Bismuth telluride hexagonal nanoplatelets and their two-step epitaxial growth.
We report a synthesis of discrete, single-crystal, defect-free, and hexagonal Bi2Te3 nanoplatelets using a high-temperature organic solution approach, and we demonstrate a two-step epitaxial growth of the cylindrical strings of Bi2Te3 nanoplatelets on the surface of the Te rod by packing them along c-axis in a top-bottom-top-bottom sequence. This type of building-up provides additional opportunity for the exploration of novel thermoelectric properties from such quantum-confined materials, in which the boundary scattering of phonons is anticipated to enhance.
Lu
Weigang
W
Department of Chemistry and Advanced Materials Research Institute, University of New Orleans, New Orleans, Louisiana 70148, USA.
Ding
Yong
Y
Chen
Yuxi
Y
Wang
Zhong Lin
ZL
Fang
Jiye
J