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Modified coffee rings for quasi‐1D interconnects
Author(s) -
MartínezMiranda Luz J.,
Blyskal Andrew,
Michaels Christina K.
Publication year - 2016
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201600388
Subject(s) - grating , materials science , anisotropy , coffee ring effect , percolation (cognitive psychology) , interconnection , flow (mathematics) , perpendicular , nanowire , current (fluid) , optoelectronics , optics , nanotechnology , physics , mechanics , geometry , computer science , telecommunications , mathematics , neuroscience , biology , thermodynamics
Silver nanowires (AgNW) in solution with isopropyl alcohol are deposited on photolithographed gratings of varying depth. The deposition results in a modified coffee ring where the flow is redirected along the grating direction. We investigate the anisotropic character of the flow by performing electrical measurements at different concentrations of the nanowires, and for each of the grating depths used. We measure the electrical current along the directions perpendicular and parallel to the gratings. The current anisotropy tends to disappear at higher concentrations. The flow arranges the NW's into a 2D anisotropic arrangement by analyzing how the electrical percolation behaves. By observing the properties this 2D anisotropic arrangement as a function of concentration and grating depth, we can predict where a quasi‐1D interconnect can be obtained.