Analysis of the meniscus in the horizontal ribbon growth process

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We present a theoretical analysis of the existence and shape of the meniscus in the horizontal ribbon growth (HRG) process. The existence of the meniscus is required to prevent downward growth of the ribbon and its subsequent attachment to the crucible. Assuming that the existence of the meniscus is defined by hydrostatics, ribbon geometry and surface tension, we use the governing Young-Laplace equation to solve analytically for the shape of the meniscus. We then obtain the possible hydrostatically stable shapes that can be achieved in a silicon system, and found a strong effect of the melt height on the pinning conditions of the meniscus to the crucible. We t h e n perform an experimental observation of the meniscus in a prototype prove-of-concept set-up and show the main challenges involved in guaranteeing the stability of the meniscus in a real setting.

Original languageEnglish (US)
Title of host publication39th IEEE Photovoltaic Specialists Conference, PVSC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages516-518
Number of pages3
ISBN (Print)9781479932993
DOIs
StatePublished - 2013
Externally publishedYes
Event39th IEEE Photovoltaic Specialists Conference, PVSC 2013 - Tampa, FL, United States
Duration: Jun 16 2013Jun 21 2013

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371

Other

Other39th IEEE Photovoltaic Specialists Conference, PVSC 2013
Country/TerritoryUnited States
CityTampa, FL
Period6/16/136/21/13

Keywords

  • Capillarity
  • Crystal growth
  • Horizontal ribbon growth
  • Meniscus
  • Photovoltaic cells
  • Silicon
  • Young-Laplace

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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