The Resource Studies on backside Al-contact formation in Si solar cells : fundamental mechanisms : preprint, B. Sopori ... [and others]

Studies on backside Al-contact formation in Si solar cells : fundamental mechanisms : preprint, B. Sopori ... [and others]

Label
Studies on backside Al-contact formation in Si solar cells : fundamental mechanisms : preprint
Title
Studies on backside Al-contact formation in Si solar cells
Title remainder
fundamental mechanisms : preprint
Statement of responsibility
B. Sopori ... [and others]
Contributor
Subject
Language
eng
Summary
We have studied mechanisms of back-contact formation in screen-printed Si solar cells by a fire-through process. An optimum firing temperature profile leads to the formation of a P-Si/P+-Si/ Si-Al eutectic/agglomerated Al at the back contact of a Si solar cell. Variations in the interface properties were found to arise from Al-Si melt instabilities. Experiments were performed to study melt formation. We show that this process is strongly controlled by diffusion of Si into Al. During the ramp-up, a melt is initiated at the Si-Al interface, which subsequently expands into Al and Si. During the ramp-down, the melt freezes, which causes the doped region to grow epitaxially on Si, followed by solidification of the Si-Al eutectic. Any agglomerated (or sintered) Al particles are dispersed with Si. Implications on the performance of the cell are described
Member of
Cataloging source
SOE
Government publication
federal national government publication
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • technical reports
http://library.link/vocab/relatedWorkOrContributorName
  • Sopori, B
  • National Renewable Energy Laboratory (U.S.)
Series statement
Conference paper
Series volume
NREL/CP-520-45001
http://library.link/vocab/subjectName
  • Photovoltaic cells
  • Solar cells
Label
Studies on backside Al-contact formation in Si solar cells : fundamental mechanisms : preprint, B. Sopori ... [and others]
Link
http://purl.access.gpo.gov/GPO/LPS112713
Instantiates
Publication
Note
  • Title from title screen (viewed February 27, 2009)
  • "Presented at the Materials Research Society (MRS), Fall Meeting 2008, Boston, Massachusetts, December 1-5, 2008."
  • "February 2009."
Carrier category
online resource
Carrier category code
cr
Carrier MARC source
rdacarrier
Color
mixed
Content category
text
Content type code
txt
Content type MARC source
rdacontent
Control code
17609109
Dimensions
unknown
Extent
6 pages
Form of item
electronic
Media category
computer
Media MARC source
rdamedia
Media type code
c
Other physical details
digital, PDF file.
Specific material designation
remote
System details
Mode of access: Internet from the NREL web site. Address as of 5/15/09: http://www.nrel.gov/docs/fy09osti/45001.pdf ; current access available via PURL
Label
Studies on backside Al-contact formation in Si solar cells : fundamental mechanisms : preprint, B. Sopori ... [and others]
Link
http://purl.access.gpo.gov/GPO/LPS112713
Publication
Note
  • Title from title screen (viewed February 27, 2009)
  • "Presented at the Materials Research Society (MRS), Fall Meeting 2008, Boston, Massachusetts, December 1-5, 2008."
  • "February 2009."
Carrier category
online resource
Carrier category code
cr
Carrier MARC source
rdacarrier
Color
mixed
Content category
text
Content type code
txt
Content type MARC source
rdacontent
Control code
17609109
Dimensions
unknown
Extent
6 pages
Form of item
electronic
Media category
computer
Media MARC source
rdamedia
Media type code
c
Other physical details
digital, PDF file.
Specific material designation
remote
System details
Mode of access: Internet from the NREL web site. Address as of 5/15/09: http://www.nrel.gov/docs/fy09osti/45001.pdf ; current access available via PURL

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