4 Energy band gap variations in chalcogenide compound semiconductors: influence of crystal structure, structural disorder, and compositional variations
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Susan Schorr
Abstract
The high efficient thin-film solar cell technologies are based on chalcogenide compound semiconductor absorber layers. The aim of this chapter is to give an overview of the crystal structure, structural disorder, and intrinsic point defects of some important ternary and quaternary chalcogenide semiconductors applied successfully in thin-film photovoltaic (PV) technologies. The experimentally determined band gap energy, an important parameter of a PV device, is correlated to structural features in these semiconductor materials demonstrating the importance of the crystal structure for material properties.
Abstract
The high efficient thin-film solar cell technologies are based on chalcogenide compound semiconductor absorber layers. The aim of this chapter is to give an overview of the crystal structure, structural disorder, and intrinsic point defects of some important ternary and quaternary chalcogenide semiconductors applied successfully in thin-film photovoltaic (PV) technologies. The experimentally determined band gap energy, an important parameter of a PV device, is correlated to structural features in these semiconductor materials demonstrating the importance of the crystal structure for material properties.
Chapters in this book
- Frontmatter I
- Foreword V
- Contents VII
- List of contributors IX
- 1 In situ tools for the exploration of structure–property relationships 1
- 2 Understanding stacking disorder in layered functional materials using powder diffraction 55
- Crystal chemistry investigations on photovoltaic chalcogenides 93
- 4 Energy band gap variations in chalcogenide compound semiconductors: influence of crystal structure, structural disorder, and compositional variations 123
- 5 Halide semiconductors: symmetry relations in the perovskite type and beyond 153
- 6 Structural ordering in ceria-based suboxides applied for thermochemical water splitting 185
- 7 The influence of electrode material crystal structure on battery performance 217
- 8 Hydroborates as novel solid-state electrolytes 265
- 9 Crystallographic challenges in corrosion research 291
- 10 Crystallographic diffraction techniques and density functional theory: two sides of the same coin? 317
- 11 Crystallographic deviants: modelling symmetry shirkers 339
- Index 355
Chapters in this book
- Frontmatter I
- Foreword V
- Contents VII
- List of contributors IX
- 1 In situ tools for the exploration of structure–property relationships 1
- 2 Understanding stacking disorder in layered functional materials using powder diffraction 55
- Crystal chemistry investigations on photovoltaic chalcogenides 93
- 4 Energy band gap variations in chalcogenide compound semiconductors: influence of crystal structure, structural disorder, and compositional variations 123
- 5 Halide semiconductors: symmetry relations in the perovskite type and beyond 153
- 6 Structural ordering in ceria-based suboxides applied for thermochemical water splitting 185
- 7 The influence of electrode material crystal structure on battery performance 217
- 8 Hydroborates as novel solid-state electrolytes 265
- 9 Crystallographic challenges in corrosion research 291
- 10 Crystallographic diffraction techniques and density functional theory: two sides of the same coin? 317
- 11 Crystallographic deviants: modelling symmetry shirkers 339
- Index 355
