| Abstract
| - A simple and practical carbothermal chemical vapor deposition route has been developed for the growth oftrigonal phase selenium nanowires and nanoribbons. In detail, the mixture of active carbon and selenium washeated for the chemical reaction to occur, followed by thermal evaporation and decomposition into elementalselenium. The as-prepared sample was characterized by X-ray diffraction, transmission electron microscopy,high-resolution electron microscopy, UV−vis absorption, and photoluminescence. The results show that trigonalSe nanowires have uniform diameters ranging from 20 to 60 nm and grow along the [001] direction, with thesame growth direction found for nanoribbons. Spectral measurements suggest a large blue shift and twotypes of electron transition activity. The influences of experimental conditions on morphologies and growthprocesses are also discussed. This synthetic method should be able to be extended to grow other one-dimensionalchalcogens and chalcogenides nanostructures.
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