solar energy

04/13/2014 - 12:00

A new study using a photosensitive molecule, azobenzene and carbon nanotubes demonstrates the feasibility of developing solar thermal fuels with significantly increased energy storage capacity.

 

01/21/2014 - 09:47

A new approach to harvesting solar energy, developed by MIT researchers, could improve efficiency by using sunlight to heat a high-temperature material whose infrared radiation would then be collected by a conventional photovoltaic cell. This technique could also make it easier to store the energy for later use, the researchers say.

 

01/02/2014 - 07:55

Researchers have tried a variety of methods to develop detectors that are responsive to a broad range of infrared light — which could form imaging arrays for security systems, or solar cells that harness a broader range of sunlight’s energy — but these methods have all faced limitations. Now, a new system developed by researchers at five institutions, including MIT, could eliminate many of those limitations.

 

09/06/2013 - 08:46

North Carolina State University researchers have come up with a new technique for improving the connections between stacked solar cells, which should improve the overall efficiency of solar energy devices and reduce the cost of solar energy production. The new connections can allow these cells to operate at solar concentrations of 70,000 suns worth of energy without losing much voltage as “wasted energy” or heat.

 

05/15/2013 - 14:04

Using a powerful combination of microanalytic techniques that simultaneously image photoelectric current and chemical reaction rates across a surface on a micrometer scale, researchers at the National Institute of Standards and Technology (NIST) have shed new light on what may become a cost-effective way to generate hydrogen gas directly from water and sunlight.

 

10/26/2012 - 17:39

It has been 6 years since Mason et al. [ApJ, 647, L65-L68, 2006] drew attention to a remarkable
aspect of the behavior of energetic ions in some solar energetic particle (SEP) events. If the intensity
histories j(E,t) of ions of two species (O and Fe) were compared for two different values of
energy/nucleon (EO≠EFe) by normalizing their hour-averaged intensities near the maximum of the event,
their histories remained almost identical for more than a day.