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

Solar FlexRack - TDP 2.0 Solar Tracker with BalanceTrac

Solar FlexRack - TDP 2.0 Solar Tracker with BalanceTrac

Solar FlexRack's latest solar tracker technology bundles an advanced tracker design with a full team of seasoned engineering and installation experts at your service. The next-generation solar tracker delivers a package of features that both enable increased energy yields for commercial and utility-scale solar installations, and significantly reduce project risks. That translates to smart installation cost-savings across your project budget.