Numerical analysis of the relation between dislocation density and residual strain in silicon ingots used in solar cells

S. Nakano, B. Gao, K. Jiptner, H. Harada, Y. Miyamura, T. Sekiguchi, M. Fukuzawa, K. Kakimoto

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We have developed a three dimensional Haasen-Alexander-Sumino model to investigate the distribution of dislocation density and residual strain in Si crystals and compared the calculation results with experimental data performed in mono-like and multicrystalline silicon ingots. The results show that the residual strain in a multicrystal is lower than in a mono-like crystal, whereas the dislocation density in the multicrystal is higher than that in the mono-like crystal. This phenomenon is due to the relation between dislocation density and residual strain caused by the difference of activated slip systems in a mono-like crystal and a multicrystal.

Original languageEnglish
Pages (from-to)130-134
Number of pages5
JournalJournal of Crystal Growth
Volume474
DOIs
Publication statusPublished - 2017 Sept 15
Externally publishedYes

Keywords

  • A1. Defects
  • A1. Directional solidification
  • A2. Seed crystals
  • B3. Solar cells

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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