Existence and static stability of the meniscus in horizontal ribbon growth

German A. Oliveros, Seetharaman Sridhar, B. Erik Ydstie

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We present existence and stability conditions of the meniscus in the horizontal ribbon growth process. Assuming that the existence of the meniscus is defined by capillarity, we determine analytically the shape of the meniscus and an explicit expression for the equilibrium height. We then calculate the stability of the feasible curves using a variational approach, as well as the conditions under which the meniscus remained pinned to the corner of the crucible. We find that the single-valued curves describing the menisci are stable with respect to weak variations, and that for a given ribbon geometry, the existence of the meniscus depends on the use of operating parameters (such as the pulling angle and the melt height) that enhances the conditions under which the meniscus stays pinned to the corner of the crucible. The hydrostatically feasible configurations place a part or the entire meniscus above the melt level.

Original languageEnglish (US)
Pages (from-to)96-105
Number of pages10
JournalJournal of Crystal Growth
Volume411
DOIs
StatePublished - Feb 1 2015
Externally publishedYes

Keywords

  • A1. Capillarity
  • A2. Edge-defined film fed growth
  • A2. Growth from melt
  • A2. Horizontal ribbon growth
  • B2. Semiconducting silicon
  • B3. Solar cells

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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