Advanced Manufacturing Concepts for Crystalline Silicon Solar Cells: Phosphorous Doping and Contact Opening Process

Abstract:

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In this work, we report on the last investigation of POP (selective Phosphorous doping and contact Opening Process) in crystalline silicon solar cells. For the industrial solar cells, it must be very highly doped to decrease the high-contact resistance and not very shallow so that it is not perforated during paste firing, which would short-circuit the junction. We made improvement involves making separate diffusions for the different regions since the requirements are so different: a heavily doped and thick region under the contacts, a thin and lowly doped region under the passivating layer. Furthermore we opened the metal contact area to make a narrow grid lines simultaneously. As a result we could increase fill factor and reduce contact resistance by industrial process.

Info:

Periodical:

Solid State Phenomena (Volumes 124-126)

Edited by:

Byung Tae Ahn, Hyeongtag Jeon, Bo Young Hur, Kibae Kim and Jong Wan Park

Pages:

923-926

DOI:

10.4028/www.scientific.net/SSP.124-126.923

Citation:

S. W. Park et al., "Advanced Manufacturing Concepts for Crystalline Silicon Solar Cells: Phosphorous Doping and Contact Opening Process", Solid State Phenomena, Vols. 124-126, pp. 923-926, 2007

Online since:

June 2007

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Price:

$35.00

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