Solar Cells, 2nd Edition

Chapter IC-6

High Efficiency III–V Multijunction Solar Cells

Simon P. Philipps, Frank Dimroth and Andreas W. Bett

Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany

Chapter Outline

1. Introduction

2. Special Aspects of III–V Multijunction Solar Cells

2.1. Fields of Application and Reference Conditions

2.2. Band-Gap Choice

2.3. Band Gap Versus Lattice Constant

2.4. Tunnel Diodes

2.5. Characterisation

2.6. Design of Concentrator Solar Cells

3. III–V Solar Cell Concepts

3.1. Lattice-Matched Triple-Junction Solar Cells on Ge

3.2. Quantum Well Solar Cells

3.3. Upright Metamorphic Growth on Ge

3.4. Inverted Metamorphic Growth

3.5. Bifacial Growth

3.6. III–V on Si

3.7. More Than Three Junctions

3.8. Other Approaches

4. Conclusions

Acknowledgements ...