Progress Toward an Advanced Four-Subcell Inverted Metamorphic Multi-Junction (IMM) Solar Cell

Daniel Friedman; Jeffrey Carapella; Carl Osterwald; Scott Ahrenkiel; Manuel Romero; Mark Wanlass

doi:10.1002/pip.2609

Progress Toward an Advanced Four-Subcell Inverted Metamorphic Multi-Junction (IMM) Solar Cell

Daniel Friedman, Jeffrey Carapella, Carl Osterwald, Scott Ahrenkiel, Manuel Romero, Mark Wanlass

Chemistry and Nanoscience

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

7 Scopus Citations

Abstract

We report progress on the development of an advanced four-subcell IMM CPV solar cell that is designed for extremely high conversion efficiency under realistic concentrator operating conditions. Practical considerations allowing the design to mitigate problems related to Al-containing alloys, lattice mismatch, non-ideal short-wavelength response, and reflection losses are described. Performance modeling is used to guide the choice of optimal subcell band gaps for the new IMM cell. Early experimental efforts to develop and implement the new design are described and discussed.

Original language	American English
Pages (from-to)	139-149
Number of pages	11
Journal	Progress in Photovoltaics: Research and Applications
Volume	24
Issue number	2
DOIs	https://doi.org/10.1002/pip.2609 https://doi.org/10.1002/pip.2609
State	Published - 2016

Bibliographical note

Publisher Copyright:
© Copyright 2015 John Wiley & Sons, Ltd.

NREL Publication Number

NREL/JA-5J00-60173

Keywords

high efficiency
III-V
multijunction solar cells

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AU - Romero, Manuel

AU - Wanlass, Mark

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AB - We report progress on the development of an advanced four-subcell IMM CPV solar cell that is designed for extremely high conversion efficiency under realistic concentrator operating conditions. Practical considerations allowing the design to mitigate problems related to Al-containing alloys, lattice mismatch, non-ideal short-wavelength response, and reflection losses are described. Performance modeling is used to guide the choice of optimal subcell band gaps for the new IMM cell. Early experimental efforts to develop and implement the new design are described and discussed.

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KW - multijunction solar cells

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Progress Toward an Advanced Four-Subcell Inverted Metamorphic Multi-Junction (IMM) Solar Cell

Abstract

Bibliographical note

NREL Publication Number

Keywords

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