State of the art
The world is searching for advanced and more efficient technologies capable of generating low cost energy. Billions of Dollars are invested by leading companies into R&D, searching for such new Technologies.
One of these leading "Future" technologies is Photovoltaics (PV).
Today, most of the photovoltaics industry is based on Silicon. Silicon processing is complicated and expensive, which results in the high cost of PV modules. In addition, the efficiency of Silicon PV module is relatively low, around 20%.
Alternative technologies in the field of PV, such as thin film compounds (CIGS, CIS, CdTe) enable using simpler processes and may be less expensive but still do not improve efficiency.
The most efficient available PV Technology, which is reaching about 40% efficiency, is provided by “Boeing’s Spectrolab Company” with a multi-junction device, concentration and sun tracking systems. The device is made of a stack of seven junctions, each made from different compounds of thin films absorbing a wider sun spectrum. The process is complexand expensive, and requires high temperatures.
Although there is plenty of solar energy, the existing PV technologies cannot translate it to low cost electricity. The market is looking for a new generation of PV Technology that will dramatically improve efficiency and is produced in a simple low temperature process without increasing cost.
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