Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields

Hidefumi Akiyama; Lin Zhu; Masahiro Yoshita; Changsu Kim; Shaoqiang Chen; Toshimitsu Mochizuki; Yoshihiko Kanemitsu

doi:10.1117/12.2175825

Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields

Hidefumi Akiyama, Lin Zhu, Masahiro Yoshita, Changsu Kim, Shaoqiang Chen, Toshimitsu Mochizuki, Yoshihiko Kanemitsu

School of Communication and Electronic Engineering

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

3 Scopus citations

Abstract

We developed a straightforward method based on detailed balance relations to analyze individual subcells in multi-junction solar cells via measuring absolute electroluminescence quantum yields. This method was applied to characterization of a InGaP/GaAs/Ge 3-junction solar cell for satellite use. In addition to subcell I-V characteristics and internal luminescence yields, we derived balance sheets of energy and carriers, which revealed respective subcell contributions of radiative and nonradiative recombination losses, junction loss, and luminescence coupling. These results provide important diagnosis and feedback to fabrications. We calculated conversion-efficiency limit and optimized bandgap energy in 2-, 3-, and 4-junction tandem solar cells, including finite values of sub-cell internal luminescence quantum yields to account for realistic material qualities in sub-cells. With reference to the measured internal luminescence quantum yields, the theoretical results provide realistic targets of efficiency limits and improved design principles of practical tandem solar cells.

Original language	English
Title of host publication	Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV
Editors	Masakazu Sugiyama, Alexandre Freundlich, Jean-Francois Guillemoles
Publisher	SPIE
ISBN (Electronic)	9781628414486
DOIs	https://doi.org/10.1117/12.2175825
State	Published - 2015
Event	Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV - San Francisco, United States Duration: 10 Feb 2015 → 12 Feb 2015

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9358
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV
Country/Territory	United States
City	San Francisco
Period	10/02/15 → 12/02/15

Keywords

detailed balance
electroluminescence
multi-junction
non-radiative
photovoltaics
quantum yield
solar cell

Access to Document

10.1117/12.2175825

Cite this

Akiyama, H., Zhu, L., Yoshita, M., Kim, C., Chen, S., Mochizuki, T., & Kanemitsu, Y. (2015). Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields. In M. Sugiyama, A. Freundlich, & J.-F. Guillemoles (Eds.), Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV Article 93580B (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9358). SPIE. https://doi.org/10.1117/12.2175825

Akiyama, Hidefumi ; Zhu, Lin ; Yoshita, Masahiro et al. / Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields. Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV. editor / Masakazu Sugiyama ; Alexandre Freundlich ; Jean-Francois Guillemoles. SPIE, 2015. (Proceedings of SPIE - The International Society for Optical Engineering).

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title = "Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields",

abstract = "We developed a straightforward method based on detailed balance relations to analyze individual subcells in multi-junction solar cells via measuring absolute electroluminescence quantum yields. This method was applied to characterization of a InGaP/GaAs/Ge 3-junction solar cell for satellite use. In addition to subcell I-V characteristics and internal luminescence yields, we derived balance sheets of energy and carriers, which revealed respective subcell contributions of radiative and nonradiative recombination losses, junction loss, and luminescence coupling. These results provide important diagnosis and feedback to fabrications. We calculated conversion-efficiency limit and optimized bandgap energy in 2-, 3-, and 4-junction tandem solar cells, including finite values of sub-cell internal luminescence quantum yields to account for realistic material qualities in sub-cells. With reference to the measured internal luminescence quantum yields, the theoretical results provide realistic targets of efficiency limits and improved design principles of practical tandem solar cells.",

keywords = "detailed balance, electroluminescence, multi-junction, non-radiative, photovoltaics, quantum yield, solar cell",

author = "Hidefumi Akiyama and Lin Zhu and Masahiro Yoshita and Changsu Kim and Shaoqiang Chen and Toshimitsu Mochizuki and Yoshihiko Kanemitsu",

note = "Publisher Copyright: {\textcopyright} 2015 SPIE.; Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV ; Conference date: 10-02-2015 Through 12-02-2015",

year = "2015",

doi = "10.1117/12.2175825",

language = "英语",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

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Akiyama, H, Zhu, L, Yoshita, M, Kim, C, Chen, S, Mochizuki, T & Kanemitsu, Y 2015, Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields. in M Sugiyama, A Freundlich & J-F Guillemoles (eds), Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV., 93580B, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9358, SPIE, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV, San Francisco, United States, 10/02/15. https://doi.org/10.1117/12.2175825

Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields. / Akiyama, Hidefumi; Zhu, Lin; Yoshita, Masahiro et al.
Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV. ed. / Masakazu Sugiyama; Alexandre Freundlich; Jean-Francois Guillemoles. SPIE, 2015. 93580B (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9358).

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

TY - GEN

T1 - Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields

AU - Akiyama, Hidefumi

AU - Zhu, Lin

AU - Yoshita, Masahiro

AU - Kim, Changsu

AU - Chen, Shaoqiang

AU - Mochizuki, Toshimitsu

AU - Kanemitsu, Yoshihiko

PY - 2015

Y1 - 2015

N2 - We developed a straightforward method based on detailed balance relations to analyze individual subcells in multi-junction solar cells via measuring absolute electroluminescence quantum yields. This method was applied to characterization of a InGaP/GaAs/Ge 3-junction solar cell for satellite use. In addition to subcell I-V characteristics and internal luminescence yields, we derived balance sheets of energy and carriers, which revealed respective subcell contributions of radiative and nonradiative recombination losses, junction loss, and luminescence coupling. These results provide important diagnosis and feedback to fabrications. We calculated conversion-efficiency limit and optimized bandgap energy in 2-, 3-, and 4-junction tandem solar cells, including finite values of sub-cell internal luminescence quantum yields to account for realistic material qualities in sub-cells. With reference to the measured internal luminescence quantum yields, the theoretical results provide realistic targets of efficiency limits and improved design principles of practical tandem solar cells.

AB - We developed a straightforward method based on detailed balance relations to analyze individual subcells in multi-junction solar cells via measuring absolute electroluminescence quantum yields. This method was applied to characterization of a InGaP/GaAs/Ge 3-junction solar cell for satellite use. In addition to subcell I-V characteristics and internal luminescence yields, we derived balance sheets of energy and carriers, which revealed respective subcell contributions of radiative and nonradiative recombination losses, junction loss, and luminescence coupling. These results provide important diagnosis and feedback to fabrications. We calculated conversion-efficiency limit and optimized bandgap energy in 2-, 3-, and 4-junction tandem solar cells, including finite values of sub-cell internal luminescence quantum yields to account for realistic material qualities in sub-cells. With reference to the measured internal luminescence quantum yields, the theoretical results provide realistic targets of efficiency limits and improved design principles of practical tandem solar cells.

KW - detailed balance

KW - electroluminescence

KW - multi-junction

KW - non-radiative

KW - photovoltaics

KW - quantum yield

KW - solar cell

UR - https://www.scopus.com/pages/publications/84930035548

U2 - 10.1117/12.2175825

DO - 10.1117/12.2175825

M3 - 会议稿件

AN - SCOPUS:84930035548

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV

A2 - Sugiyama, Masakazu

A2 - Freundlich, Alexandre

A2 - Guillemoles, Jean-Francois

PB - SPIE

T2 - Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV

Y2 - 10 February 2015 through 12 February 2015

ER -

Akiyama H, Zhu L, Yoshita M, Kim C, Chen S, Mochizuki T et al. Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields. In Sugiyama M, Freundlich A, Guillemoles JF, editors, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV. SPIE. 2015. 93580B. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2175825

Multi-junction-solar-cell designs and characterizations based on detailed-balance principle and luminescence yields

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