Recently, the Institute of Microelectronics is located under the transformation based on the principle of efficient crystalline silicon solar cell research in progress.
New World Solar Energy Industry In recent years the rapid development of crystalline silicon photovoltaic cells is still in mainstream, occupying 78% market share. According to industry forecasts, over the next 10 to 15 years within the crystalline silicon photovoltaic cells will continue to occupy dominant market position. Theoretical limit of crystalline silicon cell efficiency of 31% (called Shockley-Queisser limit, SQ limit), how to break the SQ limit, greatly improve the utilization of sunlight, is the world’s photovoltaic research and industry is very concerned about hot research.
Institute of Microelectronics, Chinese Academy of Sciences Laboratory of microwave devices and integrated circuits (four rooms) Jia Rui researchers led by high-performance solar cell research team led by the strong support and leadership of the office, the first in China on semiconductor nano-materials under the conversion efficiency of crystalline silicon solar cells, nano-materials through the use of semiconductor quantum confinement effect size width can be adjusted to increase the response to short wavelength light band.
The discussion group has successfully developed a new type of semiconductor nonmaterial, the new width of the semiconductor material can be according to size, materials, components, etc. and flexible adjustment. The next conversion materials and mass production-type 125mm × 125mm crystal silicon substrates were developed for the next conversion efficiency crystalline silicon cells. Cells are encapsulated in the corresponding post-tests show that the down-conversion crystal silicon cells increased significantly in the 300-630nm band of light absorption and utilization of spectral response rate of increase by 10%, significantly improved the crystalline silicon cells performance.
Jia Rui researchers have been invited to convene in August 2010 the Second International Photovoltaic Forum on China-EU made a special report, elaborated and presented the research results have been Chinese and foreign experts and industry recognition and praise, for the Institute of Microelectronics research in the area where the solar cells laid a good foundation.