Fabrication and characterization of three-dimensional InGaAs/GaAs nanosprings.

Bell, Dominik J; Dong, Lixin; Nelson, Bradley J; Golling, Matthias; Zhang, Li; Grützmacher, Detlev · Nano Lett · 2006

basic_science · Level V

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Abstract

This paper presents the use of a novel fabrication technique to produce three-dimensional (3D) nanostructures. The process is based on conventional microfabrication techniques to create a planar pattern in an InGaAs/GaAs bilayer that self-assembles into 3D structures during a wet etch release. The nanostructures are proposed to function as nanosprings for electromechanical sensors. Nanomanipulation inside a scanning electron microscope (SEM) was conducted to probe the structures for mechanical characterization. The results were validated by simulation.

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