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Nanotechnology Spotlight

Behind the buzz and beyond the hype:
Our Nanowerk-exclusive feature articles

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Showing Spotlights 1617 - 1624 of 1663 in category All (newest first):

 

A nanocapacitor with giant dielectric permittivity

The area of nanodielectrics is relatively unexplored but research shows that nanocapacitors could find important applications for instance in energy storage and ultrasensitive transducers in nanoelectronic circuits.

Posted: Apr 14th, 2006

Quantum dot necklaces and other QD chains

For the past two years, the molecular-beam-epitaxy (MBE) group at the University of Arkansas has developed a novel growth procedure to laterally line up self-assembled InGaAs quantum dots (QDs).

Posted: Apr 12th, 2006

Quantum dots in a tube could open a new chapter in opto-electronics

Researchers in Germany managed to integrate quantum dots (QD) into the walls of nano- and microtubes. This novel structure serves as a quantum light emitter as well as optical waveguide. This represents a major step toward the realization of flexible high quality factor optical resonators based on tubes.

Posted: Apr 11th, 2006

Nanostructured colloidal systems inspired by nature

Recent work on bioinspired nanoscale colloidal systems is an example of the significant interest that the design and fabrication of nanostructured colloidal materials has created among scientists.

Posted: Apr 10th, 2006

Creating differently shaped and sized hollow nanospheres from a single template

Polymeric hollow nanospheres with high stability and controllable permeability have interesting potential applications associated with the controlled release of encapsulated active ingredients (e.g., drugs, vaccines, antibodies, hormones, pesticides, and fragrances) under well-defined conditions. Researchers in Singapore are now fabricating hollow nanostructures with different shapes using a single template.

Posted: Apr 7th, 2006

Micro/nano composite structure enhances performance of solar cells

A group of Chinese researchers prepared dye-sensitized solar cells using micro/nanocomposite TiO2 porous films, resulting in cells with enhanced light collection. They applied a technique which can produce a large area in continuous fabrication. This technique opens an alternative way for manufacturing solar cells on an industrial scale.

Posted: Apr 6th, 2006

Electrochemical probes with nanometer dimensions

Researchers in Finland and The Netherlands demonstrated that it is possible to grow and wire a single platinum nanoparticle using a single-walled carbon nanotube, thus providing a bottom-up approach to building nanoelectrodes.

Posted: Apr 5th, 2006