In-Situ TEM Observations of the Crystallization Process of Solution-Prepared MoS2 Amorphous Particles
The crystallization of polymer-mixed amorphous molybdenum sulfide was observed in-situ by a TEM equipped with a heated specimen holder. High electron beam irradiation induced the formation of a crystal structure with a lattice spacing of 0.62 nm, which corresponds to the layer spacing of MoS2. With a lower electron dose, a possible new crystal structure of molybdenum sulfide with several fringe spacings was identified at room temperature. An ordered layered structure of MoS2 appeared after annealing at 600 °C. The completely different crystal phase found here might be responsible for the high temperature required for the formation of the MoS2 layered structure.
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Document Type: Research Article
Publication date: 2009-11-01
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