My research is focused on nanostructured soft materials including block-copolymers, surfactant mesophases and polymer-nanoparticle hybrid systems. I am interested in the process of self-assembly and ordering of these systems under the external directing fields (e.g., magnetic, thermal, mechanical), as well as the influence of the ordering on the transport phenomena in these materials (e.g., ionic conductivity). Currently, I’m participating in the project which combines a development of novel block-copolymers with a method of rapid annealing and patterning of thin polymeric films for the photovoltaic applications.
P. W. Majewski, M. Gopinadhan, C. O. Osuji, Understanding anisotropic transport in self-assembled membranes and maximizing ionic conductivity by microstructure alignment, Soft Matter 9 (29), p. 7106-7116 (2013), doi:10.1039/C3SM50320H
P. W. Majewski, M. Gopinadhan, W-S. Jang, J. L. Lutkenhaus, C. O. Osuji, Anisotropic Ionic Conductivity in Block Copolymer Membranes by Magnetic Field Alignment, Journal of the American Chemical Society 132 (49), pp 17516-17522 (2010), doi:10.1021/ja107309p
M. Gopinadhan, P. W. Majewski, Y. Choo, C. O. Osuji, Order-Disorder Transition and Alignment Dynamics of a Block Copolymer Under High Magnetic Fields by In Situ X-Ray Scattering, Physical Review Letters 110, 078301 (2013), doi:10.1103/PhysRevLett.110.078301
H. Tran, M. Gopinadhan, P. W. Majewski, R. Shade, V. Steffes, C. O. Osuji, L. Campos, Monoliths of Semiconducting Block Copolymers by Magnetic Alignment, ACS Nano 7 (6), p. 5514-5521 (2013). doi:10.1021/nn401725a
C. I. Pelligra, P. W. Majewski, C. O. Osuji, Large Area Vertical Alignment of ZnO Nanowires in Semiconducting Polymer Thin Films Directed by Magnetic Fields, Nanoscale (2013), doi: 10.1039/C3NR03119E