The latest cutting-edge technology, solar street lamps scenery complementary solar street lamps: high

The latest cutting-edge technology: solar street lamps, high conversion efficiency of black silicon solar cells aalto university, Finland ( 阿尔托大学) With the Spanish Catalonia polytechnic ( UniversitatPolitecnica de Catalunya） The researchers used 'black silicon'

the latest cutting-edge technology of solar street lamps, high conversion efficiency of black silicon solar cell according to the report, aalto university, Finland and Catalan institute of technology researchers using 'black silicon' technology to develop the conversion efficiency of up to 22. 1% of the solar cell. Relevant papers published in academic periodicals of the journal nature nanotechnology. Germany's fraunhofer ISE CalLab confirmed 22. The conversion efficiency of 1%. This is after the panasonic, sharp, and the solar energy and a successful experiment, the efficiency of more than 20%. It is reported that in recent years, an increasing number of traffic signal lamp pole was developed. The two college development is: (the main points of the black silicon technology 1) The surface processing growth is about 0. 8 microns of jianshan, reflection greatly reduced; ( 2) The back electrode type; ( 3) The front and back of the battery to form composite membrane resistance ( Passivation film) , thus reducing the electronics and carrier compound with an empty hole. Aalto university since 2012 on the black silicon technology research and development. The conversion efficiency reached 18 in October. 2%, up to 18 April 2013. 7%. In this experiment, the area of 9 square centimeters of the solar cell conversion efficiency could be improved by more than 3%, to 22. 1%. This time the conversion efficiency can greatly improve the reason for this is that when the battery resistance is formed on the surface of composite membrane, by atomic layer deposition ( ALD) Method form alumina ( 氧化铝) Layer, and thickness of layer - 20 nm The thickness of Al2O3 layer is optimized. Thus greatly reduce carrier compound. The solar battery adopts unique surface treatment technology, in 500 ~ 800 nm wavelength range, visible light reflectivity on the surface of the battery is almost less than 0. 5%. It is very suitable for use in high latitudes, when applied to the solar street light, will have a revolutionary influence on the scope of its use. According to the relevant information, sharp in 2014 using technology similar to the black silicon, in 1. 9 cm square ( 3. 6 cm square) The solar battery 'BLACKSOLAR' completed the conversion efficiency is 25. 1% of the experiment. In April 2015, launched the BLACKSOLAR technology of the conversion efficiency of pv panels products for more than 19. 1%. According to expert introduction, this technology will be use for solar street lamps and other solar power related industries have a huge role, make the inexhaustible, inexhaustible energy conservation and environmental protection green solar further benefit mankind.