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 language | English (US) |
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Pages (from-to) | 96-105 |
Number of pages | 10 |
Journal | Journal of Crystal Growth |
Volume | 411 |
DOIs | |
State | Published - Feb 1 2015 |
Externally published | Yes |
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