Monitoring interfacial dynamics by pulsed laser techniques. Final report

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The research is aimed at understanding the structural, electronic, and reactive properties of semiconductors in solutions. Focus is on Si and GaAs surfaces because they are used in photovoltaic devices, etc. The pulsed laser techniques used included surface second harmonic generation in Si and laser induced photoluminescence in GaAs. SHG can measure space charge effects in the semiconductor under various conditions, ie, immersed in electrolyte, in presence of oxide overlayers, and under UHV conditions. The Si studies demonstrated the sensitivity of the phase of the SH response to space charge effects. With GaAs, time-correlated single photon counting methods were used ... continued below

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15 p.

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Richmond, G. December 31, 1995.

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Description

The research is aimed at understanding the structural, electronic, and reactive properties of semiconductors in solutions. Focus is on Si and GaAs surfaces because they are used in photovoltaic devices, etc. The pulsed laser techniques used included surface second harmonic generation in Si and laser induced photoluminescence in GaAs. SHG can measure space charge effects in the semiconductor under various conditions, ie, immersed in electrolyte, in presence of oxide overlayers, and under UHV conditions. The Si studies demonstrated the sensitivity of the phase of the SH response to space charge effects. With GaAs, time-correlated single photon counting methods were used in the picosecond time regime to examine the recombination luminescence following above band gap excitation (surface trapping velocities).

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15 p.

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OSTI as DE96007117

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  • Other Information: PBD: [1995]

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  • Other: DE96007117
  • Report No.: DOE/ER/45273--8
  • Grant Number: FG06-86ER45273
  • DOI: 10.2172/206437 | External Link
  • Office of Scientific & Technical Information Report Number: 206437
  • Archival Resource Key: ark:/67531/metadc668823

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  • December 31, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Nov. 24, 2015, 4:37 p.m.

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Richmond, G. Monitoring interfacial dynamics by pulsed laser techniques. Final report, report, December 31, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc668823/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.