Metallized DNA nanolithography for encoding and transferring spatial information for graphene patterning

Zhong Jin, Wei Sun, Yonggang Ke, Chih-Jen Shih, Geraldine L.C. Paulus, Qing Hua Wang, Bin Mu, Peng Yin () and Michael S. Strano ()
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Zhong Jin: Massachusetts Institute of Technology
Wei Sun: Wyss Institute for Biologically Inspired Engineering, Harvard University
Yonggang Ke: Wyss Institute for Biologically Inspired Engineering, Harvard University
Chih-Jen Shih: Massachusetts Institute of Technology
Geraldine L.C. Paulus: Massachusetts Institute of Technology
Qing Hua Wang: Massachusetts Institute of Technology
Bin Mu: Massachusetts Institute of Technology
Peng Yin: Wyss Institute for Biologically Inspired Engineering, Harvard University
Michael S. Strano: Massachusetts Institute of Technology

Nature Communications, 2013, vol. 4, issue 1, 1-9

Abstract: Abstract The vision for graphene and other two-dimensional electronics is the direct production of nanoelectronic circuits and barrier materials from a single precursor sheet. DNA origami and single-stranded tiles are powerful methods to encode complex shapes within a DNA sequence, but their translation to patterning other nanomaterials has been limited. Here we develop a metallized DNA nanolithography that allows transfer of spatial information to pattern two-dimensional nanomaterials capable of plasma etching. Width, orientation and curvature can be programmed by specific sequence design and transferred, as we demonstrate for graphene. Spatial resolution is limited by distortion of the DNA template upon Au metallization and subsequent etching. The metallized DNA mask allows for plasmonic enhanced Raman spectroscopy of the underlying graphene, providing information on defects, doping and lattice symmetry. This DNA nanolithography enables wafer-scale patterning of two-dimensional electronic materials to create diverse circuit elements, including nanorings, three- and four-membered nanojunctions, and extended nanoribbons.

Date: 2013
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DOI: 10.1038/ncomms2690

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