Parallel Fabrication of Self-Assembled Nanogaps for Molecular Electronic Devices.
Small
; 14(50): e1803471, 2018 Dec.
Article
em En
| MEDLINE
| ID: mdl-30358919
ABSTRACT
Single molecule electronics might be a way to add additional function to nanoscale devices and continue miniaturization beyond current state of the art. Here, a combined top-down and bottom-up strategy is employed to assemble single molecules onto prefabricated electrodes. Protodevices, which are self-assembled nanogaps composed by two gold nanoparticles linked by a single or a few molecules, are guided onto top-down prefabricated nanosized nickel electrodes with sandwiched palladium layers. It is shown that an optimized geometry of multilayered metallic (top-down) electrodes facilitates the assembly of (bottom-up) nanostructures by surface charge interactions. Moreover, such assembly process results in an electrode-nanoparticle interface free from linking molecules that enable electrical measurements to probe electron transport properties of the nanoparticle-molecule-nanoparticle protodevices.
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MEDLINE
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article