Van der Waals Heterostructures for Photoelectric, Memory, and Neural Network Applications
Hang Xu,
Yue Xue,
Zhenqi Liu,
Qing Tang,
Tianyi Wang,
Xichan Gao,
Yaping Qi,
Yong P. Chen,
Chunlan Ma,
Yucheng Jiang
Affiliations
Hang Xu
Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Physical Science and Technology Suzhou University of Science and Technology Suzhou Jiangsu 215009 P. R. China
Yue Xue
Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Physical Science and Technology Suzhou University of Science and Technology Suzhou Jiangsu 215009 P. R. China
Zhenqi Liu
Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Physical Science and Technology Suzhou University of Science and Technology Suzhou Jiangsu 215009 P. R. China
Qing Tang
Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Physical Science and Technology Suzhou University of Science and Technology Suzhou Jiangsu 215009 P. R. China
Tianyi Wang
Advanced Institute for Materials Research (WPI‐AIMR) Tohoku University Sendai 980‐8577 Japan
Xichan Gao
Advanced Institute for Materials Research (WPI‐AIMR) Tohoku University Sendai 980‐8577 Japan
Yaping Qi
Advanced Institute for Materials Research (WPI‐AIMR) Tohoku University Sendai 980‐8577 Japan
Yong P. Chen
Advanced Institute for Materials Research (WPI‐AIMR) Tohoku University Sendai 980‐8577 Japan
Chunlan Ma
Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Physical Science and Technology Suzhou University of Science and Technology Suzhou Jiangsu 215009 P. R. China
Yucheng Jiang
Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Physical Science and Technology Suzhou University of Science and Technology Suzhou Jiangsu 215009 P. R. China
A van der Waals (vdW) heterostructure is formed by combining multiple materials through vdW bonds. It can combine the advantages of electronic, optical, thermal, and magnetic properties of different 2D materials and has the potential to develop into the next generation of high‐performance functional devices. Herein, the current research advances of vdW heterostructures are reviewed. First, current fabrication methods and physical structures of vdW heterostructures are summarized. The 2D/nD (n = 0,1,2,3) mixed‐dimensional heterostructures are discussed in detail. Second, a new type of vdW heterostructure is introduced based on two‐dimensional electron gas with a nanoscale junction interface. Finally, the application prospects of vdW heterostructures in photoelectric and memory devices are further outlined by combing new applications in the neural networks. This review shows that vdW heterostructures have great advantages in high integration, energy harvesting, and logical operations, and it provides directions and suggestions for the future research and application of environmentally friendly, high‐performance, and smart functional devices.
