Silicon-Germanium Alloys for Photovoltaic Applications provides a comprehensive look at the use of Silicon-Germanium alloys Si1-xGex in photovoltaics. Different methods of Si1-xGex alloy deposition are reviewed, including their optical and material properties as function of Ge% are summarized, with SiGe use in photovoltaic applications analyzed. Fabrication and characterization of single junction Si1-xGex solar cells on Si using a-Si as emitter is discussed, with a focus on the effect of different Ge%. Further, the book highlights the use Si1-xGex as a template for lattice matched deposition of III-V layers on Si, along with its challenges and benefits, including financial aspects.
Finally, fabrication and characterization of single junction GaAsxP1-x cells on Si via Si1-xGex is discussed, along with the simulation and modeling of graded SiGe layers and experimental model verification.
Author(s): Ammar Nayfeh, Sabina Abdul Hadi
Series: Solar Cell Engineering
Publisher: Elsevier
Year: 2023
Language: English
Pages: 204
City: Amsterdam
Cover
Silicon-Germanium Alloys for Photovoltaic Applications
Copyright
Preface
From authors
From Professor Ammar Nayfeh
From Dr. Sabina Abdul Hadi
9 . Other applications of Si1−xGex
9.1 Introduction
9.2 Si1−xGex in transistor technology
9.3 SiGe for infrared photodetection
9.4 III–V integration using SiGe template
9.5 SiGe in nanotechnology
9.6 Summary
References
8 . Cost benefits of Si1−xGex for III-V growth
8.1 Solar PV cost considerations
8.1.1 Comparative levelized cost of electricity by PV plant
8.2 Multi-junction solar cells cost considerations
8.2.1 III-V/Si dual-junction step-cell
8.2.2 III–V/Si DJ step-cell fabrication process flow used for cost analysis
8.3 Cost analysis
8.3.1 Cost model
8.3.1.1 Cell manufacturing costs
8.3.1.2 Installed PV costs
8.3.2 Cost analysis results
8.3.2.1 Reference scenario
8.3.2.2 Midterm scenario assumption
8.3.2.3 Long-term scenario
8.4 Conclusion
References
7 . Modeling and simulations of Si1-x Gex based solar cells
7.1 Introduction
7.2 Overview of synopsys TCAD tools
7.2.1 Physics section
7.2.2 Optics section
7.2.3 Parameter file
7.2.4 Challenges and uncertainties
7.3 Si1−xGex single-junction cells
7.3.1 a-Si/c-Si1−xGex heterojunction solar cell
7.3.2 n+ a-Si/i a-Si/i c-Si/p c-Si1−xGex/c-Si HIT cell
7.3.3 Summary
7.4 GaAs0.76P0.24/Si1−xGex/Si single-junction solar cells
7.4.1 Simulation model
7.4.2 Simulation results
7.4.3 Summary
7.5 Effect of Si1−xGex graded buffer on bottom Si cell
7.5.1 Simulation model
7.5.2 Simulation results
7.6 Simulation of GaAs0.71P0.29/Si dual-junction step-cell: monolithic and bonded structures
7.6.1 Simulation model
7.6.2 Results: monolithic and bonded GaAs0.71P0.29/Si step-cell
7.7 Other simulations for bonded III-V//Si dual-junction solar cells
7.7.1 Detailed balance efficiency limit for DJ III-V/Si solar cell
7.7.2 Optimizing antireflective coating for GaAs1−yPy/Si DJ solar cell
7.8 Conclusion
References
6 . Lattice matched III–V materials on Si via Si1−xGex buffer layer materials on Si via Si1−xGex buffer layer”. Kindly check an ...
6.1 Introduction
6.2 Lattice mismatch and threading dislocation density
6.3 Optical and electrical properties of GaAs1−yPy deposited on Si1−xGex
6.4 III–V on Si MJ solar cells via Si1−xGex buffer in literature
6.4.1 InGaP/GaAs grown on Si1−xGex/Si substrates
6.4.2 Tandem GaAs0.84P0.16/Si0.18Ge0.82 on Si solar cells
6.4.3 GaAs0.76P0.24 single-junction solar cell on Si1−xGex/Si substrate
6.4.4 Other approaches for III–V on Si tandem cells
6.5 Conclusion
References
5 . History of c-Si1−xGex solar cells
5.1 Introduction
5.2 Research history of c-Si1−xGex based solar cells
5.3 Research history of single crystal c-Si1−xGex
5.4 c-Si1−xGex HIT solar cell
5.5 Summary
References
4 . Si1–xGex deposition and properties
4.1 Challenge
4.2 Growth methods
4.3 Deposition techniques
4.4 Si1−xGex growth solutions
4.5 Optical properties of Si1−xGex
4.6 Conclusion
References
3 . Basics of solar cells
3.1 The photovoltaic effect
3.2 Solar energy
3.3 PV solar cells and solar power generation
3.3.1 Solar cell operation and current–voltage characteristics
3.3.1.1 Short circuit current and open circuit voltage
3.3.1.2 Fill factor
3.3.1.3 Conversion efficiency
3.3.2 Multi-junction solar cell operation
3.3.3 Solar cell design considerations
3.4 Light management for PV solar cells
3.5 Concentrated solar PV
3.6 Nanotechnology in PV solar cells
3.7 Summary
References
2 . Motivation
2.1 Introduction
2.2 Climate change and global warming
2.3 Solar energy and photovoltaics
2.4 Why silicon–germanium in PV?
2.5 Summary
References
1 . About the book
1.1 Book overview
References
Index
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