Preface ........................................................ xi
Part 1: RENEWABLE ENERGY CONVERSION SYSTEMS
1 Introduction: An Overview of Metal Chalcogenide
Nanostructures for Renewable Energy Applications ............. 3
Ahsanulhaq Qurashi
1.1 Introduction ............................................ 3
1.2 Metal Chalcogenide Nanostructures ....................... 7
1.3 Growth of Metal Chalcogenide Nanostructures ............. 8
1.4 Applications of Metal Chalcogenide Nanostructures ...... 16
1.5 Summary and Future Perspective ......................... 18
References .................................................. 18
2 Renewable Energy and Materials .............................. 23
Muhammad Asif
2.1 Global Energy Scenario ................................. 23
2.2 Role of Renewable Energy in Sustainable Energy
Future ................................................. 25
2.3 Importance of Materials Role in Renewable Energy ....... 27
References .................................................. 30
3 Sustainable Feed Stock and Energy Futures ................... 33
H. Idriss
3.1 Introduction ........................................... 33
3.2 Discussion ............................................. 34
3.2.1 Nuclear Technology .............................. 35
3.2.2 Solar Energy .................................... 36
3.2.3 Hydrogen by Water Splitting ..................... 38
References .................................................. 41
Part 2: SYNTHESIS OF METAL CHALCOGENIDE NANOSTRUCTURES
4 Metal-Selenide Nanostructures: Growth and Properties ........ 45
Ramin Yousefi
4.1 Introduction ........................................... 45
4.2 Growth and Properties of Different Groups of
Metal-Selenide Nanostructures .......................... 48
4.2.1 Metal Selenides from II-VI Semiconductors ....... 48
4.2.2 ZnSe ............................................ 48
4.2.3 CdSe ............................................ 54
4.2.4 HgSe ............................................ 57
4.3 Metal Selenides from III-VI Semiconductors ............. 57
4.3.1 In2Se3 .......................................... 58
4.4 Metal Selenides from IV-VI Semiconductors .............. 61
4.4.1 SnSe ............................................ 61
4.4.1 PbSe ............................................ 62
4.5 Metal Selenides from V-VI Semiconductors ............... 66
4.5.1 Sb2Se3 .......................................... 66
4.5.2 Bi2Se3 .......................................... 68
4.6 Metal Selenides from Transition Metal (TM) ............. 69
4.6.1 Copper Selenide (CuSe, Cu3Se2) .................. 70
4.6.2 Iron Selenide (FeSe2, FeSe) ..................... 71
4.6.3 MoSe2 ........................................... 72
4.6.3 WSe2 ........................................... 74
4.7 Ternary Metal-Selenide Compounds ....................... 75
4.7.1 CuInSe2 (Copper Indium Diselenide) .............. 75
4.7.2 CdSSe ........................................... 76
4.7.3 CdZnSe .......................................... 77
4.8 Summary and Future Outlook ............................. 78
Acknowledgment .............................................. 79
References .................................................. 79
5 Growth Mechanism and Surface Functionalization
of Metal Chalcogenides Nanostructures ....................... 83
Muhammad Nawaz Tahir, Jugal Kishore Sahoo, Faegheh
Hoshyargar, Wolfgang Tremel
5.1 Introduction ........................................... 84
5.1.2 Structure of Layered Transition Metal
Chalcogenides (LTMCs) ........................... 87
5.2 Synthetic Methods for Layered Metal Chalcogenides ...... 89
5.2.1 Laser Ablation .................................. 89
5.2.2 Arc Discharge ................................... 90
5.2.3 Microwave-Induced Plasma ........................ 90
5.2.4 Electron Beam Irradiation ....................... 90
5.2.5 Spray Pyrolysis ................................. 91
5.2.6 Sulfidization with H2S .......................... 91
5.2.7 Hydrothermal .................................... 91
5.2.8 Metal Organic Chemical Vapor Deposition
(MOCVD) Technique ............................... 91
5.2.9 Vapor-Liquid-Solid (VLS) Growth ................. 94
5.2.10 Oxide-to-Sulfide Conversion ..................... 95
5.2.11 Hot-Injection Solution Synthesis ................ 98
5.2.12 Liquid Exfoliation .............................. 99
5.3 Surface Functionalization of Layered Metal
Dichalcogenide Nanostructures ......................... 102
5.3.1 Surface Functionalization Based on
Polymeric Ligands .............................. 102
5.3.2 Surface Functionalization Based on
Pearson Hardness ............................... 107
5.3.3 Surface Functionalization of Metal
Chalcogenides by Silane ........................ 110
5.4 Applications of Inorganic Nanotubes and Fullerenes .... 110
5.4.1 Energy ......................................... 111
References ................................................. 113
6 Optical and Structural Properties of Metal Chalcogenide
Semiconductor Nanostructures ............................... 123
Ihsan-ul-Haq Toor and Shafique Khan
6.1 Optical Properties of Metal Chalcogenides
Semiconductor Nanostructures .......................... 124
6.1.2 Metal Chalcogenide Nanocrystals ................ 126
6.2 Structural Properties and Defects of Metal
Chalcogenide Semiconductor Nanostructures ............. 133
References ................................................. 142
7 Structural and Optical Properties of CdS Nanostructures .... 147
Y. Al-Douri
7.1 Introduction .......................................... 147
7.2 Nanomaterials ......................................... 150
7.3 II-VI Semiconductors .................................. 152
7.4 Sol-Gel Process ....................................... 155
7.5 Structural and Surface Characterization of
Nanostructured CdS .................................... 156
7.6 Optical Properties .................................... 159
7.7 Conclusion ............................................ 161
Acknowledgments ............................................ 162
References ................................................. 162
Part 3: APPLICATIONS OF METAL CHALCOGENIDES NANOSTRUCTURES
8 Metal Sulfide Photocatalysts for Hydrogen Generation
by Water Splitting under Illumination of Solar Light ....... 167
Zhonghai Zhang
8.1 Introduction .......................................... 167
8.2 Photocatalytic Water Splitting on Single Metal
Sulfide ............................................... 169
8.2.1 CdS ............................................ 169
8.2.2 ZnS ............................................ 170
8.2.2 SnS2 ........................................... 172
8.3 Photocatalytic Water Splitting on Multi-metal
Sulfide ............................................... 173
8.3.1 ZnIn2S4 ........................................ 173
8.3.2 CuS/ZnS ........................................ 175
8.3.4 CuGa3S5 ........................................ 176
8.3.5 CdS-MoS2 ....................................... 177
8.3.6 NiS-CdS ........................................ 178
8.3.7 Mn-Cd-S ........................................ 179
8.3.8 PbS/CdS ........................................ 180
8.3.9 AGa2In3S8 (A = Cu or Ag) ....................... 180
8.4 Metal Sulfides Solid-Solution Photocatalysts .......... 180
8.5 Summary and Future Outlook ............................ 184
References ................................................. 184
9 Metal Chalcogenide Hierarchical Nanostructures for
Energy Conversion Devices .................................. 189
Ramin Yousefi, Farid Jamali-Sheini, Ali Khorsand Zak
9.1 Introduction .......................................... 190
9.1.1 Why Metal Chalcogenide Semiconductors Matter
for Energy Conversion .......................... 191
9.2 Main Characteristics of Cd-Chalcogenide Nanocrystals
(CdE; E = S, Se, Те) .................................. 192
9.3 Different Methods to Grow Cd-Chalcogenide
Nanocrystals .......................................... 192
9.3.1 Thermal Evaporation Method to Grow
Cd-Chalcogenide Nanocrystals ................... 192
9.3.2 Chemical Bath Deposition Method to Grow
Cd-Chalcogenide Nanocrystals ................... 205
9.3.3 Electrochemical Deposition Method to Grow
Cd-Chalcogenide Nanocrystals ................... 210
9.3.4 Pulsed Laser Deposition (PLD) Method to Grow
Cd-Chalcogenide Nanocrystals ................... 212
9.4 Solar Energy Conversion ............................... 212
9.4.1 Modeling of Solar Energy Conversion ............ 213
9.4.2 Semiconductor Solar Cells ...................... 216
9.4.3 Hierarchical Branching Nanostructures as
Better Solar Energy Harvesting ................. 218
9.5 Cd-Chalcogenide Nanocrystals as Solar Energy
Conversion ............................................ 219
9.5.1 CdS Nanostructures Solar Cells ................. 219
9.5.2 CdSe Nanostructures Solar Cells ................ 223
9.5.3 CdTe Nanostructures Solar Cells ................ 226
9.6 Summary and Future Outlook ............................ 230
References ................................................. 230
10 Metal Chalcogenide Quantum Dots for Hybrid Solar
Cell Applications .......................................... 233
Mir Waqas Alam and Ahsanulhaq Qurashi
10.1 Introduction .......................................... 233
10.2 Chemical Synthesis of Quantum Dots .................... 235
10.2.1 Single-Step Synthesis of Highly Luminescent
Quantum Dots ................................... 235
10.2.2 Electrochemical Deposition Method .............. 235
10.2.3 Chemical Aerosol Flow Method ................... 236
10.2.4 Chemical Bath Deposition (CBD) ................. 237
10.3 Quantum Dots Solar cell ............................... 238
10.4 Summary and Future Prospects .......................... 243
References ................................................. 243
11 Solar Cell Application of Metal Chalcogenide
Semiconductor Nanostructures ............................... 247
Hongjun Wu
11.1 Introduction .......................................... 247
11.2 Chalcogenide-Based Thin-Film Solar Cells .............. 248
11.3 CdTe-Based Solar Cells ................................ 249
11.4 Cu(In, Ga)(S, Se)2 (CIGS)-Based Solar Cells ........... 251
11.5 Metal Chalcogenides-Based Quantum-Dots-Sensitized
Solar Cells (QDSSCs) .................................. 253
11.6 Hybrid Metal Chalcogenides Nanostructure-Conductive
Polymer Composite Solar Cells ......................... 257
11.7 Conclusions ........................................... 261
References ................................................. 262
12 Chalcogenide-Based Nanodevices for Renewable Energy ........ 269
Y. Al-Douri
12.1 Introduction .......................................... 269
12.2 Renewable Energy ...................................... 272
12.3 Nanodevices ........................................... 274
12.4 Density Functional Theory ............................. 277
12.5 Analytical Studies .................................... 278
12.6 Conclusion ............................................ 284
References ................................................. 285
13 Metal Tellurides Nanostructures for Thermoelectric
Applications ............................................... 289
Salman B. Inayat
13.1 Introduction .......................................... 290
13.2 Thermoelectric Microdevice Fabricated by a MEMS-Like
Electrochemical Process ............................... 290
13.3 Bi2Te3-Based Flexible Micro Thermoelectric
Generator ............................................. 292
13.4 High-Thermoelectric Performance of Nanostructured
Bismuth Antimony Telluride Bulk Alloys ................ 293
13.5 Nano-manufactured Thermoelectric Glass Windows
for Energy Efficient Building Technologies ............ 294
13.6 Conclusion ............................................ 296
References ................................................. 297
Index ......................................................... 299
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