Growth and characterization of string ribbon

Conference · Tue Aug 01 00:00:00 EDT 1995

OSTI ID:415128

Hanoka, J I ^[1]; Behnin, B; Michel, J ^[2]; Symko, M; Sopori, B L ^[3]

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1. Evergreen Solar, Inc., Waltham, MA (United States)
2. Massachusetts Inst. of Technology, Cambridge, MA (United States)
3. National Renewable Energy Lab., Golden, CO (United States)

Evergreen Solar, a new photovoltaics company, makes solar cells and modules based on String Ribbon. String Ribbon is a silicon sheet growth method wherein two high temperature strings are pulled through a shallow melt of silicon and a crystalline silicon sheet then grows between the two strings. The strings serve to stabilize the edges of the growing silicon sheet. The growth process is primarily meniscus controlled and, compared to other silicon ribbon growth methods such as d-web and EFG, relatively insensitive to temperature fluctuations as great as {+-}10{degrees}C. Growth speed is about 2 cm/minute.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• OSTI ID: 415128
• Report Number(s): NREL/SP-413-8250; CONF-9508143-Extd.Absts.; ON: DE95009278; TRN: 96:006512-0012
• Resource Relation: Conference: 5. workshop on the role of impurities and defects in silicon device processing, Copper Mountain, CO (United States), 13-16 Aug 1995; Other Information: PBD: Aug 1995; Related Information: Is Part Of Fifth workshop on the role of impurities and defects in silicon device processing. Extended abstracts; Sopori, B.L.; Luque, A.; Sopori, B.; Swanson, D.; Gee, J.; Kalejs, J.; Jastrzebski, L.; Tan, T.; PB: 160 p.
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
36 MATERIALS SCIENCE
SILICON
CRYSTAL GROWTH
IMPURITIES
PROCESSING
SILICON SOLAR CELLS
ELECTRICAL PROPERTIES
GRAIN SIZE
GRAIN BOUNDARIES