News tagged with light antennae

Making a light-harvesting antenna from scratch

(PhysOrg.com) -- Sometimes when people talk about solar energy, they tacitly assume that we're stuck with some version of the silicon solar cell and its technical and cost limitations. Not so.

Chemistry / Materials Science

created Nov 29, 2011 | popularity 4.8 / 5 (15) | comments 1 | with audio podcast

Nanoscientists build antenna for light

University of Toronto researchers have derived inspiration from the photosynthetic apparatus in plants to engineer a new generation of nanomaterials that control and direct the energy absorbed from light.

Nanotechnology / Nanophysics

created Jul 10, 2011 | popularity 4.8 / 5 (18) | comments 2 | with audio podcast

Researchers adapt classic antennas to harness more power from the sun

Some solar devices, like calculators, only need a small panel of solar cells to function. But supplying enough power to meet all our daily needs would require enormous solar panels. And solar-powered energy collected by panels ...

Physics / General Physics

created Nov 10, 2011 | popularity 4.1 / 5 (7) | comments 0 | with audio podcast

Biologists identify light-regulated mechanism in cyanobacteria as aid to optimizing photosynthesis

(PhysOrg.com) -- Indiana University biologists have uncovered how a control system works in producing the important light-harvesting antennae that power photosynthesis in cyanobacteria, the microorganisms ...

Biology / Cell & Microbiology

created Nov 03, 2011 | popularity 5 / 5 (1) | comments 4

Bimetallic nanoantenna separates colors of light

Researchers at Chalmers University of Technology have built a very simple nanoantenna that directs red and blue colours in opposite directions, even though the antenna is smaller than the wavelength of light. ...

Nanotechnology / Nanophysics

created Sep 23, 2011 | popularity 4.7 / 5 (6) | comments 3 | with audio podcast

Neutron analysis yields insight into bacteria for solar energy

Structural studies of some of nature's most efficient light-harvesting systems are lighting the way for new generations of biologically inspired solar cell devices.

Biology / Cell & Microbiology

created Mar 23, 2011 | popularity 5 / 5 (4) | comments 0 | with audio podcast

First step to converting solar energy using 'artificial leaf'

An international team of researchers has modified chlorophyll from an alga so that it resembles the extremely efficient light antennae of bacteria. The team was then able to determine the structure of these light antennae. ...

Chemistry / Biochemistry

created Jun 29, 2009 | popularity 4.7 / 5 (10) | comments 0

Putting light-harvesters on the spot

How the light-harvesting complexes required for photosynthesis get to their site of action in the plant cell is reported by RUB biologists in the Journal of Biological Chemistry. The team led by Prof. Dr. Danja Schunemann has de ...

Chemistry / Biochemistry

created Oct 19, 2011 | popularity not rated yet | comments 0

'Low tech' light in neutron beam illuminates photosynthesis in bacteria

(PhysOrg.com) -- Researchers at the Bio-SANS instrument at the High Flux Isotope Reactor are getting a leg up in their research from an ingenious "low tech" lighting tool that can be fixed to their samples ...

Chemistry / Analytical Chemistry

created Sep 28, 2011 | popularity not rated yet | comments 1

Smallest nanoantennas for high-speed data networks

More than 120 years after the discovery of the electromagnetic character of radio waves by Heinrich Hertz, wireless data transmission dominates information technology. Higher and higher radio frequencies are ...

Nanotechnology / Nanophysics

created Oct 20, 2009 | popularity 3 / 5 (4) | comments 0