Directed Self-Assembly on Photo-Crosslinked Polystyrene Sub-Layers: Nanopattern Uniformity and Orientation

Directed Self-Assembly on Photo-Crosslinked Polystyrene Sub-Layers: Nanopattern Uniformity and Orientation

A photo-crosslinked polystyrene (PS) thin film is investigated as a potential guiding sub-layer for polystyrene-block-poly (methyl methacrylate) block copolymer (BCP) cylindrical nanopattern formation via topographic directed self-assembly (DSA). When compared to a non-crosslinked PS brush sub-layer, the photo-crosslinked PS sub-layer provided longer correlation lengths of the BCP nanostructure...

Directed self-assembly with sub-100 degrees Celsius processing temperature, sub-10 nanometer resolution, and sub-1 minute assembly time.

and thus alternative technologies such as extreme ultraviolet (EUV) lithography, nanoimprint lithography, interference lithography, and directed self-assembly (DSA) are emerging rapidly. [ 2 , 3 , 8–16 ] DSA of block copolymers (BCPs) has recently attracted much attention as a promising candidate for nextgeneration lithography due to its capacity to provide excellent resolution and scalability....

Supporting Information for Electrostatic Self-Assembly of Polystyrene Microspheres Using Chemically-Directed Contact Electrification

Electrostatic self-assembly of polystyrene microspheres by using chemically directed contact electrification.

Herein we describe a process—based on contact electrification and electrostatic interactions—that directs the selfassembly of chemically modified polystyrene microspheres to form three-dimensional microstructures. When two solid surfaces are brought into contact and separated, charge is often transferred from one surface to the other in a process known as contact electrification. 2] We can pred...

Self and directed assembly: people and molecules

Self-assembly and directed-assembly are two very important aspects of supramolecular chemistry. As a young postgraduate student working in Canada with Tom Fyles my introduction to Supramolecular Chemistry was through the self-assembly of phospholipid membranes to form vesicles for which we were developing unimolecular and self-assembling transporter molecules. The next stage of my development a...