Liquid metal-based synthesis of high performance monolayer SnS piezoelectric nanogenerators
| Autor: | Aaron Elbourne, Ali Zavabeti, Mohammad B. Ghasemian, Bao Yue Zhang, Ataur Rahman, Kourosh Kalantar-zadeh, Vaishnavi Krishnamurthi, Yongxiang Li, Jiong Yang, Guolin Zheng, Lan Wang, Nasir Mahmood, Paul Atkin, Hareem Khan, Torben Daeneke, Salvy P. Russo, Anil R. Ravindran, Sumeet Walia |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Electron mobility
Liquid metal Materials science Piezoelectric coefficient Science General Physics and Astronomy 02 engineering and technology 010402 general chemistry 01 natural sciences General Biochemistry Genetics and Molecular Biology Article Monolayer Electronic devices lcsh:Science Multidisciplinary business.industry General Chemistry 021001 nanoscience & nanotechnology Piezoelectricity 0104 chemical sciences Optoelectronics lcsh:Q 0210 nano-technology business Devices for energy harvesting Single crystal Actuators Voltage |
| Zdroj: | Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020) Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | The predicted strong piezoelectricity for monolayers of group IV monochalcogenides, together with their inherent flexibility, makes them likely candidates for developing flexible nanogenerators. Within this group, SnS is a potential choice for such nanogenerators due to its favourable semiconducting properties. To date, access to large-area and highly crystalline monolayer SnS has been challenging due to the presence of strong inter-layer interactions by the lone-pair electrons of S. Here we report single crystal across-the-plane and large-area monolayer SnS synthesis using a liquid metal-based technique. The characterisations confirm the formation of atomically thin SnS with a remarkable carrier mobility of ~35 cm2 V−1 s−1 and piezoelectric coefficient of ~26 pm V−1. Piezoelectric nanogenerators fabricated using the SnS monolayers demonstrate a peak output voltage of ~150 mV at 0.7% strain. The stable and flexible monolayer SnS can be implemented into a variety of systems for efficient energy harvesting. The presence of strong inter-layer interactions has hindered the synthesis efforts towards large-area and highly crystalline monolayer SnS. Here, the authors report synthesis of large-area monolayer SnS using a liquid metal-based technique, and fabricate piezoelectric nano-generators with average peak output voltage of 150 mV at 0.7% strain. |
| Databáze: | OpenAIRE |
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