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Far-infrared response of free charge carriers localized in semiconductor nanoparticles

Nemec, Hynek LU ; Kuzel, Petr and Sundström, Villy LU (2009) In Physical Review B (Condensed Matter and Materials Physics) 79(11).
Abstract
A Monte Carlo method is employed to calculate the dynamical conductivity in the terahertz range of free charge carriers localized in semiconductor nanoparticles. The shape of the conductivity spectrum is essentially determined by the probability of carrier transition through interparticle boundaries and by the ratio of the nanoparticle size and carrier mean free path in the bulk. It is shown that the conductivity spectrum exhibits similar features as the classical extension of the Drude conductivity of electrons proposed by Smith [Phys. Rev. B 64, 155106 (2001)]. We find and discuss the link of this model to the results of our simulations which suggests an interpretation of the phenomenological parameters of the Drude-Smith model.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
nanoparticles, Monte Carlo methods, effects, high-frequency, carrier mean free path, electrical conductivity, particle size, semiconductor materials
in
Physical Review B (Condensed Matter and Materials Physics)
volume
79
issue
11
publisher
American Physical Society
external identifiers
  • wos:000264768900091
  • scopus:63249131181
ISSN
1098-0121
DOI
10.1103/PhysRevB.79.115309
language
English
LU publication?
yes
id
0d7d3d1a-2896-4066-9259-3562de598f7f (old id 1400509)
date added to LUP
2009-06-12 11:22:22
date last changed
2017-11-12 03:34:44
@article{0d7d3d1a-2896-4066-9259-3562de598f7f,
  abstract     = {A Monte Carlo method is employed to calculate the dynamical conductivity in the terahertz range of free charge carriers localized in semiconductor nanoparticles. The shape of the conductivity spectrum is essentially determined by the probability of carrier transition through interparticle boundaries and by the ratio of the nanoparticle size and carrier mean free path in the bulk. It is shown that the conductivity spectrum exhibits similar features as the classical extension of the Drude conductivity of electrons proposed by Smith [Phys. Rev. B 64, 155106 (2001)]. We find and discuss the link of this model to the results of our simulations which suggests an interpretation of the phenomenological parameters of the Drude-Smith model.},
  articleno    = {115309},
  author       = {Nemec, Hynek and Kuzel, Petr and Sundström, Villy},
  issn         = {1098-0121},
  keyword      = {nanoparticles,Monte Carlo methods,effects,high-frequency,carrier mean free path,electrical conductivity,particle size,semiconductor materials},
  language     = {eng},
  number       = {11},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Far-infrared response of free charge carriers localized in semiconductor nanoparticles},
  url          = {http://dx.doi.org/10.1103/PhysRevB.79.115309},
  volume       = {79},
  year         = {2009},
}