Day sensitization solar battery will be used in pilotless plane
According to daily scientific net report on July 27 of U.S.A., because of possessing better photoelectric conversion efficiency and good augmentability, solar battery of day sensitization (DSSCs) Extremely probably on not using for, having man-machine in recent years, in order to make it have long the intersection of flight and distance in case of non-refuelling.
University of Washington jointly tackles key problems in the group (MURI) multi-disciplinarily Sri Lankan Tayyab person getting more transparent one items to be more carry on for solar battery research of applying to aircraft flexible. It is introduced, DSSCs and structure of the traditional silicon department solar battery are different, the dyestuffs in its semiconductor surface of nanometer can catch the photon and turn it into electrons. This kind of solar battery has better photoelectric conversion efficiency and good expansion characteristic, it is apter to popularize in price.
Several years ago, this group has used this kind of technology on the wing of a toy plane. The solar battery has succeeded in driving the propeller on plane of toys, but because glass group is overweight and fails to finish taking off. Tested many times, researchers have adopted the technology of the hull cell finally, the test plane which used the solar battery of light membrane took a flight test and succeeded at last.
This group is devoted to developing and appearing to accumulate greater with higher, more flexible photoelectric conversion efficiency DSSCs coating at present, in order to apply it to pilotless plane of the air force of U.S.A.. But generally speaking, with the increase of the area, the conversion efficiency of the solar battery will decay gradually. In order to solve this problem, this group has used a kind of metal mesh technology, the resistance of the surface of the membrane of alterable solar battery, accelerate current transition, thus guarantee while the area increases, conversion efficiency is not influenced. But the tower of Sri Lankan is inferior says, there are not man-machine survivability and weight to the battery that all have very rigorous requirements, this technology will also face many problems if this technology should move to maturity.
(Editor: xiaoyao)