Ghoshal, T,Maity, T,Godsell, JF,Roy, S,Morris, MA

2012

January

Advanced Materials

Large Scale Monodisperse Hexagonal Arrays of Superparamagnetic Iron Oxides Nanodots: A Facile Block Copolymer Inclusion Method

Validated

()

block copolymers patterning nanodots magnetism photoelectron spectroscopy THIN-FILMS DIBLOCK COPOLYMER MAGNETIC-PROPERTIES NANOPARTICLES NANOCRYSTALS TEMPLATES LITHOGRAPHY POLYSTYRENE FABRICATION MORPHOLOGY

24

2390

2397

Highly dense hexagonal ordered arrays of superparamagnetic iron oxides nanodots are fabricated by a simple and cost-effective route. Spectroscopic, microscopic and magnetic measurements show that the nanodots have uniform size, shape and their placement mimics the original self-assembled block copolymer pattern. The nanodots show good thermal stability and strong adherence to the substrate surface, making them useful for practical device applications.

DOI 10.1002/adma.201200357