Quantum Dot Display Science and Technology
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COMPREHENSIVE REFERENCE PRESENTING ALL ASPECTS OF QUANTUM DOT-BASED DISPLAY TECHNOLOGIES IN FOUR PARTS, SUPPORTED WITH PEDAGOGICAL FEATURES Quantum Dot Display Science and Technology presents all aspects of quantum dot (QD) based display technologies, divided into four general topic areas: the basic science of quantum dots, QD photoluminescent technologies, QD electroluminescent technologies, and other display related QD technologies. Composed of 14 chapters, this book includes a list of pedagogical features such as tables, illustrations, process flow charts, and more to provide active learning for the reader. This book also includes information on future quantum dot displays and the major milestones in the field. Quantum Dot Display Science and Technology discusses topics including:
- The basic physics and photophysics of QD, explaining why QD can offer better color and higher brightness
- QD material systems and compositional families as well as principles and practices of QD synthesis
- Quantum dot enhancement film and quantum dot color conversion for LCDs, OLEDs, and LEDs
- Quantum dot electroluminescent displays and QD-LED panel processes based on ink-jet printing and lithography
- QD for lighting and photodetector applications
- Future outlook for QD displays
Inhaltsverzeichnis
Series Editor's Foreword xv
About the Editors xvii
Preface xix
Acknowledgments xxi
1 Physics and Photophysics of Quantum Dots for Display Applications 1
Einav Scharf, Uri Banin
1. 1 Introduction 1
1. 2 Quantum Confinement and Band Structure 1
1. 3 Absorption Spectrum 4
1. 4 Charge Carrier Dynamics 6
1. 5 Surface Passivation and Heterostructure Band Alignment 8
1. 6 Emission Intermittency (Blinking) and Stability 9
1. 7 Emission Linewidth 12
1. 8 Dimensionality Effects 15
1. 9 Collective Emission 16
1. 10 Summary and Outlook 18
References 18
2 Quantum Dot Material Systems, Compositional Families 23
Sudarsan Tamang, Karl David Wegner, Peter Reiss
2. 1 Introduction 23
2. 2 II-VI Semiconductor QDs 25
2. 2. 1 Cadmium Chalcogenide QDs 25
2. 2. 2 Zn Chalcogenide QDs 27
2. 3 III-V Semiconductor QDs: Overview and Properties 35
2. 3. 1 Introduction 35
2. 3. 2 Indium Phosphide Quantum Dots 37
2. 3. 3 Indium Arsenide Quantum Dots 47
2. 4 More Recent Families of QDs 50
2. 4. 1 I-III-VI Chalcopyrite-type QDs 50
2. 4. 2 Metal Halide Perovskite NCs 54
2. 5 Summary and Outlook 60
References 62
3 Principles and Practices for Quantum Dots Synthesis 81
Derrick Allan Taylor, Justice Agbeshie Teku, Jong-Soo Lee
3. 1 Introduction 81
3. 2 Principles of Colloidal Quantum Dot Synthesis 84
3. 2. 1 Basic Chemistry of Quantum Dot Synthesis 84
3. 2. 2 Innovatory Experimental Techniques for Monitoring Evolving Nanocrystals 93
3. 2. 3 Colloidal Quantum Dots (II-VI and III-V) 94
3. 3 Practices of Colloidal Quantum Dot Synthesis 95
3. 3. 1 Practices 98
3. 3. 2 Post-synthetic Methods 104
3. 4 Summary and Outlook 112
References 114
4 Quantum Dot Enhancement Film 131
Zhong Sheng Luo, Jeff Yurek
4. 1 Introduction 131
4. 2 Understanding Color for Displays 132
4. 2. 1 Measuring Display Color Performance: Chromaticity Gamut 134
4. 2. 2 NTSC 1953 in Practice 135
4. 2. 3 LCDs and Display Color in the 1990s and 2000s 136
4. 3 Color in the Modern Era - Defining the Ultimate Visual Experience 138
4. 3. 1 Color Volume 139
4. 3. 2 High Dynamic Range 141
4. 3. 3 Clarity 142
4. 4 Quantum Dots for QDEF Applications 143
4. 4. 1 Quantum Dot Wavelength Tunability 144
4. 4. 2 Narrower Spectrum for Better Color 145
4. 5 Quantum Dot Enhancement Film 146
4. 5. 1 Origins of the QDEF Concept 146
4. 5. 2 Design Requirements 149
4. 5. 3 Resin System 150
4. 5. 4 Barrier Film 150
4. 5. 5 QD Coating 152
4. 5. 6 QDEF Fabrication Process 152
4. 5. 7 QDEF in a Display 154
4. 5. 8 Heavy Metals and Environmental Regulation 155
4. 6 Barrierless Quantum Dot Enhancement Film 156
4. 6. 1 QD Requirements for Barrierless QDEF 157
4. 6. 2 Construction and Manufacturing 158
4. 6. 3 Application 158
4. 7 Quantum Dot Diffuser Plate 159
4. 7. 1 Quantum Dot Requirement 159
4. 7. 2 Construction and Manufacturing 160
4. 7. 3 Application 161
4. 8 Summary and Outlook 161
References 162
5 Quantum Dot Color Conversion for Liquid Crystal Display 167
Zhifu li, Ji li, Yanan Wang, Hanming li
5. 1 Introduction 167
5. 2 Thin-film Transistor Liquid Crystal Display 168
5. 2. 1 Color Perception of Human Eyes 168
5. 2. 2 Basic Structure and Principle of Liquid Crystal Display 169
5. 2. 3 Advantages of Quantum Dot Liquid Crystal Display 172
5. 3 Quantum Dot Color Conversion for Liquid Crystal Display 173
5. 3. 1 Quantum Dot Backlight 173
5. 3. 2 Quantum Dot Color Filter 178
5. 4 Summary and Prospects 191
References 193
6 Quantum Dot (QD) Color Conversion for QD-Organic Light-Emitting Diode 197
Keunchan Oh, Hyeokjin Lee, Gakseok Lee, Taehyung Hwang
6. 1 Introduction to Quantum Dot-Organic Light-emitting Diode 197
6. 2 Color Conversion Materials 199
6. 2. 1 Quantum Dots in QD-OLED 200
6. 2. 2 Optical Scattering Particle 204
6. 2. 3 Surface Ligand Modification 207
6. 2. 4 Photo Enhancement and Degradation 210
6. 3 Color Conversion Architecture 212
6. 3. 1 Bank 212
6. 3. 2 Color Filter 214
6. 3. 3 Optical Recycling Layer 215
6. 3. 4 Reflection 217
6. 4 Inkjet Printing of CCM 218
6. 4. 1 Inkjet Equipment and Inspection 219
6. 4. 2 Rheological Properties of Colloidal QD Ink 220
6. 4. 3 Large Area Uniformity 224
6. 5 Conclusion and Future Work 225
References 226
7 Quantum Dots for Augmented Reality 231
Jason Hartlove
7. 1 Why Quantum Dots for Augmented Reality? 231
7. 2 Augmented Reality Glasses: The Need for High-efficiency Small Emitters 232
7. 2. 1 ARG Requirements 232
7. 2. 2 Display Engine Approaches 235
7. 3 QD Color Conversion Performance and Reliability Requirements 247
7. 3. 1 Quantum Dot PLQY 247
7. 3. 2 Quantum Dot Absorption 248
7. 3. 3 Flux Stability 249
7. 4 Summary and Outlook 250
References 251
8 CdSe-based Quantum Dot Light-emitting Diodes 253
Yiran Yan, Longjia Wu, Weiran Cao, Xiaolin Yan
8. 1 Overview of Quantum Dot Light-emitting Diode Development 253
8. 2 Functional Layers 255
8. 2. 1 QD-emitting Layer 255
8. 2. 2 Hole Transport Layer 260
8. 2. 3 Electron Transport Layer 262
8. 3 Aging Mechanism 264
8. 3. 1 Degradation Mechanism 264
8. 3. 2 Positive Aging Mechanism 272
8. 4 Summary and Outlook 277
References 277
9 Quantum Dot Light-emitting Device Materials, Device Physics, and Fabrication: Cadmium-free 283
Igor Coropceanu, Heeyoung Jung, Christian Ippen
9. 1 Introduction 283
9. 1. 1 Benefits of Quantum Dot Light-emitting Devices 283
9. 1. 2 Why Cd-free QD-LED? 284
9. 2 Survey of Materials 285
9. 2. 1 General Considerations 285
9. 2. 2 Indium Phosphide 286
9. 2. 3 Zinc Telluride Selenide 290
9. 2. 4 I-iii-vi 293
9. 3 Surface Chemistry 293
9. 3. 1 General Introduction to NC - Organic Interface 293
9. 3. 2 Inorganic Termination 293
9. 3. 3 Anchoring Group 294
9. 3. 4 Ligand Body 294
9. 3. 5 Organic Ligand Exchange for Improved Charge Transport 295
9. 3. 6 Inorganic and Mixed Organic/Inorganic Surface Treatments 296
9. 4 Device Physics and Fabrication 298
9. 4. 1 Device Architectures 298
9. 4. 2 Evaluation Metrics 300
9. 4. 3 HTL Optimizations 301
9. 4. 4 ETL Optimizations 302
9. 4. 5 Positive Aging 302
9. 4. 6 Degradation Mechanisms 303
9. 5 Patterning for Display Fabrication 305
9. 5. 1 General Considerations 305
9. 5. 2 Optical Methods 306
9. 5. 3 Inkjet Printing 308
9. 6 Summary and Outlook 309
9. 6. 1 Performance Development of Cd-free vs. Cd-based QD-LEDs 309
9. 6. 2 What is Still Missing for Cd-free QD-LEDs? 311
References 311
10 Quantum Dot Light-emitting Diode Panel Process: Inkjet Printing 323
Dong Jin Kang, Changhee Lee
10. 1 Inkjet Printing Technology for QD Patterning in Full-color Displays 323
10. 2 Ink Formulation for Inkjet-Printed QD-LED Displays 325
10. 2. 1 Quantum Dot Inks 325
10. 2. 2 Organic Charge-transport Material Ink 328
10. 2. 3 Inorganic Charge-transport Material Inks 331
10. 3 Inkjet Printing Processes and Device Performance of QD-LED Display Panels 331
10. 3. 1 Device Structure and Operation Mechanism of QD-LEDs 331
10. 3. 2 Device Characteristics of QD-LEDs 333
10. 3. 3 Inkjet Printing Processes for Fabricating QD-LED Display Panels 335
10. 3. 4 Drying and Thermal Baking Processes for QD-LED Panels 339
10. 3. 5 Device Performance of Inkjet-printed QD-LED Display Panels 342
10. 4 Current Challenges in Inkjet Printing for QD-LED Display and Future Outlook 347
10. 5 Summary and Outlook 348
References 349
11 Photolithographic Patterning Techniques for Quantum Dot Light-emitting Diodes 355
Yanzhao Li, Shaoyong Lu, Zhuo Chen, Zhuo Li, Xiangbing Fan, Peng Bai, Haoyu Yang, Dong li
11. 1 Introduction 355
11. 2 Photolithography Technology 357
11. 2. 1 Basics of Photolithography 357
11. 2. 2 Photolithographic Patterning of Quantum Dots 359
11. 3 Indirect Photoresist-assisted Photolithographic Patterning of Quantum Dots 360
11. 3. 1 Protective Photoresists 360
11. 3. 2 Sacrificial Photoresists 363
11. 4 Direct Photoresist-free Photolithographic Patterning of Quantum Dots 366
11. 4. 1 Patterning Using Native Ligands 367
11. 4. 2 Patterning Through Ligand Exchange 374
11. 4. 3 Photolithographic Patterning for Maintaining Photophysical Properties of Quantum Dots 377
11. 5 Industrial Progress 381
11. 6 Summary and Outlook 382
References 383
12 Quantum Dots in Light-emitting Diodes for General Lighting 387
Benjamin Mangum, Juanita Kurtin
12. 1 Benefits of Quantum Dots for Illumination 387
12. 2 Illumination Landscape: The Need for Narrow Emitters 387
12. 2. 1 Background: Blackbody Emitters vs. LEDs 387
12. 2. 2 Making White LEDs: Spectral Engineering 390
12. 2. 3 Background: Color Metrics 392
12. 2. 4 The Ideal Spectrum and Theoretical Maximums 395
12. 3 SSL Devices and Solution Development 399
12. 3. 1 Power Classes 399
12. 3. 2 Quantum Dots for Illumination 400
12. 3. 3 Form Factor 401
12. 3. 4 Pairing QDs with Other Phosphors 403
12. 4 QD Performance and Reliability Requirements 405
12. 4. 1 QD Performance Requirements: PLQY 406
12. 4. 2 QD Performance Requirements: FWHM 406
12. 4. 3 QD Performance Requirements: Flux Droop 407
12. 4. 4 Performance Requirements: Thermal Droop 408
12. 4. 5 Reliability Testing: LM80 testing 408
12. 4. 6 Reliability Testing: Color Point Shift 409
12. 4. 7 Reliability Testing: Lumen Maintenance 410
12. 5 Summary and Outlook 411
References 412
13 Quantum Dot Photodetector Technology 415
Pawel Malinowski, Itai Lieberman, Jonathan S. Steckel, Andras Pattantyus-Abraham
13. 1 Introduction to Sensing with Quantum Dots 415
13. 1. 1 Photoconductive Devices 416
13. 1. 2 Photodiodes 416
13. 1. 3 Phototransistors 417
13. 1. 4 Other Light Sensing Techniques 418
13. 2 Figures of Merit for QD Sensors 418
13. 2. 1 QD Films and Stacks 418
13. 2. 2 Photodetector Performance Metrics 419
13. 2. 3 Image Sensors Performance Metrics 423
13. 2. 4 Reliability 425
13. 3 QD Photodetector Materials and Devices 426
13. 3. 1 QD Core and Photodetectors 426
13. 3. 2 QDPD Comparison 431
13. 3. 3 Evolution of QD Image Sensors 431
13. 4 Conclusion and Outlook 434
13. 4. 1 Use Cases and Applications 434
13. 4. 2 Outlook 438
References 439
14 Future of Quantum Dots in Displays and Beyond 445
Peter Palomaki
14. 1 Introduction 445
14. 2 Implementation of QDs Past, Present, and Future 446
14. 2. 1 Past Technologies 446
14. 2. 2 Present Technologies 447
14. 2. 3 Future Technologies 447
14. 3 QD Materials 452
14. 3. 1 CdSe and InP 452
14. 3. 2 Perovskite 453
14. 3. 3 I-III-VI QDs 455
14. 3. 4 Nitrides 456
14. 3. 5 Material Usage 456
14. 3. 6 Anisotropic QD Systems 458
14. 3. 7 Stability 460
14. 4 Optical Properties 462
14. 4. 1 Linewidth 462
14. 4. 2 Light Absorption 465
14. 4. 3 Spectral Engineering and Re-absorption 465
14. 4. 4 QDs and Phosphors 466
14. 4. 5 Four or More Primaries 467
14. 5 Regulatory 468
14. 6 Non-display Applications 470
14. 6. 1 Solar Spectrum Engineering 470
14. 6. 2 QD Solar Cells 471
14. 7 Summary 472
References 473
Index 477
About the Editors xvii
Preface xix
Acknowledgments xxi
1 Physics and Photophysics of Quantum Dots for Display Applications 1
Einav Scharf, Uri Banin
1. 1 Introduction 1
1. 2 Quantum Confinement and Band Structure 1
1. 3 Absorption Spectrum 4
1. 4 Charge Carrier Dynamics 6
1. 5 Surface Passivation and Heterostructure Band Alignment 8
1. 6 Emission Intermittency (Blinking) and Stability 9
1. 7 Emission Linewidth 12
1. 8 Dimensionality Effects 15
1. 9 Collective Emission 16
1. 10 Summary and Outlook 18
References 18
2 Quantum Dot Material Systems, Compositional Families 23
Sudarsan Tamang, Karl David Wegner, Peter Reiss
2. 1 Introduction 23
2. 2 II-VI Semiconductor QDs 25
2. 2. 1 Cadmium Chalcogenide QDs 25
2. 2. 2 Zn Chalcogenide QDs 27
2. 3 III-V Semiconductor QDs: Overview and Properties 35
2. 3. 1 Introduction 35
2. 3. 2 Indium Phosphide Quantum Dots 37
2. 3. 3 Indium Arsenide Quantum Dots 47
2. 4 More Recent Families of QDs 50
2. 4. 1 I-III-VI Chalcopyrite-type QDs 50
2. 4. 2 Metal Halide Perovskite NCs 54
2. 5 Summary and Outlook 60
References 62
3 Principles and Practices for Quantum Dots Synthesis 81
Derrick Allan Taylor, Justice Agbeshie Teku, Jong-Soo Lee
3. 1 Introduction 81
3. 2 Principles of Colloidal Quantum Dot Synthesis 84
3. 2. 1 Basic Chemistry of Quantum Dot Synthesis 84
3. 2. 2 Innovatory Experimental Techniques for Monitoring Evolving Nanocrystals 93
3. 2. 3 Colloidal Quantum Dots (II-VI and III-V) 94
3. 3 Practices of Colloidal Quantum Dot Synthesis 95
3. 3. 1 Practices 98
3. 3. 2 Post-synthetic Methods 104
3. 4 Summary and Outlook 112
References 114
4 Quantum Dot Enhancement Film 131
Zhong Sheng Luo, Jeff Yurek
4. 1 Introduction 131
4. 2 Understanding Color for Displays 132
4. 2. 1 Measuring Display Color Performance: Chromaticity Gamut 134
4. 2. 2 NTSC 1953 in Practice 135
4. 2. 3 LCDs and Display Color in the 1990s and 2000s 136
4. 3 Color in the Modern Era - Defining the Ultimate Visual Experience 138
4. 3. 1 Color Volume 139
4. 3. 2 High Dynamic Range 141
4. 3. 3 Clarity 142
4. 4 Quantum Dots for QDEF Applications 143
4. 4. 1 Quantum Dot Wavelength Tunability 144
4. 4. 2 Narrower Spectrum for Better Color 145
4. 5 Quantum Dot Enhancement Film 146
4. 5. 1 Origins of the QDEF Concept 146
4. 5. 2 Design Requirements 149
4. 5. 3 Resin System 150
4. 5. 4 Barrier Film 150
4. 5. 5 QD Coating 152
4. 5. 6 QDEF Fabrication Process 152
4. 5. 7 QDEF in a Display 154
4. 5. 8 Heavy Metals and Environmental Regulation 155
4. 6 Barrierless Quantum Dot Enhancement Film 156
4. 6. 1 QD Requirements for Barrierless QDEF 157
4. 6. 2 Construction and Manufacturing 158
4. 6. 3 Application 158
4. 7 Quantum Dot Diffuser Plate 159
4. 7. 1 Quantum Dot Requirement 159
4. 7. 2 Construction and Manufacturing 160
4. 7. 3 Application 161
4. 8 Summary and Outlook 161
References 162
5 Quantum Dot Color Conversion for Liquid Crystal Display 167
Zhifu li, Ji li, Yanan Wang, Hanming li
5. 1 Introduction 167
5. 2 Thin-film Transistor Liquid Crystal Display 168
5. 2. 1 Color Perception of Human Eyes 168
5. 2. 2 Basic Structure and Principle of Liquid Crystal Display 169
5. 2. 3 Advantages of Quantum Dot Liquid Crystal Display 172
5. 3 Quantum Dot Color Conversion for Liquid Crystal Display 173
5. 3. 1 Quantum Dot Backlight 173
5. 3. 2 Quantum Dot Color Filter 178
5. 4 Summary and Prospects 191
References 193
6 Quantum Dot (QD) Color Conversion for QD-Organic Light-Emitting Diode 197
Keunchan Oh, Hyeokjin Lee, Gakseok Lee, Taehyung Hwang
6. 1 Introduction to Quantum Dot-Organic Light-emitting Diode 197
6. 2 Color Conversion Materials 199
6. 2. 1 Quantum Dots in QD-OLED 200
6. 2. 2 Optical Scattering Particle 204
6. 2. 3 Surface Ligand Modification 207
6. 2. 4 Photo Enhancement and Degradation 210
6. 3 Color Conversion Architecture 212
6. 3. 1 Bank 212
6. 3. 2 Color Filter 214
6. 3. 3 Optical Recycling Layer 215
6. 3. 4 Reflection 217
6. 4 Inkjet Printing of CCM 218
6. 4. 1 Inkjet Equipment and Inspection 219
6. 4. 2 Rheological Properties of Colloidal QD Ink 220
6. 4. 3 Large Area Uniformity 224
6. 5 Conclusion and Future Work 225
References 226
7 Quantum Dots for Augmented Reality 231
Jason Hartlove
7. 1 Why Quantum Dots for Augmented Reality? 231
7. 2 Augmented Reality Glasses: The Need for High-efficiency Small Emitters 232
7. 2. 1 ARG Requirements 232
7. 2. 2 Display Engine Approaches 235
7. 3 QD Color Conversion Performance and Reliability Requirements 247
7. 3. 1 Quantum Dot PLQY 247
7. 3. 2 Quantum Dot Absorption 248
7. 3. 3 Flux Stability 249
7. 4 Summary and Outlook 250
References 251
8 CdSe-based Quantum Dot Light-emitting Diodes 253
Yiran Yan, Longjia Wu, Weiran Cao, Xiaolin Yan
8. 1 Overview of Quantum Dot Light-emitting Diode Development 253
8. 2 Functional Layers 255
8. 2. 1 QD-emitting Layer 255
8. 2. 2 Hole Transport Layer 260
8. 2. 3 Electron Transport Layer 262
8. 3 Aging Mechanism 264
8. 3. 1 Degradation Mechanism 264
8. 3. 2 Positive Aging Mechanism 272
8. 4 Summary and Outlook 277
References 277
9 Quantum Dot Light-emitting Device Materials, Device Physics, and Fabrication: Cadmium-free 283
Igor Coropceanu, Heeyoung Jung, Christian Ippen
9. 1 Introduction 283
9. 1. 1 Benefits of Quantum Dot Light-emitting Devices 283
9. 1. 2 Why Cd-free QD-LED? 284
9. 2 Survey of Materials 285
9. 2. 1 General Considerations 285
9. 2. 2 Indium Phosphide 286
9. 2. 3 Zinc Telluride Selenide 290
9. 2. 4 I-iii-vi 293
9. 3 Surface Chemistry 293
9. 3. 1 General Introduction to NC - Organic Interface 293
9. 3. 2 Inorganic Termination 293
9. 3. 3 Anchoring Group 294
9. 3. 4 Ligand Body 294
9. 3. 5 Organic Ligand Exchange for Improved Charge Transport 295
9. 3. 6 Inorganic and Mixed Organic/Inorganic Surface Treatments 296
9. 4 Device Physics and Fabrication 298
9. 4. 1 Device Architectures 298
9. 4. 2 Evaluation Metrics 300
9. 4. 3 HTL Optimizations 301
9. 4. 4 ETL Optimizations 302
9. 4. 5 Positive Aging 302
9. 4. 6 Degradation Mechanisms 303
9. 5 Patterning for Display Fabrication 305
9. 5. 1 General Considerations 305
9. 5. 2 Optical Methods 306
9. 5. 3 Inkjet Printing 308
9. 6 Summary and Outlook 309
9. 6. 1 Performance Development of Cd-free vs. Cd-based QD-LEDs 309
9. 6. 2 What is Still Missing for Cd-free QD-LEDs? 311
References 311
10 Quantum Dot Light-emitting Diode Panel Process: Inkjet Printing 323
Dong Jin Kang, Changhee Lee
10. 1 Inkjet Printing Technology for QD Patterning in Full-color Displays 323
10. 2 Ink Formulation for Inkjet-Printed QD-LED Displays 325
10. 2. 1 Quantum Dot Inks 325
10. 2. 2 Organic Charge-transport Material Ink 328
10. 2. 3 Inorganic Charge-transport Material Inks 331
10. 3 Inkjet Printing Processes and Device Performance of QD-LED Display Panels 331
10. 3. 1 Device Structure and Operation Mechanism of QD-LEDs 331
10. 3. 2 Device Characteristics of QD-LEDs 333
10. 3. 3 Inkjet Printing Processes for Fabricating QD-LED Display Panels 335
10. 3. 4 Drying and Thermal Baking Processes for QD-LED Panels 339
10. 3. 5 Device Performance of Inkjet-printed QD-LED Display Panels 342
10. 4 Current Challenges in Inkjet Printing for QD-LED Display and Future Outlook 347
10. 5 Summary and Outlook 348
References 349
11 Photolithographic Patterning Techniques for Quantum Dot Light-emitting Diodes 355
Yanzhao Li, Shaoyong Lu, Zhuo Chen, Zhuo Li, Xiangbing Fan, Peng Bai, Haoyu Yang, Dong li
11. 1 Introduction 355
11. 2 Photolithography Technology 357
11. 2. 1 Basics of Photolithography 357
11. 2. 2 Photolithographic Patterning of Quantum Dots 359
11. 3 Indirect Photoresist-assisted Photolithographic Patterning of Quantum Dots 360
11. 3. 1 Protective Photoresists 360
11. 3. 2 Sacrificial Photoresists 363
11. 4 Direct Photoresist-free Photolithographic Patterning of Quantum Dots 366
11. 4. 1 Patterning Using Native Ligands 367
11. 4. 2 Patterning Through Ligand Exchange 374
11. 4. 3 Photolithographic Patterning for Maintaining Photophysical Properties of Quantum Dots 377
11. 5 Industrial Progress 381
11. 6 Summary and Outlook 382
References 383
12 Quantum Dots in Light-emitting Diodes for General Lighting 387
Benjamin Mangum, Juanita Kurtin
12. 1 Benefits of Quantum Dots for Illumination 387
12. 2 Illumination Landscape: The Need for Narrow Emitters 387
12. 2. 1 Background: Blackbody Emitters vs. LEDs 387
12. 2. 2 Making White LEDs: Spectral Engineering 390
12. 2. 3 Background: Color Metrics 392
12. 2. 4 The Ideal Spectrum and Theoretical Maximums 395
12. 3 SSL Devices and Solution Development 399
12. 3. 1 Power Classes 399
12. 3. 2 Quantum Dots for Illumination 400
12. 3. 3 Form Factor 401
12. 3. 4 Pairing QDs with Other Phosphors 403
12. 4 QD Performance and Reliability Requirements 405
12. 4. 1 QD Performance Requirements: PLQY 406
12. 4. 2 QD Performance Requirements: FWHM 406
12. 4. 3 QD Performance Requirements: Flux Droop 407
12. 4. 4 Performance Requirements: Thermal Droop 408
12. 4. 5 Reliability Testing: LM80 testing 408
12. 4. 6 Reliability Testing: Color Point Shift 409
12. 4. 7 Reliability Testing: Lumen Maintenance 410
12. 5 Summary and Outlook 411
References 412
13 Quantum Dot Photodetector Technology 415
Pawel Malinowski, Itai Lieberman, Jonathan S. Steckel, Andras Pattantyus-Abraham
13. 1 Introduction to Sensing with Quantum Dots 415
13. 1. 1 Photoconductive Devices 416
13. 1. 2 Photodiodes 416
13. 1. 3 Phototransistors 417
13. 1. 4 Other Light Sensing Techniques 418
13. 2 Figures of Merit for QD Sensors 418
13. 2. 1 QD Films and Stacks 418
13. 2. 2 Photodetector Performance Metrics 419
13. 2. 3 Image Sensors Performance Metrics 423
13. 2. 4 Reliability 425
13. 3 QD Photodetector Materials and Devices 426
13. 3. 1 QD Core and Photodetectors 426
13. 3. 2 QDPD Comparison 431
13. 3. 3 Evolution of QD Image Sensors 431
13. 4 Conclusion and Outlook 434
13. 4. 1 Use Cases and Applications 434
13. 4. 2 Outlook 438
References 439
14 Future of Quantum Dots in Displays and Beyond 445
Peter Palomaki
14. 1 Introduction 445
14. 2 Implementation of QDs Past, Present, and Future 446
14. 2. 1 Past Technologies 446
14. 2. 2 Present Technologies 447
14. 2. 3 Future Technologies 447
14. 3 QD Materials 452
14. 3. 1 CdSe and InP 452
14. 3. 2 Perovskite 453
14. 3. 3 I-III-VI QDs 455
14. 3. 4 Nitrides 456
14. 3. 5 Material Usage 456
14. 3. 6 Anisotropic QD Systems 458
14. 3. 7 Stability 460
14. 4 Optical Properties 462
14. 4. 1 Linewidth 462
14. 4. 2 Light Absorption 465
14. 4. 3 Spectral Engineering and Re-absorption 465
14. 4. 4 QDs and Phosphors 466
14. 4. 5 Four or More Primaries 467
14. 5 Regulatory 468
14. 6 Non-display Applications 470
14. 6. 1 Solar Spectrum Engineering 470
14. 6. 2 QD Solar Cells 471
14. 7 Summary 472
References 473
Index 477
Produktdetails
Erscheinungsdatum
22. Mai 2025
Sprache
englisch
Seitenanzahl
512
Herausgegeben von
Eunjoo Jang, Paul Alivisatos, Ruiqing Ma
Verlag/Hersteller
Produktart
gebunden
Gewicht
907 g
Größe (L/B/H)
242/180/31 mm
ISBN
9781394181858
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