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Wang G, Guan Y, Wang Y, Ding Y, Yang L. Direct Laser Irradiation and Modification of 2D Te for Development of Volatile Memristor. MATERIALS (BASEL, SWITZERLAND) 2023; 16:738. [PMID: 36676475 PMCID: PMC9862747 DOI: 10.3390/ma16020738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/03/2023] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Laser irradiation, as a kind of post-fabrication method for two-dimensional (2D) materials, is a promising way to tune the properties of materials and the performance of corresponding nano-devices. As the memristor has been regarded as an excellent candidate for in-memory devices in next-generation computing system, the application of laser irradiation in developing excellent memristor based on 2D materials should be explored deeply. Here, tellurene (Te) flakes are exposed to a 532 nm laser in the air atmosphere to investigate the evolutions of the surface morphology and atom structures under different irradiation parameters. Laser is capable of thinning the flakes, inducing amorphous structures, oxides and defects, and forming nanostructures by controlling the irradiation power and time. Furthermore, the laser-induced oxides and defects promote the migration of metal ions in Te, resulting in the formation of the conductive filaments, which provides the switching behavers of volatile memristor, opening a route to the development of next-generation nano-devices.
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Affiliation(s)
- Genwang Wang
- Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin 150001, China
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yanchao Guan
- Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin 150001, China
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yang Wang
- Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin 150001, China
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Ye Ding
- Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin 150001, China
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Lijun Yang
- Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin 150001, China
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
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