Abstract
High-density germanium (Ge) nanowire arrays grown from porous alumina templates via supercritical fluid-liquid-solid (SFLS) growth were successfully synthesized. Before the growth of Ge nanowire arrays, the gold metal nanoparticles as growth catalyst layer were synthesized at the bottoms of anodic porous alumina (AAO) templates by pulsed electro-deposition. Partial exposure of Ge NW arrays from AAO or free standing of Ge NW arrays was demonstrated by using different etching solutions. The growth of single crystalline Ge NW arrays from AAO significantly provides a low-cost with high yield approach to control the size of Ge NWs by the AAO template. © 2013 The Electrochemical Society. [DOI: 10.1149/2.010306ssl] All rights reserved.
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