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Photon upconversion in degenerately sulfur doped InP nanowires.

Mergenthaler, Kilian LU ; Lehmann, Sebastian LU ; Wallentin, J; Zhang, Wei LU ; Borgström, Magnus LU ; Yartsev, Arkady LU and Pistol, Mats-Erik LU (2015) In Nanoscale 7(48). p.20503-20509
Abstract
Radiative recombination in degenerately n-doped InP nanowires is studied for excitation above and below the Fermi energy of the electron gas, using photoluminescence. Laser-induced electron heating is observed, which allows absorption below the Fermi energy. We observe photon upconversion where photo-excited holes recombine with high |k| electrons. This can be attributed to hole scattering to high |k|-values, and the temperature dependence of this process is measured. We show that hole relaxation via phonon scattering can be observed in continuous wave excitation luminescence measurements.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nanoscale
volume
7
issue
48
pages
20503 - 20509
publisher
Royal Society of Chemistry
external identifiers
  • pmid:26585229
  • wos:000365982700021
  • scopus:84948948147
ISSN
2040-3372
DOI
10.1039/c5nr05472a
language
English
LU publication?
yes
id
28a21029-60c7-4236-b8af-3e7f918fc009 (old id 8235094)
date added to LUP
2015-12-14 09:30:23
date last changed
2017-01-01 04:17:53
@article{28a21029-60c7-4236-b8af-3e7f918fc009,
  abstract     = {Radiative recombination in degenerately n-doped InP nanowires is studied for excitation above and below the Fermi energy of the electron gas, using photoluminescence. Laser-induced electron heating is observed, which allows absorption below the Fermi energy. We observe photon upconversion where photo-excited holes recombine with high |k| electrons. This can be attributed to hole scattering to high |k|-values, and the temperature dependence of this process is measured. We show that hole relaxation via phonon scattering can be observed in continuous wave excitation luminescence measurements.},
  author       = {Mergenthaler, Kilian and Lehmann, Sebastian and Wallentin, J and Zhang, Wei and Borgström, Magnus and Yartsev, Arkady and Pistol, Mats-Erik},
  issn         = {2040-3372},
  language     = {eng},
  number       = {48},
  pages        = {20503--20509},
  publisher    = {Royal Society of Chemistry},
  series       = {Nanoscale},
  title        = {Photon upconversion in degenerately sulfur doped InP nanowires.},
  url          = {http://dx.doi.org/10.1039/c5nr05472a},
  volume       = {7},
  year         = {2015},
}