Investigation of Radiative Coupling from InGaAsP Quantum Wells for Improving End-of-Life (EOL) Efficiency in Multijunction Solar Cells

Geoffrey K. Bradshaw; Mitsul Kacharia; Emily Kessler-Lewis; David Wilt; Stephen J. Polly; Colin J. Mann; Hyunseong Kum; Seth M. Hubbard

doi:10.1109/PVSC40753.2019.8981220

Investigation of Radiative Coupling from InGaAsP Quantum Wells for Improving End-of-Life (EOL) Efficiency in Multijunction Solar Cells

Geoffrey K. Bradshaw, Mitsul Kacharia, Emily Kessler-Lewis, David Wilt, Stephen J. Polly, Colin J. Mann, Hyunseong Kum, Seth M. Hubbard

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

GaInP/(In)GaAs/Ge multijunction solar cells have been state-of-practice for power generation on spacecraft for over a decade but there are still potential improvements for endof-life (EOL) efficiency. Radiative coupling between GaInP and (In)GaAs subcells is not typically considered in the EOL design of space solar cells because radiative recombination in the GaInP is effectively quenched by radiation-induced damage. This paper shows that quantum well structures incorporated into a GaInP subcell may be less sensitive to radiation damage, thereby enabling radiative coupling between subcells at EOL and providing a current boost in the (In)GaAs subcell to improve EOL efficiency.

Original language	English
Title of host publication	2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2385-2389
Number of pages	5
ISBN (Electronic)	9781728104942
DOIs	https://doi.org/10.1109/PVSC40753.2019.8981220
Publication status	Published - 2019 Jun
Event	46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States Duration: 2019 Jun 16 → 2019 Jun 21

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)	0160-8371

Conference

Conference	46th IEEE Photovoltaic Specialists Conference, PVSC 2019
Country/Territory	United States
City	Chicago
Period	19/6/16 → 19/6/21

Bibliographical note

Funding Information:
This work was funded by the Air Force Research Laboratory – Space Vehicles Directorate. Many thanks to Alex Haas for his valuable conversations.

Publisher Copyright:
© 2019 IEEE.

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/PVSC40753.2019.8981220

Cite this

Bradshaw, G. K., Kacharia, M., Kessler-Lewis, E., Wilt, D., Polly, S. J., Mann, C. J., Kum, H., & Hubbard, S. M. (2019). Investigation of Radiative Coupling from InGaAsP Quantum Wells for Improving End-of-Life (EOL) Efficiency in Multijunction Solar Cells. In 2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019 (pp. 2385-2389). [8981220] (Conference Record of the IEEE Photovoltaic Specialists Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC40753.2019.8981220

Bradshaw, Geoffrey K. ; Kacharia, Mitsul ; Kessler-Lewis, Emily et al. / Investigation of Radiative Coupling from InGaAsP Quantum Wells for Improving End-of-Life (EOL) Efficiency in Multijunction Solar Cells. 2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 2385-2389 (Conference Record of the IEEE Photovoltaic Specialists Conference).

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title = "Investigation of Radiative Coupling from InGaAsP Quantum Wells for Improving End-of-Life (EOL) Efficiency in Multijunction Solar Cells",

abstract = "GaInP/(In)GaAs/Ge multijunction solar cells have been state-of-practice for power generation on spacecraft for over a decade but there are still potential improvements for endof-life (EOL) efficiency. Radiative coupling between GaInP and (In)GaAs subcells is not typically considered in the EOL design of space solar cells because radiative recombination in the GaInP is effectively quenched by radiation-induced damage. This paper shows that quantum well structures incorporated into a GaInP subcell may be less sensitive to radiation damage, thereby enabling radiative coupling between subcells at EOL and providing a current boost in the (In)GaAs subcell to improve EOL efficiency.",

author = "Bradshaw, {Geoffrey K.} and Mitsul Kacharia and Emily Kessler-Lewis and David Wilt and Polly, {Stephen J.} and Mann, {Colin J.} and Hyunseong Kum and Hubbard, {Seth M.}",

note = "Funding Information: This work was funded by the Air Force Research Laboratory – Space Vehicles Directorate. Many thanks to Alex Haas for his valuable conversations. Publisher Copyright: {\textcopyright} 2019 IEEE.; 46th IEEE Photovoltaic Specialists Conference, PVSC 2019 ; Conference date: 16-06-2019 Through 21-06-2019",

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doi = "10.1109/PVSC40753.2019.8981220",

language = "English",

series = "Conference Record of the IEEE Photovoltaic Specialists Conference",

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Bradshaw, GK, Kacharia, M, Kessler-Lewis, E, Wilt, D, Polly, SJ, Mann, CJ, Kum, H & Hubbard, SM 2019, Investigation of Radiative Coupling from InGaAsP Quantum Wells for Improving End-of-Life (EOL) Efficiency in Multijunction Solar Cells. in 2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019., 8981220, Conference Record of the IEEE Photovoltaic Specialists Conference, Institute of Electrical and Electronics Engineers Inc., pp. 2385-2389, 46th IEEE Photovoltaic Specialists Conference, PVSC 2019, Chicago, United States, 19/6/16. https://doi.org/10.1109/PVSC40753.2019.8981220

Investigation of Radiative Coupling from InGaAsP Quantum Wells for Improving End-of-Life (EOL) Efficiency in Multijunction Solar Cells. / Bradshaw, Geoffrey K.; Kacharia, Mitsul; Kessler-Lewis, Emily et al.
2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 2385-2389 8981220 (Conference Record of the IEEE Photovoltaic Specialists Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Wilt, David

AU - Polly, Stephen J.

AU - Mann, Colin J.

AU - Kum, Hyunseong

AU - Hubbard, Seth M.

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AB - GaInP/(In)GaAs/Ge multijunction solar cells have been state-of-practice for power generation on spacecraft for over a decade but there are still potential improvements for endof-life (EOL) efficiency. Radiative coupling between GaInP and (In)GaAs subcells is not typically considered in the EOL design of space solar cells because radiative recombination in the GaInP is effectively quenched by radiation-induced damage. This paper shows that quantum well structures incorporated into a GaInP subcell may be less sensitive to radiation damage, thereby enabling radiative coupling between subcells at EOL and providing a current boost in the (In)GaAs subcell to improve EOL efficiency.

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Bradshaw GK, Kacharia M, Kessler-Lewis E, Wilt D, Polly SJ, Mann CJ et al. Investigation of Radiative Coupling from InGaAsP Quantum Wells for Improving End-of-Life (EOL) Efficiency in Multijunction Solar Cells. In 2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 2385-2389. 8981220. (Conference Record of the IEEE Photovoltaic Specialists Conference). doi: 10.1109/PVSC40753.2019.8981220

Investigation of Radiative Coupling from InGaAsP Quantum Wells for Improving End-of-Life (EOL) Efficiency in Multijunction Solar Cells

Abstract

Publication series

Conference

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

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