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Thermal Stability and Anisotropic Sublimation of Two-Dimensional Colloidal Bi2Te3 and Bi2Se3 Nanocrystals

Authors :
Buha, Joka
Gaspari, Roberto
Castillo, Antonio Esau Del Rio
Bonaccorso, Francesco
Manna, Liberato
Publication Year :
2016

Abstract

The structural and compositional stabilities of two dimensional 2D Bi2Te3 and Bi2Se3 nanocrystals, produced by both colloidal synthesis and by liquid phase exfoliation, were studied by in situ transmission electron microscopy TEM during annealing at temperatures between 350 and 500 C. The sublimation process induced by annealing is structurally and chemically anisotropic and takes place through the preferential dismantling of the prismatic 011-0 type planes, and through the preferential sublimation of Te or Se.<br />Comment: 23 pages, 5 figures, May 27, 2016 Letter pubs.acs.org/NanoLett Nano Letters, May 27, 2016

Subjects

Subjects :
Physics - Chemical Physics

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1609.04999
Document Type :
Working Paper
Full Text :
https://doi.org/10.1021/acs.nanolett.6b01116