photonics and Biophotonics, University at Buffalo, Buffalo, New York 14260, USA
Y. Sahoo
Affiliation:
Institute for Lasers, Photonics and Biophotonics, University at Buffalo, Buffalo, New York 14260, USA
A. N. Cartwright
Affiliation:
Institute for Lasers, Photonics and Biophotonics, University at Buffalo, Buffalo, New York 14260, USA Department of Chemistry, University at Buffalo, Buffalo, New York 14260, USA
Kwang-Sup Lee
Affiliation:
Institute for Lasers, Photonics and Biophotonics, University at Buffalo, Buffalo, New York 14260, USA Department of Advanced Materials, Hannam University, Daejeon 305-811, Korea
Paras N. Prasad
Affiliation:
Institute for Lasers, Photonics and Biophotonics, University at Buffalo, Buffalo, New York 14260, USA Department of Chemistry, University at Buffalo, Buffalo, New York 14260, USA Department of Electrical Engineering, University at Buffalo, Buffalo, New York 14260, USA
Get access

Abstract

We report the binding and conductivity characteristics of PbSe nanocrystal quantum dots which have different ligands on the surface. The PbSe nanocrystal quantum dots were surface functionalized using chemical treatment. The results of post-treatment analysis show that the PbSe surface can be successfully functionalized with various ligands based on thiol- and amine-molecules (e.g., oleic acid, dodecanethiol and butylamine). Conductivity measurements performed using a metal-semiconductor-metal structure indicate that there is an increase of conductivity as the length of the ligand connecting the quantum dots is reduced.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1113: Symposium F – Low-Cost Solution-Based Deposition of Inorganic Films for Electronic/Photonic Devices , 2008 , 1113-F03-09
Copyright
Copyright © Materials Research Society 2009

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] Coe, S., Woo, W.-K., Bawendi, M., and Bulovic, V., Nature, 420, 800–803 (2002).Google Scholar
[2] Tessler, N., Medvedev, V., Kazes, M., Kan, S., and Banin, U., Science, 295, 1506–1508 (2002).Google Scholar
[3] McDonald, S. A., Konstantatos, G., Zhang, S., Cyr, P. W., Klem, E. J. D., Levina, L., and Sargent, E. H., Nat. Mater., 4, 138–142 (2005).Google Scholar
[4] Qi, D., Fischbein, M., Drndic, M., and Selmic, S., Appl. Phys. Lett., 86, 093103–3 (2005).Google Scholar
[5] Choudhury, K. R., Kim, W. J., Sahoo, Y., Lee, K.-S., and Prasad, P. N., Appl. Phys. Lett., 89, 051109–3 (2006).Google Scholar
[6] Talapin, D. V. and Murray, C. B., Science, 310, 86–89, (2005).Google Scholar
[7] Kim, W. J., Kim, S. J., Lee, K.-S., Samoc, M., Cartwright, A. N., and Prasad, P. N., Nano Lett., 8, 3262–3265 (2008).Google Scholar
[8] Gur, I., Fromer, N. A., Geier, M. L., and Alivisatos, A. P., Science, 310, 462–465, (2005).Google Scholar
[9] Huynh, W. U., Dittmer, J. J., and Alivisatos, A. P., Science, 295, 2425–2427, (2002).Google Scholar
[10] Winiarz, J. G., Zhang, L., Lal, M., Friend, C. S., and Prasad, P. N., J. Am. Chem. Soc., 121, 5287–5295 (1999).Google Scholar
[11] Kim, S. J., Kim, W. J., Sahoo, Y., Cartwright, A. N., and Prasad, P. N., Appl. Phys. Lett., 92, 031107–3 (2008).Google Scholar
[12] Murphy, J. E., Beard, M. C., and Nozik, A. J., J. Phys. Chem. B, 110, 25455–25461 (2006).Google Scholar
[13] Jarosz, M. V., Porter, V. J., Fisher, B. R., Kastner, M. A., and Bawendi, M. G., Phys. Review B, 70, 195327 (2004).Google Scholar
[14] Yang, J., Xue, C., Yu, S.-H., Zeng, J.-H., and Qian, Y.-T., Jian Yang, Angew. Chem. Int. Edit., 41, 4697–4700 (2002).Google Scholar
[15] Konstantatos, G., Clifford, J., Levina, L., and Sargent, E. H., Nat. Photon., 1, 531–534 (2007).Google Scholar
[16] Socrates, G., “Infrared Characteristic Group Frequencies”, 2nd ed. (John Wiley & Sons, New York 1994), p. 174.Google Scholar
[17] Spinner, E., J. Chem. Soc., 4217–4226 (1964).Google Scholar