Multimode Signal Processor Unit Based on the Ambipolar WSe2–Cr Schottky Junction
| Autor: | Jianlu Wang, Tie Lin, Chong Yin, Yiyang Jiang, Junhao Chu, Hong Shen, Weida Hu, Yan Chen, Piyi Du, Xiangjian Meng, Binmin Wu, Haoliang Wang, Zongrong Wang, Xudong Wang |
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| Rok vydání: | 2019 |
| Předmět: |
Digital signal processor
Multi-mode optical fiber Materials science Ambipolar diffusion business.industry Schottky barrier 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Signal 0104 chemical sciences Rectifier Sine wave Rectification Optoelectronics General Materials Science 0210 nano-technology business |
| Zdroj: | ACS Applied Materials & Interfaces. 11:38895-38901 |
| ISSN: | 1944-8252 1944-8244 |
| Popis: | A Schottky barrier is a double-edged sword in electronic and optoelectronic devices, especially devices based on two-dimensional materials. It may restrict the carrier transport in devices, but it can also realize multifunctional devices by architecture design. We designed a simple but novel device structure based on theWSe2-Cr Schottky junction with an asymmetric Schottky contact area of the source and drain. A significant rectification ratio over 105 and multiple rectifying states (e.g., full pass, forward pass, off, and backward pass) were achieved in the single Schottky junction tuned by gate voltage. Furthermore, switching characteristic, rectification characteristic, and amplitude of a sin wave can be effectively modulated by the electrical field or light illumination in a signal process circuit based on the WSe2-Cr Schottky junction. The highly tunable Schottky junction working as a multimode signal processor unit has great potential in future optoelectronic-integrated chips. |
| Databáze: | OpenAIRE |
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