 | CdTe and related compounds; physics, defects, hetero- and nanostructures, crystal growth surfaces and applications. Part I: Physics, CdTe-based nanostructures, CdTe-based semimagnetic semiconductors, defects / ed. by R.Triboulet, P.Siffert. - Oxford: Elsevier, 2010. - xiii, 417 p.: ill. - (European materials research society). - Bibliogr. at the end of the chapters. - Auth. ind.: p.389-412. - Sub. ind.: p.413-417. - ISBN 978-0-08-046409-1
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List of contributors ........................................... ix
Foreword ..................................................... xiii
Chapter I Introduction ....................................... 1
Chapter II Physics ............................................ 5
Chapter IIA Zinc Blende Alloy Materials: Band Structures and
Binding Properties ................................. 7
1 Introduction ................................................. 7
2 Survey of First Principles Status ............................ 8
3 Crystal Structures, Binding, and Elastic Constants ........... 9
4 Concentration Fluctuations .................................. 15
5 Conclusions ................................................. 19
Acknowledgments ................................................ 20
Chapter IIB Optical Phonon Spectra in CdTe Crystals and
Ternary Alloys of CdTe Compounds .................. 22
1 Introduction ................................................ 22
2 Phonon Spectra of CdTe ...................................... 22
3 Localized Modes of Impurities in CdTe ....................... 27
4 Ternary Alloys of the CdTe Compounds ........................ 29
Chapter IIC Band Structure .................................... 38
1 Basic Parameters at 300 К and Lower Temperatures ............ 38
2 Electrical Properties ....................................... 50
Chapter IID Optical Properties of CdTe ........................ 59
1 General Features ............................................ 59
2 Undoped and Doped Cadmium Telluride ......................... 65
3 The Special Case of Chlorine Doping ......................... 76
4 Prospects ................................................... 79
Acknowledgments ................................................ 81
Chapter IIE Mechanical Properties ............................. 85
1 Elasticity Properties ....................................... 85
2 Inelastic Behavior .......................................... 87
3 Fracture Properties ......................................... 93
4 Optoelectronic-Mechanical Couplings ......................... 94
5 Summary ..................................................... 95
Chapter III CdTe-Based Nanostructures ......................... 99
1 Growth ..................................................... 100
2 Electronic Properties ...................................... 114
3 Perspectives ............................................... 128
Acknowledgments ............................................... 129
Chapter IV CdTe-Based Semimagnetic Semiconductors ........... 133
1 Introduction ............................................... 133
2 Crystal Growth Technology of CdMnTe ........................ 134
3 Physical Properties of Bulk CdMnTe ......................... 135
4 Other CdTe-Based Semimagnetic Semiconductors ............... 144
5 Epitaxial Layers and Low-Dimensional Structures ............ 145
6 Conclusions and Prospects .................................. 163
Acknowledgments ............................................... 164
Chapter V Defects .......................................... 169
Chapter VA Extended Defects in CdTe ......................... 171
1 Introduction ............................................... 171
2 Crystallography, Descriptions of the Defect Types and
Defect Phenomena ........................................... 180
3 Defects in Bulk Crystals of CdTe ........................... 208
Acknowledgements .............................................. 221
Literature on Extended Defects in CdTe ........................ 221
Chapter VB Inclusions and Precipitates in CdZnTe
Substrates ....................................... 228
1 Introduction ............................................... 228
2 Second Phase Particles: Formation and Identification ....... 230
3 How to Produce Precipitate and Inclusion Free CdZnTE
Substrates ................................................. 242
4 CdZnTe Wafer Purification .................................. 251
5 Conclusion ................................................. 254
Chapter VC Point Defects .................................... 258
Chapter VC1 Theoretical Calculation of Point Defect
Formation Energies in CdTe ....................... 259
1 Introduction ............................................... 259
2 Formation Energies ......................................... 260
3 Electronic Excitation Energies ............................. 261
4 Defect Free Energies ....................................... 262
5 Prediction of Native Point Defect Densities in CdTe ........ 263
6 Native Defects and their Relationship to Doping ............ 264
7 Future Challenges .......................................... 264
Chapter VC2 Experimental identification of intrinsic point
defects .......................................... 266
Chapter VC2A Characterization of Intrinsic Defect Levels in
CdTe and CdZnTe .................................. 267
1 Introduction ............................................... 267
2 Characterization of Various Defect Levels in CdTe/CZT ...... 269
3 Conclusions ................................................ 289
Acknowledgments ............................................... 289
Chapter VC2B Experimental Identification of the Point
Defects .......................................... 292
1 Introduction ............................................... 292
2 Charged PDS ................................................ 293
Chapter VI Doping ........................................... 309
1 Preliminary Remarks ........................................ 309
2 Impurities in CdTe ......................................... 310
3 General Aspects of Dopant Behaviour ........................ 313
4 Dopants in CdTe ............................................ 317
Chapter VII Impurity Compensation ............................ 363
1 Introduction ............................................... 363
2 Compensated Conductivity ................................... 364
3 Semi-Insulating State ...................................... 372
4 Amphoteric Impurities ...................................... 383
5 Conclusion ................................................. 384
Author index .................................................. 389
Subject index ................................................. 413
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