Development of Highly-Efficient GaInP/Si Tandem Solar Cells

Stephanie Essig; John F. Geisz; Myles A. Steiner; Agnes Merkle; Robby Peibst; Jan Schmidt; Rolf Brendel; Scott Ward; Daniel J. Friedman; Paul Stradins; David L. Young

doi:10.1109/PVSC.2015.7355602

Development of Highly-Efficient GaInP/Si Tandem Solar Cells

Stephanie Essig, John F. Geisz, Myles A. Steiner, Agnes Merkle, Robby Peibst, Jan Schmidt, Rolf Brendel, Scott Ward, Daniel J. Friedman, Paul Stradins, David L. Young

Chemistry and Nanoscience

Research output: Contribution to conference › Paper › peer-review

7 Scopus Citations

Abstract

Dual-junction solar cells consisting of rear-heterojunction GaInP top cells and back-junction, back-contacted crystalline Si bottom cells were fabricated and characterized. Our calculations show that theoretical efficiencies up to 38.9% can be achieved with Si-based tandem devices. In our experiments, the two subcells were fabricated separately and stacked with an index matching fluid. In contrast to conventional mechanically stacked solar cells, that contain two metal grids at the interface, our concept includes a fully back contacted bottom cell which reduces the shadow losses in the device. A 1-sun AM1.5g cumulative efficiency of (26.2 ± 0.6)% has been achieved with this novel GaInP/Si 4-terminal tandem solar cell.

Original language	American English
Number of pages	4
DOIs	https://doi.org/10.1109/PVSC.2015.7355602 https://doi.org/10.1109/PVSC.2015.7355602
State	Published - 14 Dec 2015
Event	42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 - New Orleans, United States Duration: 14 Jun 2015 → 19 Jun 2015

Conference

Conference	42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
Country/Territory	United States
City	New Orleans
Period	14/06/15 → 19/06/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

NREL Publication Number

NREL/CP-5J00-63632

Keywords

III-V semiconductor materials
Multijunction solar cells
silicon

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Essig, S., Geisz, J. F., Steiner, M. A., Merkle, A., Peibst, R., Schmidt, J., Brendel, R., Ward, S., Friedman, D. J., Stradins, P., & Young, D. L. (2015). Development of Highly-Efficient GaInP/Si Tandem Solar Cells. Paper presented at 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015, New Orleans, United States. https://doi.org/10.1109/PVSC.2015.7355602, https://doi.org/10.1109/PVSC.2015.7355602

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abstract = "Dual-junction solar cells consisting of rear-heterojunction GaInP top cells and back-junction, back-contacted crystalline Si bottom cells were fabricated and characterized. Our calculations show that theoretical efficiencies up to 38.9% can be achieved with Si-based tandem devices. In our experiments, the two subcells were fabricated separately and stacked with an index matching fluid. In contrast to conventional mechanically stacked solar cells, that contain two metal grids at the interface, our concept includes a fully back contacted bottom cell which reduces the shadow losses in the device. A 1-sun AM1.5g cumulative efficiency of (26.2 ± 0.6)% has been achieved with this novel GaInP/Si 4-terminal tandem solar cell.",

keywords = "III-V semiconductor materials, Multijunction solar cells, silicon",

author = "Stephanie Essig and Geisz, {John F.} and Steiner, {Myles A.} and Agnes Merkle and Robby Peibst and Jan Schmidt and Rolf Brendel and Scott Ward and Friedman, {Daniel J.} and Paul Stradins and Young, {David L.}",

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Essig, S, Geisz, JF , Steiner, MA, Merkle, A, Peibst, R, Schmidt, J, Brendel, R, Ward, S, Friedman, DJ , Stradins, P & Young, DL 2015, 'Development of Highly-Efficient GaInP/Si Tandem Solar Cells', Paper presented at 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015, New Orleans, United States, 14/06/15 - 19/06/15. https://doi.org/10.1109/PVSC.2015.7355602, https://doi.org/10.1109/PVSC.2015.7355602

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AU - Essig, Stephanie

AU - Geisz, John F.

AU - Steiner, Myles A.

AU - Merkle, Agnes

AU - Peibst, Robby

AU - Schmidt, Jan

AU - Brendel, Rolf

AU - Ward, Scott

AU - Friedman, Daniel J.

AU - Stradins, Paul

AU - Young, David L.

PY - 2015/12/14

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N2 - Dual-junction solar cells consisting of rear-heterojunction GaInP top cells and back-junction, back-contacted crystalline Si bottom cells were fabricated and characterized. Our calculations show that theoretical efficiencies up to 38.9% can be achieved with Si-based tandem devices. In our experiments, the two subcells were fabricated separately and stacked with an index matching fluid. In contrast to conventional mechanically stacked solar cells, that contain two metal grids at the interface, our concept includes a fully back contacted bottom cell which reduces the shadow losses in the device. A 1-sun AM1.5g cumulative efficiency of (26.2 ± 0.6)% has been achieved with this novel GaInP/Si 4-terminal tandem solar cell.

AB - Dual-junction solar cells consisting of rear-heterojunction GaInP top cells and back-junction, back-contacted crystalline Si bottom cells were fabricated and characterized. Our calculations show that theoretical efficiencies up to 38.9% can be achieved with Si-based tandem devices. In our experiments, the two subcells were fabricated separately and stacked with an index matching fluid. In contrast to conventional mechanically stacked solar cells, that contain two metal grids at the interface, our concept includes a fully back contacted bottom cell which reduces the shadow losses in the device. A 1-sun AM1.5g cumulative efficiency of (26.2 ± 0.6)% has been achieved with this novel GaInP/Si 4-terminal tandem solar cell.

KW - III-V semiconductor materials

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KW - silicon

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Y2 - 14 June 2015 through 19 June 2015

ER -

Development of Highly-Efficient GaInP/Si Tandem Solar Cells

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Keywords

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