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Highlights

Highlights

Feb 24, 2012
UPENN Materials Research Science and Engineering Centers

Soft Spots in Disordered Colloidal Packings

Andrea J. Liu and Arjun G. Yodh
Like liquids, solids can flow under applied shear stresses.  In crystalline solids, figuring out vulnerable regions where the material will break under stress is well-established—they are typically controlled by a population of defects in the crystal structure known as dislocations.  In disordered solids, however, defects are everywhere, making the task of identifying such vulnerable spots much more daunting.
Feb 20, 2012
Northwestern Materials Research Science and Engineering Center

NSF-Nanoelectronics Research Initiative
Generating, Probing and Manipulating Excitons in Carbon-based Nanomaterials        Density gradient ultracentrifugation leads to isolation of monodisperse graphene flakes      
Feb 20, 2012
Northwestern Materials Research Science and Engineering Center

Collaboration with Public Institutions: Art Conservation
The Art Institute of Chicago:Science of Art Conservation
Feb 20, 2012
Northwestern Materials Research Science and Engineering Center

Sharing Science through the Arts
(Gunawan et al., Nano Letters 2011, 11, 5553-5557)
(Gunawan et al., Nano Letters 2011, 11, 5553-5557)
Jan 19, 2012
UMN Materials Research Science and Engineering Center (2014)

Imaging 'Invisible' Dopant Atoms in Semiconductor Nanocrystals

Andre Mkhoyan,  David Norris
In semiconductor nanocrystals, the physical effects of deliberately included impurities, called dopants, may depend on the dopant position with the crystal. 
(a) Influence of temperature on the resistivity of P3HT (see structure in (c) at multiple levels of electrostatic doping. (b) shows a schematic of the transistor.
(a) Influence of temperature on the resistivity of P3HT (see structure in (c) at multiple levels of electrostatic doping. (b) shows a schematic of the transistor.
Jan 18, 2012
UMN Materials Research Science and Engineering Center (2014)

Why Most Plastics Can't be Metals

 Chris Leighton, Dan Frisbie
Conductive polymers, i.e. plastics, that conduct electricity, are important in science and technology as they offer the potential for cheap, flexible electronic devices.
(Cheng et al., Nano Letters 2011, 11, 1952-1956)
(Cheng et al., Nano Letters 2011, 11, 1952-1956)
Jan 18, 2012
UMN Materials Research Science and Engineering Center (2014)

High Efficiency Silicon Nanocrystal Light Emitting Devices

Russell Holmes, Uwe Kortshagen 
Hybrid light-emitting devices based on organic semiconductors and inorganic semiconductor nanocrystals are of great interest for applications in optical displays and solid-state light sources.
Jan 17, 2012
Cornell Center for Materials Research (2017)

Patterned Graphene "Scrap" Grows into Continuous "Patchwork Quilt"

M.P. Levendorf, et al. inpreparation   
  New technique produces heterojunctions in single-atom-thick graphene
Jan 17, 2012
Cornell Center for Materials Research (2017)

A Better Way to Store Information in Computer Memory

L. Liu et al., submitted to Nature Physics (2011).   
Oct 18, 2011
NYU Materials Research Science and Engineering Center (2014)

Self-Replication of DNA Nanotile Patterns

T. Wang, R. Sha, R. Dreyfus, M. E. Leunissen, C. Maass, D. J. Pine, P. M. Chaikin, and N. C. Seeman

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