期刊
SMALL
卷 6, 期 10, 页码 1117-1124出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.200901547
关键词
clusters; electrodeposition; interconnects; nanostructures; sensors
类别
资金
- NSF [DMI-0755995, DMI-0621137, DMI-0556161, ECS-0407613]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0755995] Funding Source: National Science Foundation
An in situ gas-phase process that produces charged streams of Au, Si, TiO2, ZnO, and Ge nanoparticles/clusters is reported together with a programmable concept for selected-area assembly/printing of more than one material type. The gas-phase process mimics solution electrodeposition whereby ions in the liquid phase are replaced with charged clusters in the gas phase. The pressure range in which the analogy applies is discussed and it is demonstrated that particles can be plated into pores vertically (minimum resolution 60 nm) or laterally to form low-resistivity (48 mu Omega cm) interconnects. The process is applied to the formation of multimaterial nanoparticle films and sensors. The system works at atmospheric pressure and deposits material at room temperature onto electrically biased substrate regions. The combination of pumpless operation and parallel nozzle-free deposition provides a scalable tool for printable flexible electronics and the capability to mix and match materials.
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