Solution phase growth and analysis of super-thin zigzag tin selenide nanoribbons
Chang, Shery L. Y.
Holmes, Justin D.
Tin selenide (SnSe), a highly promising layered material, has been garnering particular interest in recent times due to its significant promise for future energy devices. Herein we report a simple solution-phase approach for growing highly crystalline layered SnSe nanoribbons. Polyvinylpyrrolidone (PVP) was used as a templating agent to selectively passivates the (100) and (001) facets of the SnSe nanoribbons resulting in the unique growth of nanoribbons along their b-axis with a defined zigzag edge state along the sidewalls. The SnSe nanoribbons are few layers thick (similar to 20 layers), with mean widths of similar to 40 nm, and achievable length of >1 mu m. Nanoribbons could be produced in relatively high quantities (>150 mg) in a single batch experiment. The PVP coating also offers some resistance to oxidation, with the removal of the PVP seen to lead to the formation of a SnSe/SnO (x) core-shell structure. The use of non-toxic PVP to replace toxic amines that are typically employed for other 1D forms of SnSe is a significant advantage for sustainable and environmentally friendly applications. Heat transport properties of the SnSe nanoribbons, derived from power-dependent Raman spectroscopy, demonstrate the potential of SnSe nanoribbons as thermoelectric material.
Polyol synthesis , Thermal conductivity , SNSE nanowires , Raman spectra , Performance , Transition , Nanobelts , Nanocrystals , Nanosheets , Stability , Nanoribbon , Tin selenide , Raman spectroscopy , 1d van-der Waals structure
Davitt, F., Rahme, K., Raha, S., Garvey, S., Roldan-Gutierrez, M., Singha, A., Chang, S. L. Y., Biswas, S. and Holmes, J. D. (2022) 'Solution phase growth and analysis of super-thin zigzag tin selenide nanoribbons', Nanotechnology, 33(13), 135601(12pp). doi: 10.1088/1361-6528/ac4354