Hostname: page-component-848d4c4894-8kt4b Total loading time: 0 Render date: 2024-06-18T17:17:58.800Z Has data issue: false hasContentIssue false

Studies of Photoredox Reactions on Nanosize Semiconductors

Published online by Cambridge University Press:  15 February 2011

Jess P. Wilcoxon
Affiliation:
Sandia National Laboratories, Org 1152, Albuquerque, NM
F. Parsapour
Affiliation:
Colorado State U., Dept. of Chemistry, Fort Collins, Co.
D. F. Kelley
Affiliation:
Colorado State U., Dept. of Chemistry, Fort Collins, Co.
Get access

Abstract

Light induced electron transfer (ET) from nanosize semiconductors of MoS2 to organic electron acceptors such as 2,2′-bipyridine (bpy) and methyl substituted 4,4′,5,5′-tetramethyl-2,2′-bipyridine (tmb) was studied by static and time resolved photoluminescence spectroscopy. The kinetics of ET were varied by changing the nanocluster size (the band gap), the electron acceptor, and the polarity of the solvent. MoS2is an especially interesting semiconductor material as it is an indirect semiconductor in bulk form, and has a layered covalent bonding arrangement which is highly resistant to photocorrosion.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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]Wilcoxon, J.P. and Samara, G.A., Phys. 51, R7299, (1995).Google Scholar
[2]Wilcoxon, J.P., Samara, G., and Newcomer, P., in Nanocrystalline Semiconductors. Ed. Jena, P., (Mat Res Soc Proc, Boston, MA., 1994), pp. 277–81.Google Scholar
[3]Wilcoxon, J.P., Newcomer, P.P., and Samara, G.A., J. Appl. Phys., submitted, (1996).Google Scholar
[4]Evans, B.L. in Optical and Electrical Properties (of Materials with Layered Structures), ed Lee, P.A., D. Reidei Publ, Boston, 1976, Chapt. 1, pg 1.Google Scholar
[5]Tributsch, H., Naturforsch, Z.32a, 972, (1977).Google Scholar
[6]Parsapour, F., Kelley, D.F., Craft, S., and Wilcoxon, J.P., J. Chem. Phys., 104, 1, (1996).Google Scholar