Dr. Zheng Zhang currently is a full Professor at the School of Materials Science and Engineering and the academy for advanced interdisciplinary science and technology in the University of Science and Technology Beijing.

Dr. Zhuo Kang is a full professor at the academy for advanced interdisciplinary science and technology in University of Science and Technology Beijing.

Dr. Qingliang Liao is a full professor at the academy for advanced interdisciplinary science and technology in University of Science and Technology Beijing.

Dr. Yue Zhang is the Academician of Chinese Academic Society and a Full Professor of Material Physics at University of Science and Technology Beijing, China. He has authored over 450 scientific publications and is the Chief scientist of National Major Scientific Research Plan and project in China.

Preface xi

1 The 2D Semiconductor Library 1
Zheng Zhang and Yue Zhang

1.1 Introduction 1
1.2 Emerging 2DLMs for Future Electronics 3

2 The 2D Semiconductor Synthesis and Performances 33
Xiang Chen, Qijie Liang and Yue Zhang

2.1 Exfoliation 33
2.2 Chemical Vapor Deposition 38

3 The VdW Heterostructure Controllable Fabrications 69
Zheng Zhang, Qingliang Liao and Yue Zhang

3.1 Wet Transfer 69
3.2 Controllable Selective Synthesis 76
3.3 Dry Transfer 86

4 The Mixed-dimensional VdW Heterostructures 97
Pei Lin, Baishan Liu and Zheng Zhang

4.1 Categorization of Mixed-dimensional VdWHs 97
4.2 Strategies for Constructing Mixed-dimensional VdWHs 99
4.3 Electronic and Sensing Applications 101
4.4 Optoelectronic and Photonic Applications 104
4.5 Energy Applications 111
4.6 Conclusions 115

5 The VdW Heterostructure Interface Physics 125
Guangjie Zhang, Yang Ou, Peifeng Li and Qingliang Liao

5.1 Band Alignment and Charge Transfer in VdWHs 126
5.2 Magnetic Coupling in VdWHs 129
5.3 Moiré Pattern 134
5.4 VdWHs for Protection 137
5.5 Characterization Techniques for VdWHs 142

6 The VdW Heterostructure Multi-field Coupling Effects 157
Junli Du, Baishan Liu and Zheng Zhang

6.1 Introduction 157
6.2 The Multifield Coupling Effect Characterization for 2D Van der Waals Structures 158
6.3 The Multifield Modulation for Electrical Properties of 2D Van der Waals Structures 167
6.4 The Multifield Modulation for Optical Properties of 2D Van der Waals Structures 172

7 VdW Heterostructure Electronics 187
Xiankun Zhang, Xiang Chen and Yue Zhang

7.1 Van der Waals PN Junctions 188
7.2 Van der Waals Metal-Semiconductor Junctions 192
7.3 Field-effect Transistor 197
7.4 Junction Field-Effect Transistor 201
7.5 Tunneling Field-Effect Transistor 208
7.6 Van der Waals Integration 213

8 VdW Heterostructure Optoelectronics 223
Qi Zhang, Zhuo Kang and Yue Zhang

8.1 Photodetectors 223
8.2 Light Emission 236
8.3 Optical Modulators 245

9 VdW Heterostructure Electrochemical Applications 261
Xiankun Zhang and Zhuo Kang

9.1 Solar Energy 262
9.2 Van der Waals Heterostructure Application in Hydrogen Energy 267
9.3 Battery 271
9.4 Catalyst 277
9.5 Biotechnology 282

10 Perspective and Outlook 295
Zheng Zhang and Yue Zhang

10.1 Overall Development Status of 2D Materials 295
10.2 Compatibility Between 2D Van der Waals Device Processing and Silicon Technology 301
10.3 Promising Roadmap of Van der Waals Heterostructure Devices [Medium term: 5 years, Long term: 5-10 years] 307
10.4 Promising Roadmap of Optoelectronic Device 309
10.5 Conclusion and Prospect 310

References 311
Index 317