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Extended high temperature Al gettering for improvement and homogenization of minority carrier diffusion lengths in multicrystalline Si

Publication ,  Journal Article
Joshi, SM; Gösele, UM; Tan, TY
Published in: Solar Energy Materials and Solar Cells
December 15, 2001

Multicrystalline Si for photovoltaic applications is a very inhomogeneous material with localized regions of high dislocation density and large impurity and precipitate concentrations which limit solar cell efficiency by acting as carrier recombination sites. Due to slow dissolution of precipitates in multicrystalline Si, these regions cannot be improved by conventional P and Al gettering treatments for removal of metal impurities which give good results for single crystal Si. It is shown that an extended high temperature Al gettering treatment can improve minority carrier diffusion lengths in these low quality regions and homogenize the electrical properties of multicrystalline Si wafers. © 2001 Elsevier Science B.V. All rights reserved.

Duke Scholars

Published In

Solar Energy Materials and Solar Cells

DOI

ISSN

0927-0248

Publication Date

December 15, 2001

Volume

70

Issue

2

Start / End Page

231 / 238

Related Subject Headings

  • Energy
  • 51 Physical sciences
  • 40 Engineering
  • 34 Chemical sciences
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences
 

Citation

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Joshi, S. M., Gösele, U. M., & Tan, T. Y. (2001). Extended high temperature Al gettering for improvement and homogenization of minority carrier diffusion lengths in multicrystalline Si. Solar Energy Materials and Solar Cells, 70(2), 231–238. https://doi.org/10.1016/S0927-0248(01)00029-0
Joshi, S. M., U. M. Gösele, and T. Y. Tan. “Extended high temperature Al gettering for improvement and homogenization of minority carrier diffusion lengths in multicrystalline Si.” Solar Energy Materials and Solar Cells 70, no. 2 (December 15, 2001): 231–38. https://doi.org/10.1016/S0927-0248(01)00029-0.
Joshi SM, Gösele UM, Tan TY. Extended high temperature Al gettering for improvement and homogenization of minority carrier diffusion lengths in multicrystalline Si. Solar Energy Materials and Solar Cells. 2001 Dec 15;70(2):231–8.
Joshi, S. M., et al. “Extended high temperature Al gettering for improvement and homogenization of minority carrier diffusion lengths in multicrystalline Si.” Solar Energy Materials and Solar Cells, vol. 70, no. 2, Dec. 2001, pp. 231–38. Scopus, doi:10.1016/S0927-0248(01)00029-0.
Joshi SM, Gösele UM, Tan TY. Extended high temperature Al gettering for improvement and homogenization of minority carrier diffusion lengths in multicrystalline Si. Solar Energy Materials and Solar Cells. 2001 Dec 15;70(2):231–238.
Journal cover image

Published In

Solar Energy Materials and Solar Cells

DOI

ISSN

0927-0248

Publication Date

December 15, 2001

Volume

70

Issue

2

Start / End Page

231 / 238

Related Subject Headings

  • Energy
  • 51 Physical sciences
  • 40 Engineering
  • 34 Chemical sciences
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences