Encapsulating nanoparticle arrays into layer-by-layer multilayers by capillary transfer lithography
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- Encapsulating nanoparticle arrays into layer-by-layer multilayers by capillary transfer lithography
- Ko, Hyunhyub; Jiang, CY; Tsukruk, VV
- Capillary transfer lithogrpahy; Micropatterns; Microscopic arrays
- Issue Date
- AMER CHEMICAL SOC
- CHEMISTRY OF MATERIALS, v.17, no.22, pp.5489 - 5497
- We introduce capillary transfer lithography for the fabrication of ordered microscopic arrays from nanoparticulate materials encapsulated into ultrathin (<100 nm) flexible polymer films. Well-defined polymer micropatterns have been fabricated by capillary transfer lithography and used as a protective template for guided assembly of nanoparticles on layer-by-layer (LbL) multilayers. Sequential removal of this template facilitates further assembly of a topmost polyelectrolyte film, hence completing encapsulation. The striped and chess-board arrays of a single layer of carbon nanotubes and gold nanoparticles were sandwiched between two polymer LbL multilayers of thickness 19 nm each.
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