Strain Effect on Thermoelectric Performance of InSe Monolayer
Abstract Strain engineering is a practical method to tune and improve the physical characteristics and properties of two-dimensional materials, due to their large stretchability. Tensile strain dependence of electronic, phonon, and thermoelectric properties of InSe monolayer are systematically studi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2019-08-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s11671-019-3113-9 |
| _version_ | 1797711227633270784 |
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| author | Qian Wang Lihong Han Liyuan Wu Tao Zhang Shanjun Li Pengfei Lu |
| author_facet | Qian Wang Lihong Han Liyuan Wu Tao Zhang Shanjun Li Pengfei Lu |
| author_sort | Qian Wang |
| collection | DOAJ |
| description | Abstract Strain engineering is a practical method to tune and improve the physical characteristics and properties of two-dimensional materials, due to their large stretchability. Tensile strain dependence of electronic, phonon, and thermoelectric properties of InSe monolayer are systematically studied. We demonstrate that the lattice thermal conductivity can be effectively modulated by applying tensile strain. Tensile strain can enhance anharmonic phonon scattering, giving rise to the enhanced phonon scattering rate, reduced phonon group velocity and heat capacity, and therefore lattice thermal conductivity decreases from 25.9 to 13.1 W/mK when the strain of 6% is applied. The enhanced figure of merit indicates that tensile strain is an effective way to improve the thermoelectric performance of InSe monolayer. |
| first_indexed | 2024-03-12T07:02:58Z |
| format | Article |
| id | doaj.art-322c05fa8469470f941db7ca98d0b4d4 |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T07:02:58Z |
| publishDate | 2019-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-322c05fa8469470f941db7ca98d0b4d42023-09-02T23:35:00ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2019-08-011411910.1186/s11671-019-3113-9Strain Effect on Thermoelectric Performance of InSe MonolayerQian Wang0Lihong Han1Liyuan Wu2Tao Zhang3Shanjun Li4Pengfei Lu5State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and TelecommunicationsState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and TelecommunicationsState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and TelecommunicationsCollege of Electrical Engineering and Information Technology, Sichuan UniversityCollege of Electrical Engineering and Information Technology, Sichuan UniversityState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and TelecommunicationsAbstract Strain engineering is a practical method to tune and improve the physical characteristics and properties of two-dimensional materials, due to their large stretchability. Tensile strain dependence of electronic, phonon, and thermoelectric properties of InSe monolayer are systematically studied. We demonstrate that the lattice thermal conductivity can be effectively modulated by applying tensile strain. Tensile strain can enhance anharmonic phonon scattering, giving rise to the enhanced phonon scattering rate, reduced phonon group velocity and heat capacity, and therefore lattice thermal conductivity decreases from 25.9 to 13.1 W/mK when the strain of 6% is applied. The enhanced figure of merit indicates that tensile strain is an effective way to improve the thermoelectric performance of InSe monolayer.http://link.springer.com/article/10.1186/s11671-019-3113-9Two-dimensional materialsThermoelectricStrain engineering |
| spellingShingle | Qian Wang Lihong Han Liyuan Wu Tao Zhang Shanjun Li Pengfei Lu Strain Effect on Thermoelectric Performance of InSe Monolayer Nanoscale Research Letters Two-dimensional materials Thermoelectric Strain engineering |
| title | Strain Effect on Thermoelectric Performance of InSe Monolayer |
| title_full | Strain Effect on Thermoelectric Performance of InSe Monolayer |
| title_fullStr | Strain Effect on Thermoelectric Performance of InSe Monolayer |
| title_full_unstemmed | Strain Effect on Thermoelectric Performance of InSe Monolayer |
| title_short | Strain Effect on Thermoelectric Performance of InSe Monolayer |
| title_sort | strain effect on thermoelectric performance of inse monolayer |
| topic | Two-dimensional materials Thermoelectric Strain engineering |
| url | http://link.springer.com/article/10.1186/s11671-019-3113-9 |
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