Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Charge trapping effects in photovoltage measurements of (Ga,Mn)As
 
Loading...
Thumbnail Image
research article

Charge trapping effects in photovoltage measurements of (Ga,Mn)As

Granville, S.  
•
Gravier, L.  
•
Kobayashi, G.
Show more
2008
Physica B-Condensed Matter

We report charge trapping effects in a ferromagnetic (Ga,Mn)As thin film observed during measurements of the photovoltage under inhomogeneous illumination conditions. Using a laser diode as the excitation source, the temperature-dependent response has been observed, with open-circuit voltages as high as -1.4V. The unexpectedly large and sharp temperature-de pendent responses are explained in terms of the excitation of photo-generated charges and their trapping in localised states, or separation of the charges across the film/substrate interface. The sharp features found in the signals suggest their possible use for studying localised trapping states in semiconductors using inhomogeneous illumination. (C) 2008 Elsevier B.V. All rights reserved.

  • Details
  • Metrics
Type
research article
DOI
10.1016/j.physb.2008.09.018
Web of Science ID

WOS:000261910300026

Author(s)
Granville, S.  
•
Gravier, L.  
•
Kobayashi, G.
•
Mori, T.
•
Makino, H.
•
Yao, T.
•
Ansermet, J.-Ph.  
Date Issued

2008

Published in
Physica B-Condensed Matter
Volume

403

Start page

4288

End page

4291

Subjects

Diluted magnetic semiconductor

•

Defects

•

Photovoltage

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPMN  
Available on Infoscience
March 26, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/48880
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés