New Material to Increase Solar Cell Efficiency

A team of researchers has come up with a solar cell that produces fuel rather than electricity. A material called gallium phosphide enables the solar cell to produce clean fuel hydrogen gas from liquid water.

To connect an existing silicon solar cell to a battery that splits the water may well be an efficient solution; but it is very expensive.

So, researchers were streamlining their search to a semi-conductor material that is able to both convert sunlight into an electrical charge and split water.

The team found gallium phosphide (GaP), a compound of gallium and phosphide, useful in this respect.

GaP has good electrical properties but the drawback is that it cannot easily absorb light when it is a large flat surface as used in GaP solar cells, said the study thatappeared in Nature Communications.

The researchers overcame this by making a grid of very small GaP nanowires, measuring five hundred nanometres (a millionth of a millimetre) long and ninety nanometres thick.

"That makes these kinds of cells potentially a great deal cheaper," said lead author Erik Bakkers from Eindhoven University of Technology, the Netherlands.  Cont'd...

Comments (0)

This post does not have any comments. Be the first to leave a comment below.


Post A Comment

You must be logged in before you can post a comment. Login now.

Featured Product

Sun Xtender® Deep Cycle AGM Batteries

Sun Xtender® Deep Cycle AGM Batteries

Sun Xtender® Deep Cycle AGM Batteries for renewable energy storage are manufactured in the USA by Concorde Battery Corporation and are built to the same demanding standards crucial to supporting the aircraft industry. To facilitate maximum conductivity & charge acceptance Sun Xtender® batteries are constructed with copper alloy corrosion free terminals & robust intercell connections. Endurance and optimal float life are achieved through plates thicker than the industry standard. Sun Xtender® Batteries' AGM maintenance free design is an ideal solution for off grid and grid tied systems.