From 1D to 3D: Tunable Sub-10 nm Gaps in Large Area Devices

Ziwei Zhou; Zhiyuan Zhao; Ye Yu; Bin Ai; Helmuth Möhwald; Ryan C Chiechi; Joel K W Yang; Gang Zhang

doi:10.1002/adma.201505929

From 1D to 3D: Tunable Sub-10 nm Gaps in Large Area Devices

Adv Mater. 2016 Apr 20;28(15):2956-63. doi: 10.1002/adma.201505929. Epub 2016 Feb 18.

Authors

Ziwei Zhou¹, Zhiyuan Zhao^{1

2}, Ye Yu^{1

3}, Bin Ai¹, Helmuth Möhwald⁴, Ryan C Chiechi², Joel K W Yang³, Gang Zhang¹

Affiliations

¹ State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
² Stratingh Institute for Chemistry, and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands.
³ Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore, 487372, Singapore.
⁴ Max Planck Institute of Colloids and Interfaces, D-14424, Potsdam, Germany.

PMID: 26890027
DOI: 10.1002/adma.201505929

Abstract

Tunable sub-10 nm 1D nanogaps are fabricated based on nanoskiving. The electric field in different sized nanogaps is investigated theoretically and experimentally, yielding nonmonotonic dependence and an optimized gap-width (5 nm). 2D nanogap arrays are fabricated to pack denser gaps combining surface patterning techniques. Innovatively, 3D multistory nanogaps are built via a stacking procedure, processing higher integration, and much improved electric field.

Keywords: 3D nanostructures; nanogaps; nanoskiving; surface plasmon; surface-enhanced Raman spectroscopy.

Publication types

Research Support, Non-U.S. Gov't