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Studies of Photoredox Reactions on Nanosize Semiconductors

Published online by Cambridge University Press:  15 February 2011

Jess P. Wilcoxon ,
F. Parsapour  and
D. F. Kelley
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.
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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
Information
MRS Online Proceedings Library (OPL) , Volume 452 , 1996 , 601
Copyright
Copyright © Materials Research Society 1997

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References

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