Published March 2012 | Version v1
Journal article

57Fe charge states in MC-Si solar cells under light illumination after GeV-implantation of 57Mn

  • 1. Shizuoka Institute of Science and Technology (Japan)
  • 2. Tokyo Institute of Technology, Department of Physics (Japan)
  • 3. RIKEN Nishina Center (Japan)
  • 4. Leuven University, Institute for Nuclear and Radiation Physics, Physics Department (Belgium)

Description

Immediately after the GeV-implantation of 57Mn nuclei produced by the RIKEN-RIBF facility, 57Mn/57Fe Mössbauer spectra in Si-solar cells are measured under light illumination. Comparing with the spectrum of p-type multi-crystalline-Si, the broad spectra of the solar cell under operation can be analyzed as a superposition of interstitial and substitutional Fe components with different charge states. The charge states of Fe impurities are created by the excess carrier injection followed by a directional carrier flow in the p-n junction. The present results provide us a possibility to clarify the carrier trapping process at the Fe impurities in Si-solar cells.

Additional details

Identifiers

Publishing Information

Journal Title
Hyperfine Interactions
Journal Volume
204
Journal Issue
1-3
Journal Page Range
p. 133-137
ISSN
0304-3843
CODEN
HYINDN

Conference

Title
65. Yamada conference; ICAM 2011: 31. international conference on the applications of the Moessbauer effect
Acronym
ICAME 2010
Dates
25-30 Sep 2011
Place
Kobe (Japan)

Optional Information

Copyright
Copyright (c) 2012 Springer Science+Business Media B.V.