Metal Pillar Interconnection Topology for Bonded Two-Terminal Multijunction III-V Solar Cells

W. E. McMahon; C. T. Lin; J. S. Ward; J. F. Geisz; M. W. Wanlass; J. J. Carapella; W. Olavarría; M. Young; M. A. Steiner; R. M. France; A. E. Kibbler; A. Duda; J. M. Olson; E. E. Perl; D. J. Friedman; J. E. Bowers

doi:10.1109/JPHOTOV.2012.2234208

Metal Pillar Interconnection Topology for Bonded Two-Terminal Multijunction III-V Solar Cells

W. E. McMahon
, C. T. Lin
, J. S. Ward
, J. F. Geisz
, M. W. Wanlass
, J. J. Carapella
, W. Olavarría
, M. Young
, M. A. Steiner
, R. M. France
, A. E. Kibbler
, A. Duda
, J. M. Olson
, E. E. Perl
, D. J. Friedman
, J. E. Bowers

Chemistry and Nanoscience

University of California at Santa Barbara
National Renewable Energy Laboratory

Research output: Contribution to journal › Article › peer-review

17 Scopus Citations

Abstract

Metal-interconnected multijunction solar cells offer one pathway toward efficiencies in excess of 50%. However, if a three-or four-terminal configuration is used, optical losses from the interfacial grid can be considerable. Here, we examine an alternative that provides an optimal interconnection for two-terminal bonded devices. This 'pillar-array' topology is optimized by minimizing the sum of all power losses, including shadow losses and numerically computed electrical losses. Numerical modeling is used to illustrate the benefit of a pillar-array interfacial metallization for some two-terminal configurations.

Original language	American English
Article number	6407636
Pages (from-to)	868-872
Number of pages	5
Journal	IEEE Journal of Photovoltaics
Volume	3
Issue number	2
DOIs	https://doi.org/10.1109/JPHOTOV.2012.2234208 https://doi.org/10.1109/JPHOTOV.2012.2234208
State	Published - 2013

NLR Publication Number

NREL/JA-5200-55334

Keywords

Bonding processes
III-V semiconductor materials
optimization
photovoltaic cells
semiconductor device modeling

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McMahon, W. E., Lin, C. T., Ward, J. S., Geisz, J. F., Wanlass, M. W., Carapella, J. J., Olavarría, W., Young, M., Steiner, M. A., France, R. M., Kibbler, A. E., Duda, A., Olson, J. M., Perl, E. E., Friedman, D. J., & Bowers, J. E. (2013). Metal Pillar Interconnection Topology for Bonded Two-Terminal Multijunction III-V Solar Cells. IEEE Journal of Photovoltaics, 3(2), 868-872. Article 6407636. https://doi.org/10.1109/JPHOTOV.2012.2234208, https://doi.org/10.1109/JPHOTOV.2012.2234208

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title = "Metal Pillar Interconnection Topology for Bonded Two-Terminal Multijunction III-V Solar Cells",

abstract = "Metal-interconnected multijunction solar cells offer one pathway toward efficiencies in excess of 50\%. However, if a three-or four-terminal configuration is used, optical losses from the interfacial grid can be considerable. Here, we examine an alternative that provides an optimal interconnection for two-terminal bonded devices. This 'pillar-array' topology is optimized by minimizing the sum of all power losses, including shadow losses and numerically computed electrical losses. Numerical modeling is used to illustrate the benefit of a pillar-array interfacial metallization for some two-terminal configurations.",

keywords = "Bonding processes, III-V semiconductor materials, optimization, photovoltaic cells, semiconductor device modeling",

author = "McMahon, \{W. E.\} and Lin, \{C. T.\} and Ward, \{J. S.\} and Geisz, \{J. F.\} and Wanlass, \{M. W.\} and Carapella, \{J. J.\} and W. Olavarr{\'i}a and M. Young and Steiner, \{M. A.\} and France, \{R. M.\} and Kibbler, \{A. E.\} and A. Duda and Olson, \{J. M.\} and Perl, \{E. E.\} and Friedman, \{D. J.\} and Bowers, \{J. E.\}",

year = "2013",

doi = "10.1109/JPHOTOV.2012.2234208",

language = "American English",

volume = "3",

pages = "868--872",

journal = "IEEE Journal of Photovoltaics",

issn = "2156-3381",

publisher = "IEEE Electron Devices Society",

number = "2",

}

McMahon, WE, Lin, CT, Ward, JS, Geisz, JF, Wanlass, MW, Carapella, JJ, Olavarría, W, Young, M , Steiner, MA , France, RM, Kibbler, AE, Duda, A, Olson, JM, Perl, EE, Friedman, DJ & Bowers, JE 2013, 'Metal Pillar Interconnection Topology for Bonded Two-Terminal Multijunction III-V Solar Cells', IEEE Journal of Photovoltaics, vol. 3, no. 2, 6407636, pp. 868-872. https://doi.org/10.1109/JPHOTOV.2012.2234208, https://doi.org/10.1109/JPHOTOV.2012.2234208

TY - JOUR

T1 - Metal Pillar Interconnection Topology for Bonded Two-Terminal Multijunction III-V Solar Cells

AU - McMahon, W. E.

AU - Lin, C. T.

AU - Ward, J. S.

AU - Geisz, J. F.

AU - Wanlass, M. W.

AU - Carapella, J. J.

AU - Olavarría, W.

AU - Young, M.

AU - Steiner, M. A.

AU - France, R. M.

AU - Kibbler, A. E.

AU - Duda, A.

AU - Olson, J. M.

AU - Perl, E. E.

AU - Friedman, D. J.

AU - Bowers, J. E.

PY - 2013

Y1 - 2013

N2 - Metal-interconnected multijunction solar cells offer one pathway toward efficiencies in excess of 50%. However, if a three-or four-terminal configuration is used, optical losses from the interfacial grid can be considerable. Here, we examine an alternative that provides an optimal interconnection for two-terminal bonded devices. This 'pillar-array' topology is optimized by minimizing the sum of all power losses, including shadow losses and numerically computed electrical losses. Numerical modeling is used to illustrate the benefit of a pillar-array interfacial metallization for some two-terminal configurations.

AB - Metal-interconnected multijunction solar cells offer one pathway toward efficiencies in excess of 50%. However, if a three-or four-terminal configuration is used, optical losses from the interfacial grid can be considerable. Here, we examine an alternative that provides an optimal interconnection for two-terminal bonded devices. This 'pillar-array' topology is optimized by minimizing the sum of all power losses, including shadow losses and numerically computed electrical losses. Numerical modeling is used to illustrate the benefit of a pillar-array interfacial metallization for some two-terminal configurations.

KW - Bonding processes

KW - III-V semiconductor materials

KW - optimization

KW - photovoltaic cells

KW - semiconductor device modeling

UR - https://www.scopus.com/pages/publications/84875600080

U2 - 10.1109/JPHOTOV.2012.2234208

DO - 10.1109/JPHOTOV.2012.2234208

M3 - Article

AN - SCOPUS:84875600080

SN - 2156-3381

VL - 3

SP - 868

EP - 872

JO - IEEE Journal of Photovoltaics

JF - IEEE Journal of Photovoltaics

IS - 2

M1 - 6407636

ER -

Metal Pillar Interconnection Topology for Bonded Two-Terminal Multijunction III-V Solar Cells

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