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Structural and elastic properties of porous silicon

Abstract

We have implemented a modified diffusion-limited aggregation model to simulate the porous silicon structure obtained by electrochemical dissolution. The resulting fractal structures were fully equilibrated using the molecular dynamics method. An analysis of the relaxed structure shows it to be quite stable with the presence of one-, two- and three-coordinated atoms as well as the four-coordinated atoms found in bulk silicon. It is suggested that the different substructures or nanocrystals might be responsible for the observed photoluminescence. ((orig.))
Authors:
Matthai, C C; [1]  Gavartin, J L; [1]  Cafolla, A A [2] 
  1. Department of Physics and Astronomy, University of Wales College of Cardiff, Cardiff CF2 3YB (United Kingdom)
  2. Department of Physics, Dublin City University, Dublin (Ireland)
Publication Date:
Jan 15, 1995
Product Type:
Journal Article
Report Number:
CONF-940575-
Reference Number:
SCA: 360602; 360603; PA: CHF-95:0GA200; EDB-95:084758; SN: 95001397216
Resource Relation:
Journal Name: Thin Solid Films; Journal Volume: 255; Journal Issue: 1-2; Conference: Spring meeting of the European Materials Research Society, Strasbourg (France), 24-27 May 1994; Other Information: PBD: 15 Jan 1995
Subject:
36 MATERIALS SCIENCE; SILICON; ELASTICITY; POROSITY; AGGLOMERATION; DIFFUSION; DISSOLUTION; ELECTROCHEMISTRY; PHOTOLUMINESCENCE; POROUS MATERIALS; FRACTALS
OSTI ID:
54189
Country of Origin:
Switzerland
Language:
English
Other Identifying Numbers:
Journal ID: THSFAP; ISSN 0040-6090; TRN: CH95GA200
Submitting Site:
CHF
Size:
pp. 174-176
Announcement Date:

Citation Formats

Matthai, C C, Gavartin, J L, and Cafolla, A A. Structural and elastic properties of porous silicon. Switzerland: N. p., 1995. Web. doi:10.1016/0040-6090(94)05648-W.
Matthai, C C, Gavartin, J L, & Cafolla, A A. Structural and elastic properties of porous silicon. Switzerland. doi:10.1016/0040-6090(94)05648-W.
Matthai, C C, Gavartin, J L, and Cafolla, A A. 1995. "Structural and elastic properties of porous silicon." Switzerland. doi:10.1016/0040-6090(94)05648-W. https://www.osti.gov/servlets/purl/10.1016/0040-6090(94)05648-W.
@misc{etde_54189,
title = {Structural and elastic properties of porous silicon}
author = {Matthai, C C, Gavartin, J L, and Cafolla, A A}
abstractNote = {We have implemented a modified diffusion-limited aggregation model to simulate the porous silicon structure obtained by electrochemical dissolution. The resulting fractal structures were fully equilibrated using the molecular dynamics method. An analysis of the relaxed structure shows it to be quite stable with the presence of one-, two- and three-coordinated atoms as well as the four-coordinated atoms found in bulk silicon. It is suggested that the different substructures or nanocrystals might be responsible for the observed photoluminescence. ((orig.))}
doi = {10.1016/0040-6090(94)05648-W}
journal = {Thin Solid Films}
issue = {1-2}
volume = {255}
journal type = {AC}
place = {Switzerland}
year = {1995}
month = {Jan}
}