Discovery of 'doping' mechanism in semiconductor nanocrystals

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Novel electronic devices based upon nanotechnology may soon be realized due to a new understanding of how impurities, or 'dopants,' can be intentionally incorporated into semiconductor nanocrystals. This understanding, announced today by researchers at the Naval Research Laboratory (NRL) and the University of Minnesota (UMN), should help enable a variety of new technologies ranging from high-efficiency solar-cells and lasers to futuristic 'spintronic' and ultra-sensitive biodetection devices. The complete findings of the study are published in the July 7, 2005, issue of the journal Nature.


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All News summaries for July 07, 2005

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Oct 07, 2008 | User rating: not rated yet
(PhysOrg.com) -- From petroleum to food and beverage to pharmaceuticals, most industries use mechanical pumps, and all these pumps rely on seals to reduce leaks and maintenance costs. Argonne researchers, ...

New knowledge about thermoelectric materials could give better energy efficiency

Oct 07, 2008 | User rating: not rated yet
Thermoelectric materials can be assembled into units, which can transform the thermal difference to electrical energy or vice versa – electrical current to cooling. An effective utilization requires however that the material ...

Nanoscopic screening process to speed drug discovery

Oct 06, 2008 | User rating: not rated yet
Researchers at Wake Forest University are using nanotechnology to search for new cancer-fighting drugs through a process that could be up to 10,000 times faster than current methods.

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Oct 06, 2008 | User rating: not rated yet
With nanotechnology yielding a burgeoning menagerie of microscopic pumps, motors, and other machines for potential use in medicine and industry, here is one good question: How will humans turn those devices ...

New material could speed development of hydrogen powered vehicles

Oct 06, 2008 | User rating: not rated yet
Researchers in Greece report design of a new material that almost meets the U.S. Department of Energy (DOE) 2010 goals for hydrogen storage and could help eliminate a key roadblock to practical hydrogen-powered ...