Reconfigurable Artificial Perception System and Logic Gates Based on Large‐Scale Antiambipolar 2D Heterostructure Array
Abstract Van der Waals (vdWs) heterostructures enable the fabrication of various optoelectronic devices with unprecedented functionalities, particularly antiambipolar transistors. Different methods have been employed to construct such devices; however, their integration and versatility remain significantly constrained. Here, large‐scale antiambipolar vdWs heterostructure arrays capable of implementing self‐adaptive artificial perception systems and reconfigurable logic gates are verified adopting 2D Te/WS 2 heterojunctions for the first time. The resulting transistors allow the modulation of band slope and depletion regions in individual constituents through electrostatic gating, delivering a high rectification ratio of 1.8 × 10 4 . Benefiting from the gate‐tunable antiambipolar characteristic and charge capture, such a device can realize reconfigurable modulation of synaptic plasticity between excitatory and inhibitory modes, enabling the emulation of artificial perception system for the adaptive and subjective perception adjustment in various external environments and also a recognition accuracy of 90.5% for image classification through training and inference simulations. In addition, five fundamental logic gate operations with good stability and reliability, as well as low energy consumption, are achieved in the dual‐gate antiambipolar transistor by tuning the input signals. Furthermore, similar antiambipolar characteristics are also observed from other 2D Te‐based heterostructures, defining a simple, effective, and universal method to create multifunctional antiambipolar transistors.
Authors
- Kunpeng Zhai (ORCID: https://orcid.org/0000-0002-2171-5529)
- Huashun Wen (ORCID: https://orcid.org/0000-0003-0821-0072)
- Yunping Bai (ORCID: https://orcid.org/0000-0002-3747-8257)
- Sha Zhu (ORCID: https://orcid.org/0000-0001-6725-5145)
- Yi Ren (ORCID: https://orcid.org/0000-0002-0231-8093)
- Yongji Wang (ORCID: https://orcid.org/0000-0002-5978-8459)
- Ziyu Xiong
- Ning Hua Zhu
Institutions
- Beijing University of Posts and Telecommunications (CN)
- City University of Hong Kong (HK)
- Shenzhen University (CN)
- Nankai University (CN)
Publication Details
- Journal
- Advanced Functional Materials
- Published
- 2024-12-06
- DOI
- https://doi.org/10.1002/adfm.202417358
- Citations
- 6
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.70
Funders
- National Natural Science Foundation of China