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Fabrication and Characterization of a Nanoscale Ni–Al Bimorph for Reconfigurable Nanostructures

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This paper presents the fabrication and characterization of nanoscale nickel–aluminum (Ni–Al) bimorphs towards self-adjustable nanostructures. Nickel nanowires were grown by a template based growth method using anodized aluminum oxide membrane and positioned at the edge of an oxidized silicon substrate. A thin aluminum film was deposited on the sidewall of a Ni nanowire using pulsed laser deposition (PLD), creating the bimorph nanostructure. The deposition status and thickness of the film were monitored using transmission electron microscope (TEM). The tip deflection of Ni–Al bimorphs under temperature change was measured on a temperature-controlled stage inside a scanning electron microscope (SEM). The displacements of the nanoactuator tips were recorded using SEM by comparing those data in different temperatures. The measured tip deflections were up to 700 nm from an 18 μm long bimorph at a 380 K temperature change, which agreed well with the modeled prediction.
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Keywords: ACTUATOR; BIMORPH; NANOWIRE

Document Type: Short Communication

Publication date: June 1, 2010

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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