Abstract
As important two-dimensional nanostructures, MoS2 nanobelts grown on (AlGa)N and ZnO substrates, respectively, are facilely and economically fabricated by one-step chemical vapor deposition without using any catalyst. The characterizations for morphologies, compositions, and optical properties are performed by scanning electron microscopy (SEM), energy dispersed X-ray spectrometry (EDS), and photoluminescence spectroscopy (PL). SEM confirms that MoS2 nanobelts grown on (AlGa)N substrates compared with ones grown on ZnO substrates have higher quality although EDS shows that both of the nanobelt arrays are composed of the same constituents, that is, pure MoS2. In addition, the room-temperature optical properties show that MoS2 nanobelts on (AlGa)N substrates possess excellent photoluminescence superior to ones on ZnO substrates.
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