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Title: Evidence for oxide formation from the single and multiphoton excitation of a porous silicon surface or silicon “nanoparticles”

Abstract

Potential oxidation as monitored by single and multiphoton excitation and associated with the laser induced photoluminescence (PL) from silicon nanoparticles and a porous silicon (PS) surface is considered in the light of recent in situ observations of the photoluminescence process coupled with detailed quantum chemical modeling of the silanone based oxyhydrides. Here, the enhanced oxidation of PS surface bound SiH x moieties as they undergo multiphoton excitation through the SiH x stretch vibrational ladder to the quasicontinuum is suggested as a source of the visible PL produced in the 600–800 nm region. Vibrational-to-electronic energy transfer within the SiH x manifold, as previously suggested, is thought to be unlikely. However, the formation of OSiHx constituencies on the PS surface as these are associated with the silanone-based silicon oxyhydrides would appear to be significant. Evidence for these oxyhydrides may also be apparent in the laser induced PL from silicon nanoparticles. All experimental observations are explained without envoking quantum confinement.

Authors:
 [1];  [2]
  1. Georgia Inst. of Technology, Atlanta, GA (United States)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1562671
Report Number(s):
PNNL-SA-28778
Journal ID: ISSN 0021-8979
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 83; Journal Issue: 11; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Gole, James L., and Dixon, David A. Evidence for oxide formation from the single and multiphoton excitation of a porous silicon surface or silicon “nanoparticles”. United States: N. p., 1998. Web. doi:10.1063/1.367464.
Gole, James L., & Dixon, David A. Evidence for oxide formation from the single and multiphoton excitation of a porous silicon surface or silicon “nanoparticles”. United States. doi:10.1063/1.367464.
Gole, James L., and Dixon, David A. Fri . "Evidence for oxide formation from the single and multiphoton excitation of a porous silicon surface or silicon “nanoparticles”". United States. doi:10.1063/1.367464. https://www.osti.gov/servlets/purl/1562671.
@article{osti_1562671,
title = {Evidence for oxide formation from the single and multiphoton excitation of a porous silicon surface or silicon “nanoparticles”},
author = {Gole, James L. and Dixon, David A.},
abstractNote = {Potential oxidation as monitored by single and multiphoton excitation and associated with the laser induced photoluminescence (PL) from silicon nanoparticles and a porous silicon (PS) surface is considered in the light of recent in situ observations of the photoluminescence process coupled with detailed quantum chemical modeling of the silanone based oxyhydrides. Here, the enhanced oxidation of PS surface bound SiHx moieties as they undergo multiphoton excitation through the SiHx stretch vibrational ladder to the quasicontinuum is suggested as a source of the visible PL produced in the 600–800 nm region. Vibrational-to-electronic energy transfer within the SiHx manifold, as previously suggested, is thought to be unlikely. However, the formation of OSiHx constituencies on the PS surface as these are associated with the silanone-based silicon oxyhydrides would appear to be significant. Evidence for these oxyhydrides may also be apparent in the laser induced PL from silicon nanoparticles. All experimental observations are explained without envoking quantum confinement.},
doi = {10.1063/1.367464},
journal = {Journal of Applied Physics},
number = 11,
volume = 83,
place = {United States},
year = {1998},
month = {3}
}

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Works referenced in this record:

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