1 research outputs found
Recrystallized Arrays of Bismuth Nanowires with Trigonal Orientation
We
demonstrate methods to improve the crystalline-quality of free-standing
Bi nanowires arrays on a Si substrate and enhance the preferred trigonal
orientation for thermoelectric performance by annealing the arrays
above the 271.4 °C Bi melting point. The nanowires maintain their
geometry during melting due to the formation of a thin Bi-oxide protective
shell that contains the molten Bi. Recrystallizing nanowires from
the melt improves crystallinity; those cooled rapidly demonstrate
a strong trigonal orientation preference