Splitting Water Using Semiconductor
The splitting of water using a semiconductor immersed into an aqueous solution has been termed the Holy Grail of photoelectrochemistry. Many photoelectrochemical systems have shown the ability to use sunlight to split water into hydrogen and oxygen, however, none to this point have done it with this efficiency. The promise of this device is that is shows us it is possible to take two of our most abundant natural resources, sunlight and water, and with high efficiency, directly generate an energy carrier, hydrogen, that is non-polluting and totally recyclable. Photographed at the National Renewable Energy Laboratory site in Golden, Colorado, USA, in 1998.
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