Nano-Patterned Polyelectrolyte Multilayers: A Non-Lithographic Approach

Roy Shenhar, Institute of Chemistry, Hebrew University, Jerusalem, Israel

Nano-patterned materials exhibit unique properties, such as increased surface area and morphology-dependent response. However, obtaining nanoscale patterns usually requires the involvement of electron beam lithography, which is limiting when device-scale patterns (typically spanning square centimeter areas) are sought.

The presentation will describe a modular approach for the construction of nano-patterned polyelectrolyte multilayers. This approach utilizes the surface patterns that are formed spontaneously in thin films of block copolymers as templates, which guide the assembly of polyelectrolytes using electrostatic layer-by-layer deposition. The presentation will discuss the fundamentals of selective polyelectrolyte adsorption on confined nano-domains and will delineate potential applications.

References:

Lior Asor, Sivan Nir, Meirav Oded, Meital Reches, and Roy Shenhar, "Nano-patterned polyelectrolyte multilayers assembled using block copolymer templates: The  combined effect of ionic strength and nano-confinement", Polymer 2017, 126, 56-64.

Meirav Oded, Axel H. E. Müller, and Roy Shenhar, "A block copolymer-templated construction approach for the creation of nano-patterned polyelectrolyte multilayers and nanoscale objects", Soft Matter 2016, 12, 8098-8103.

Meirav Oded, Stephen T. Kelly, Mary K. Gilles, Axel H. E. Müller, and Roy Shenhar, "From Dots to Doughnuts: Two-Dimensionally Confined Deposition of Polyelectrolytes on Block Copolymer", Polymer 2016, 107, 406-414.

Meirav Oded, Stephen T. Kelly, Mary K. Gilles, Axel H. E. Müller, and Roy Shenhar, "Periodic Nanoscale Patterning of Polyelectrolytes over Square Centimeter Areas Using Block Copolymer Templates", Soft Matter 2016, 12, 4595-4602.