Synthesis and Optical Properties of Tetrapod-Like ZnSSe Alloy Nanostructures


  • The work described in this paper was partially supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. 411807) and CUHK direct grants (Project codes: 2060305).


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Tetrapod-like ZnS1−xSex alloy nanostructures (T-ZnS1−xSex) of different compositions (0 ≤ x ≤ 1) are synthesized by chemical vapor deposition. Their composition-dependent Raman scattering and cathodoluminescence are studied. The single-crystal T-ZnS1−xSex nanostructures exhibit strong and narrow near-band-edge emissions that can be continuously tuned from 330–459 nm (see figure).