Highlights
Mar 25, 2008
Princeton University
Fine Print: New Technique Allows Fast Printing of Microscopic Electronics
Sibel Korkut, Dudley Saville, and Ilhan Aksay
While electronics have become much smaller and more powerful, an elusive goal has been to "print" these tiny devices rapidly over very large areas.While electronics have become much smaller and more powerful, an elusive goal has been to "print" these tiny devices rapidly over very large areas. The ability to do so could lead to larger and less expensive video displays in the near-term and wide-area sensors or medical devices in the longer term.
Mar 25, 2008
Princeton University
New Initiatives in PCCM REU Program
Education: Jay Benziger, Dan Steinberg, and dozens of faculty mentors
The Princeton Center for Complex Materials has run a highly successful Research Experience for Undergraduates (REU) program for over a decade. The 33 participants in 2007's program were selected from a strong pool of 310 applicants, and through our Partnership for Research and Education in Materials (PREM) with California State University - Northridge (CSUN), we were able to include five CSUN undergraduates in this group. Through our REU program, students become familiar with Princeton as well as research; five former REU students are currently enrolled here as Ph.D.
Mar 14, 2008
University of Minnesota - Twin Cities
Printed Organic FETs on Plastic
In a collaboration with an industrial manufacturer of aerosol jet printers (Optomec, Inc.), Lodge, Frisbie, and their students have demonstrated successful low voltage operation of an array of ion-gel gated OFETs printed on flexible polyimide substrates. Every component of the OFETs was printed--the metal electrodes (gold colloidal ink), the semiconductor (poly(3-hexylthiophene), and the gate insulator (the new ion gel material).
Mar 14, 2008
University of Minnesota - Twin Cities
Understanding Magnetic "Exchange Pinning"
Magnetic storage of digital data is now possible at densities approaching 1 Terabit per square inch at a cost of only about a tenth of a cent per Megabit. To a large extent, the breathtaking progress in this area of technology is sustained by discovery of bits. The invention of “GMR" sensors based on stacks of ultra-thin films of magnetic metals (for which the Nobel Prize in Physics was awarded in 2007) is a perfect example.
Mar 6, 2008
Princeton University
PCCM Helps Integrate Materials Science into NJ School Curricula
Daniel Steinberg, Rick Register, Jim Sturm, Craig Arnold, Ilhan Aksay
In 2004, PCCM launched a partnership with ASM to run a week-long "Materials Camp" for high school teachers. Over the past four years, over 120 teachers have been trained to teach materials science in local schools. In follow-up evaluations and refresher sessions, teachers report in using this knowledge in their classrooms.
Feb 25, 2008
Massachusetts Institute of Technology
Dynamic Surface-Emitting Fiber Lasers
John Joannopoulos (MIT), Yoel Fink (MIT)
Members of of IRG-I have recently introduced a new concept in fiber lasers. Until now, emission from fiber lasers originated solely from the fiber ends in the axial direction with a spot size dictated by the core radius. In contrast, these novel lasers, termed surface-emitting fiber lasers (SEFLs), emit radiation radially and are capable of dynamic tuning of both the gain-medium position along the fiber axis and the direction of emission.These interesting results suggest that the direction of the laser beam can be controlled remotely just by rotating the pump polarization.
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