Four-Junction Wafer-Bonded Concentrator Solar Cells

被引：270

作者：

Dimroth, Frank ^{[1
]}

Tibbits, Thomas N. D. ^{[1
]}

Niemeyer, Markus ^{[1
]}

Predan, Felix ^{[1
]}

Beutel, Paul ^{[1
]}

Karcher, Christian ^{[1
]}

Oliva, Eduard ^{[1
]}

Siefer, Gerald ^{[1
]}

Lackner, David ^{[1
]}

Fuss-Kailuweit, Peter ^{[1
]}

Bett, Andreas W. ^{[1
]}

Krause, Rainer ^{[2
]}

Drazek, Charlotte ^{[2
]}

Guiot, Eric ^{[2
]}

Wasselin, Jocelyne ^{[2
]}

Tauzin, Aurelie ^{[3
]}

Signamarcheix, Thomas ^{[3
]}

机构：

[1] Fraunhofer Inst Solar Energy Syst ISE, D-79110 Freiburg, Germany

[2] SOITEC SA, F-38190 Bernin, France

[3] CEA LETI, F-38054 Grenoble, France

来源：

IEEE JOURNAL OF PHOTOVOLTAICS | 2016年 / 6卷 / 01期

关键词：

Concentrator photovoltaics; high-efficiency; multijunction; photovoltaic cells; GAAS; GAP;

D O I：

10.1109/JPHOTOV.2015.2501729

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The highest solar cell conversion efficiencies are achieved with four-junction devices under concentrated sunlight illumination. Different cell architectures are under development, all targeting an ideal bandgap combination close to 1.9, 1.4, 1.0, and 0.7 eV. Wafer bonding is used in this work to combine materials with a significant lattice mismatch. Three cell architectures are presented using the same two top junctions of GaInP/GaAs but different infrared absorbers based on Germanium, GaSb, or GaInAs on InP. The modeled efficiency potential at 500 suns is in the range of 49-54% for all three devices, but the highest efficiency is expected for the InP-based cell. An efficiency of 46% at 508 suns was already measured by AIST in Japan for a GaInP/GaAs//GaInAsP/GaInAs solar cell and represents the highest independently confirmed efficiency today. Solar cells on Ge and GaSb are in the development phase at Fraunhofer ISE, and the first demonstration of functional devices is presented in this paper.

引用

页码：343 / 349

页数：7

共 35 条

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