A central goal of IRG-4 is to use collective interactions between dissimilar nanocrystals to enhance the performance of their assemblies.Here we demonstrate plasmonic enhancement of optical upconversion luminescence within nanorod-nanophosphor heterodimers (Fig 1a-c).
In crystalline materials, topologial defects such as dislocations mark flow defects, or “soft spots,” corresponding to local regions that are likely to rearrange due to thermal fluctuations or an applied load. In disordered packings, it is extremely difficult to identify the corresponding soft spots.
Dendrimers are branched molecules of precise chemistry, and Janus-dendrimers are dendrimers that have two distinct faces, with unique chemistry corresponding to each face. Here, we made a library of carbohydrate containing glycodendrimers (GD) that self assemble into vesicles – a structure that mimics biological materials such as viruses.
Chromonic liquid crystals (CLCs) are different from typical LCs used in displays, in part because they “live” in water and thus hold untapped potential for coupling LC phenomenology with biological media. Furthermore, CLCs twist very easily compared to bend and splay deformation, and the consequences of this giant elastic anisotropy are not well understood.
Ferroelectric tunnel junctions exploit an ultrathin ferroelectric layer, 100,000 times thinner than a sheet of paper, so that electrons can "tunnel" through it. This layer resides between two metal electrodes that can reverse the direction of its polarization by applying electric voltage to it.
The University of Nebraska- Lincoln (UNL), under Nebraska MRSEC’s leadership, held its sixth Conference for Undergraduate Women in Physical Sciences, WoPhyS, on November 6-8, 2014.
