Infrared Reflective and Transparent Inverted Metamorphic Triple Junction Solar Cells

John F. Geisz; J. Scott Ward; Anna Duda; Waldo Olavarria; Lynn Gedvilas; Michelle Young; Mark W. Wanlass; Jeff Carapella; Sarah R. Kurtz; Daniel J. Friedman; Manuel J. Romero; Myles A. Steiner

doi:10.1063/1.3509169

Infrared Reflective and Transparent Inverted Metamorphic Triple Junction Solar Cells

John F. Geisz, J. Scott Ward, Anna Duda, Waldo Olavarria, Lynn Gedvilas, Michelle Young, Mark W. Wanlass, Jeff Carapella, Sarah R. Kurtz, Daniel J. Friedman, Manuel J. Romero, Myles A. Steiner

National Renewable Energy Laboratory

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

4 Scopus Citations

Abstract

The infrared (IR) portion of the solar spectrum with photon energies below the lowest bandgap in III-V multijunction photovoltaic devices does not contribute to electrical power and is typically ignored during solar cell design. In a three junction inverted metamorphic multijunction (IMM) solar cell with a 1.0 eV bottom junction, this infrared light makes up 16% of the total power and can be extracted from the cell by reflective or transparent designs. We demonstrate several IMM designs that are about 39% efficient under concentration, allow this IR power to be used elsewhere, and reduce the heat load by about 20%) relative to Ge-based solar cells that are also 40% efficient.

Original language	American English
Pages	11-15
Number of pages	5
DOIs	https://doi.org/10.1063/1.3509169 https://doi.org/10.1063/1.3509169
State	Published - 2010
Event	6th International Conference on Concentrating Photovoltaic, ICPV-6 - Freiburg, Germany Duration: 7 Apr 2010 → 9 Apr 2010

Conference

Conference	6th International Conference on Concentrating Photovoltaic, ICPV-6
Country/Territory	Germany
City	Freiburg
Period	7/04/10 → 9/04/10

NREL Publication Number

NREL/CP-520-47958

Keywords

Back surface reflector
III-V multijunction solar cell
Inverted metamorphic
Photovoltaic
Transparent

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Geisz, J. F., Ward, J. S., Duda, A., Olavarria, W., Gedvilas, L., Young, M., Wanlass, M. W., Carapella, J., Kurtz, S. R., Friedman, D. J., Romero, M. J., & Steiner, M. A. (2010). Infrared Reflective and Transparent Inverted Metamorphic Triple Junction Solar Cells. 11-15. Paper presented at 6th International Conference on Concentrating Photovoltaic, ICPV-6, Freiburg, Germany. https://doi.org/10.1063/1.3509169, https://doi.org/10.1063/1.3509169

@conference{c2d1486448d945f4b0c1a80c104b605c,

title = "Infrared Reflective and Transparent Inverted Metamorphic Triple Junction Solar Cells",

abstract = "The infrared (IR) portion of the solar spectrum with photon energies below the lowest bandgap in III-V multijunction photovoltaic devices does not contribute to electrical power and is typically ignored during solar cell design. In a three junction inverted metamorphic multijunction (IMM) solar cell with a 1.0 eV bottom junction, this infrared light makes up 16% of the total power and can be extracted from the cell by reflective or transparent designs. We demonstrate several IMM designs that are about 39% efficient under concentration, allow this IR power to be used elsewhere, and reduce the heat load by about 20%) relative to Ge-based solar cells that are also 40% efficient.",

keywords = "Back surface reflector, III-V multijunction solar cell, Inverted metamorphic, Photovoltaic, Transparent",

author = "Geisz, {John F.} and Ward, {J. Scott} and Anna Duda and Waldo Olavarria and Lynn Gedvilas and Michelle Young and Wanlass, {Mark W.} and Jeff Carapella and Kurtz, {Sarah R.} and Friedman, {Daniel J.} and Romero, {Manuel J.} and Steiner, {Myles A.}",

year = "2010",

doi = "10.1063/1.3509169",

language = "American English",

pages = "11--15",

note = "6th International Conference on Concentrating Photovoltaic, ICPV-6 ; Conference date: 07-04-2010 Through 09-04-2010",

}

Geisz, JF, Ward, JS, Duda, A, Olavarria, W, Gedvilas, L, Young, M, Wanlass, MW, Carapella, J, Kurtz, SR , Friedman, DJ, Romero, MJ & Steiner, MA 2010, 'Infrared Reflective and Transparent Inverted Metamorphic Triple Junction Solar Cells', Paper presented at 6th International Conference on Concentrating Photovoltaic, ICPV-6, Freiburg, Germany, 7/04/10 - 9/04/10 pp. 11-15. https://doi.org/10.1063/1.3509169, https://doi.org/10.1063/1.3509169

TY - CONF

T1 - Infrared Reflective and Transparent Inverted Metamorphic Triple Junction Solar Cells

AU - Geisz, John F.

AU - Ward, J. Scott

AU - Duda, Anna

AU - Olavarria, Waldo

AU - Gedvilas, Lynn

AU - Young, Michelle

AU - Wanlass, Mark W.

AU - Carapella, Jeff

AU - Kurtz, Sarah R.

AU - Friedman, Daniel J.

AU - Romero, Manuel J.

AU - Steiner, Myles A.

PY - 2010

Y1 - 2010

N2 - The infrared (IR) portion of the solar spectrum with photon energies below the lowest bandgap in III-V multijunction photovoltaic devices does not contribute to electrical power and is typically ignored during solar cell design. In a three junction inverted metamorphic multijunction (IMM) solar cell with a 1.0 eV bottom junction, this infrared light makes up 16% of the total power and can be extracted from the cell by reflective or transparent designs. We demonstrate several IMM designs that are about 39% efficient under concentration, allow this IR power to be used elsewhere, and reduce the heat load by about 20%) relative to Ge-based solar cells that are also 40% efficient.

AB - The infrared (IR) portion of the solar spectrum with photon energies below the lowest bandgap in III-V multijunction photovoltaic devices does not contribute to electrical power and is typically ignored during solar cell design. In a three junction inverted metamorphic multijunction (IMM) solar cell with a 1.0 eV bottom junction, this infrared light makes up 16% of the total power and can be extracted from the cell by reflective or transparent designs. We demonstrate several IMM designs that are about 39% efficient under concentration, allow this IR power to be used elsewhere, and reduce the heat load by about 20%) relative to Ge-based solar cells that are also 40% efficient.

KW - Back surface reflector

KW - III-V multijunction solar cell

KW - Inverted metamorphic

KW - Photovoltaic

KW - Transparent

UR - http://www.scopus.com/inward/record.url?scp=78649308568&partnerID=8YFLogxK

U2 - 10.1063/1.3509169

DO - 10.1063/1.3509169

M3 - Paper

AN - SCOPUS:78649308568

SP - 11

EP - 15

T2 - 6th International Conference on Concentrating Photovoltaic, ICPV-6

Y2 - 7 April 2010 through 9 April 2010

ER -

Infrared Reflective and Transparent Inverted Metamorphic Triple Junction Solar Cells

Abstract

Conference

NREL Publication Number

Keywords

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