Abstract
A kind of novel superstructure array composed of hexagonal Bi2Se3 nanosheets were fabricated via a facile hydrothermal method. The structure was characterized by X-ray diffraction and field emission scanning electron micrioscopy. It is suggested that the two dimensional superstructure was self-assembled by sheet-like Bi2Se3 building blocks on naturally-formed Bi2SeO2 precusor template. The present result indicates one promising way in design and growth of self-assembled superstructures by controllable crystal growth from deoxided substrates with good lattice match.
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