Wafer-scale, three-dimensional helical porous thin films deposited at a glancing angle

Jeffery HUANG*, Fan Bai

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

29 Citations (Scopus)

Abstract

Minimization of helices opens a door to impose novel functions derived from the dimensional shrinkage of optical, mechanical and electronic devices. Glancing angle deposition (GLAD) enables one to deposit three-dimensional helical porous thin films (HPTFs) composed of separated spiral micro/nano-columns. GLAD integrates a series of advantageous features, including one-step deposition, wafer-scale production with mono-handedness of spirals, flexible engineering of spiral materials and dimensions, and the adaption to various kinds of substrates. Herein, we briefly review the fabrication of HPTFs by GLAD, specific growth mechanisms, physical properties in structures, mechanics and chiral optics, and the emerging applications in green energy. A prospective outlook is presented to illuminate some promising developments in enantioselection, bio-dynamic analyses, wirelessly-controlled drug delivery and mass production.

Original languageEnglish
Pages (from-to)9401-9409
Number of pages9
JournalNanoscale
Volume6
Issue number16
DOIs
Publication statusPublished - 21 Aug 2014

Scopus Subject Areas

  • Materials Science(all)

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