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Program Highlights for year 2006

IRG 2: Formation of Polymeric Nanotubes

In a human body, phospholipids form all kinds of different membranes and self-arrange into different objects.

Supercurrents Flex Cantilever to Reveal Vortices

A soft cantilever beam, which can detect a very weak force, has been used by IRG1 researchers to uncover a striking property of cuprate superconductors: that trace supercurrents surrounding magnetic flux vortices persist for tens of degrees above the superconducting transition temperature Tc.

IRG 2: Breaking the Mold to Produce Submicron Polymeric Gratings with Large Areas

Princeton scientists have developed a new method for making gratings by prying apart two rigid plates that sandwich a thin, glassy polymeric film. The process fractures the film into complementary sets of ridges on each plate, with highly uniform ridge spacings ranging from 200 nm to 200 Â’µm, scaling directly with the film thickness.

IRG 3: Patterning of Organic Materials for Organic Electronic Devices

A team of Princeton researchers has developed an enabling technique for manufacturing electro-optical devices from organic semiconductors.

Fast Drying Produces Order

A collaboration of experimentalists and theorists at the Chicago MRSEC has discovered a new, general route for creating nanoparticle monolayers that retain order across millions of particles, without holes, while staying compact over macroscopic distances[1].

Granular Jets

When a marble or ball-bearing is dropped onto a bed of fine, loose sand, one first observes a broad splash of sand at impact. Then, a tall jet of granular material shoots up vertically.