| 초록 |
Sb2Se3-xSx (x = 0 ~ 3) is a promising one-dimensional (1D) semiconductor for the future application of optoelectronics, photovoltaics, and thermoelectrics. While syntheses of one-dimensional structure for them has been studied well, it is still challenging to investigate a synthetic route for their single-crystalline and solid-solution 1D nanowires in a large scale. Here we report a facile method to synthesize single-crystalline Sb2Se3-xSx solid-solution nanowires in a subgram scale via topochemical route from ternary metal chalcogenide without surface stabilizing agent. Through changing composition in the precursor, this topochemical route enable controllability in the composition with bandgap tunability . The converted nanowires consist of infinite 1D chain structure, which results in highly anisotropic thermal transport properties compared to the bulk counterparts. |
