Studies of photoredox reactions on nanosize semiconductors

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Light induced electron transfer (ET) from nanosize semiconductors Of MoS{sub 2} 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. MoS{sub 2} is 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.

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6 p.

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Wilcoxon, J.P.; Parsapour, F. & Kelly, D.F. February 1, 1997.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Light induced electron transfer (ET) from nanosize semiconductors Of MoS{sub 2} 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. MoS{sub 2} is 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.

Physical Description

6 p.

Notes

OSTI as DE97001883

Source

  • 4. international conference on quantum confinement: nanoscale materials, devices and systems, Montreal (Canada), 4-9 May 1997

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  • Other: DE97001883
  • Report No.: SAND--96-2815C
  • Report No.: CONF-970578--1
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 460789
  • Archival Resource Key: ark:/67531/metadc683413

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  • February 1, 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • June 14, 2016, 4:19 p.m.

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Wilcoxon, J.P.; Parsapour, F. & Kelly, D.F. Studies of photoredox reactions on nanosize semiconductors, article, February 1, 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc683413/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.