#day sensitization

Pure professor of hillside plot of the university of island of Kyushu of Japan, developed the technology that could raise the day sensitization type power generating efficiency of solar battery a few days ago. It is reported, the resulting electricity increases by 14 times at most. Will cooperate with folk enterprise, will urge it to be practical as soon as possible.

The new technology uses several nanometers of diameter to gold corpuscle of several dozen nanometers. Taking out the surface of electrode of the electricity, the packed disposes gold corpuscle; The gold surface of corpuscle, spread make the light convert to the electric dyestuffs phthalocyanine, in order to increase to receive the photic surface area, raise the efficiency of power generating.

Professor YAMADA trial-produces the solar battery arranging corpuscle on the electrode of tin indium oxide, electric current produced after in order to study superficial irradiation. The optical switching in the visible light field of the wavelength 500 nanometer to 800 nanometer is the most effective; Current yield 1mW about 290 nanometers of resulting 700 nanometers of wavelength, it is far to increase by a wide margin 20 nanometers comparing with the time of there is no corpuscling.

Produce the space after the gold corpuscle heap, can increase the dyestuffs and shine the photic area. Meanwhile, will produce the so-called plasma phenomenon that metallic electrons shake collectively, it is said that has given play to the role of raising dyestuffs conversion efficiency too.

The ones that made the gold corpuscle shape and grew up 60 nanometer to 100 nanometer, diameter 10 nanometer to 20 nanometer are bar-shaped, photic wavelength of the electricity of active transition the most can be about nearing the infrared light of 1000 nanometers; And then change, for YinShi Cheng, find until 500 light reaction of wavelength best the intersection of painting and metal kind of dyestuffs by gold

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.