Surface energy-mediated construction of anisotropic semiconductor wires with selective crystallographic polarity.

ABSTRACT: ZnO is a wide band-gap semiconductor with piezoelectric properties suitable for opto-electronics, sensors, and as an electrode material. Controlling the shape and crystallography of any semiconducting nanomaterial is a key step towards extending their use in applications. Whilst anisotropic ZnO wires have been routinely fabricated, precise control over the specific surface facets and tailoring of polar and non-polar growth directions still requires significant refinement. Manipulating the surface energy of crystal facets is a generic approach for the rational design and growth of one-dimensional (1D) building blocks. Although the surface energy is one basic factor for governing crystal nucleation and growth of anisotropic 1D structures, structural control based on surface energy minimizati

SUBMITTER: Sohn JI 

PROVIDER: S-EPMC4095566 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature