Paper Title:
Study of Internal versus External Gettering of Iron during Slow Cooling Processes for Silicon Solar Cell Fabrication
  Abstract

The e ect of slow cooling after di erent high temperature treatments on the in- terstitial iron concentration and on the electron lifetime of p-type mc-Si wafers has been in- vestigated. The respective impacts of internal relaxation gettering and external segregation gettering of metal impurities during an extended phosphorous di usion gettering are studied. It is shown that the enhanced reduction of interstitial Fe during extended P-gettering is due to an enhanced segregation gettering while faster impurities like Cu and Ni are possibly reduced due to an internal gettering e ect.

  Info
Periodical
Solid State Phenomena (Volumes 156-158)
Edited by
M. Kittler and H. Richter
Pages
387-393
DOI
10.4028/www.scientific.net/SSP.156-158.387
Citation
J. Hofstetter, J. F. Lelièvre, C. del Cañizo, A. Luque, "Study of Internal versus External Gettering of Iron during Slow Cooling Processes for Silicon Solar Cell Fabrication", Solid State Phenomena, Vols. 156-158, pp. 387-393, 2010
Online since
October 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Daniel Macdonald, Thomas Roth, L.J. Geerligs, Andres Cuevas
Abstract:Changes in the concentration of interstitial iron in multicrystalline silicon wafers after high temperature annealing (900°C) have been...
519
Authors: Abdelazize Laades, K. Lauer, C. Maier, D. Alber, M. Bähr, J. Nutsch, J. Lossen, A. Lawerenz
Abstract:We investigated the impact of using low quality feedstock such as recycled silicon and simplified pulling condition on the performance of CZ...
381
Authors: Jasmin Hofstetter, Jean François Lelièvre, David P. Fenning, Mariana I. Bertoni, Tonio Buonassisi, Carlos del Cañizo
Chapter 5: Point Defects in Si
Abstract:The evolution of Fe-related defects is simulated for di erent P di usion gettering (PDG) processes which are applied during silicon solar...
158
Authors: Jasmin Hofstetter, David P. Fenning, Douglas M. Powell, Ashley E. Morishige, Tonio Buonassisi
I. Defect engineering in silicon solar cells
Abstract:In multicrystalline silicon for photovoltaic applications, high concentrations of iron are usually found, which deteriorate material...
15
Authors: George Martins, Ruy S. Bonilla, Toby Burton, P. MacDonald, Peter R. Wilshaw
Chapter 2: Passivation and Defect Studies in Solar Cells
Abstract:In this work we use Saw Damage Gettering (SDG) in combination with emitter formation to improve the minority carrier lifetime of highly...
126