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- Title
A facile way to optimize thermoelectric properties of SnSe thin films via sonication-assisted liquid-phase exfoliation.
- Authors
Van Duong, Thiet; Chung, Nguyen Xuan; Phan, Hong Ngoc; Nguyen, Hong Tuan; Nguyen, Dung Dinh; Le, Lu Trong; Van Pham, Nhat
- Abstract
In our work, SnSe nanosheets and nanostructured thin films were successfully synthesized via sonication-assisted exfoliation and coating process. The SnSe nanosheets respond to a uniform lateral size, with two to three single layers by 2.82 nm and 280 nm2 of average thickness and average area, respectively. The results were confirmed by Scanning Electron Microscope, Transmission Electron Microscope, and Atomic Force Microscope. X-ray diffraction and Raman spectra indicate that the SnSe nanosheets have high crystalline quality along a-axis. The SnSe nanostructured thin films were prepared in various thicknesses from 350 to 650 nm. The highest power factor value is achieved at 450 nm in 375–600 K temperature range. A simple method of fabrication and controllable thermoelectric properties of SnSe nanostructured thin films as well as other two-dimensional (2D) materials are introduced.
- Subjects
THERMOELECTRIC materials; THIN films; SONICATION; ATOMIC force microscopes; COATING processes; SCANNING electron microscopes
- Publication
Journal of Materials Science: Materials in Electronics, 2022, Vol 33, Issue 19, p15385
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-022-08446-9