Nanohelices by shadow growth

John G. Gibbs, Andrew G. Mark, Tung Chun Lee, Sahand Eslami, Debora Schamel, Peer Fischer

Research output: Contribution to journalArticlepeer-review

105 Scopus citations


The helix has remarkable qualities and is prevalent in many fields including mathematics, physics, chemistry, and biology. This shape, which is chiral by nature, is ubiquitous in biology with perhaps the most famous example being DNA. Other naturally occurring helices are common at the nanoscale in the form of protein secondary structures and in various macromolecules. Nanoscale helices exhibit a wide range of interesting mechanical, optical, and electrical properties which can be intentionally engineered into the structure by choosing the correct morphology and material. As technology advances, these fabrication parameters can be fine-tuned and matched to the application of interest. Herein, we focus on the fabrication and properties of nanohelices grown by a dynamic shadowing growth method combined with fast wafer-scale substrate patterning which has a number of distinct advantages. We review the fabrication methodology and provide several examples that illustrate the generality and utility of nanohelices shadow-grown on nanopatterns.

Original languageEnglish (US)
Pages (from-to)9457-9466
Number of pages10
Issue number16
StatePublished - Aug 21 2014
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science


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