Compared with conventional electric power generation systems, the solid oxide fuel cell （SOFC） has many advantages because of its unique features. High temperature SOFC has been successfully developed to its commerc...Compared with conventional electric power generation systems, the solid oxide fuel cell （SOFC） has many advantages because of its unique features. High temperature SOFC has been successfully developed to its commercial applications, but it still faces many problems which hamper large-scale commercial applications of SOFC. To reduce the cost of SOFC, intermediate temperature solid oxide fuel cell （IT-SOFC） is presently under rapid development. The status of IT-SOFC was reviewed with emphasis on discussion of their component materials. 2008 University of Science and Technology Beijing. All rights reserved.展开更多
Honeycomb structure is extraordinarily effective to trap light,and the efficiency of solar cell with this texture is as high as 24.4%.In this paper,plasma immersion ion implantation and acid etching are applied to tex...Honeycomb structure is extraordinarily effective to trap light,and the efficiency of solar cell with this texture is as high as 24.4%.In this paper,plasma immersion ion implantation and acid etching are applied to texture multi-crystalline silicon.Surface reflectivity and surface morphology are investigated by UV–Vis–NIR spectrophotometer and field emission scanning electron microscopy,respectively.We found that random nano-honeycomb structures have been formed on silicon surface.The weighted average reflectance is 7.68%from 300 to 1,100 nm wavelength region.We obtained honeycomb-textured solar cells following standard fabrication protocol.These solar cells show obvious better performance in short circuit current density([5.4%)and efficiency(*0.8%absolute)compared with acid-textured cell,while other performance parameters,such as open circuit voltage and fill factor,are not deteriorated.展开更多
基金the National Basic Research Program of China(No.2007CB936201)the National High Technology Research and Development Program of China(863 Program)(No.2006AAO3Z351)the Major International(Regional)Joint Research Program of China(No.50620120439,2006DFB51000).
文摘Compared with conventional electric power generation systems, the solid oxide fuel cell （SOFC） has many advantages because of its unique features. High temperature SOFC has been successfully developed to its commercial applications, but it still faces many problems which hamper large-scale commercial applications of SOFC. To reduce the cost of SOFC, intermediate temperature solid oxide fuel cell （IT-SOFC） is presently under rapid development. The status of IT-SOFC was reviewed with emphasis on discussion of their component materials. 2008 University of Science and Technology Beijing. All rights reserved.
基金supported by the National Natural Science Foundation of China(607227003 and 61106060)the Instrument Developing Project of the Chinese Academy Sciences(YZ200755)
文摘Honeycomb structure is extraordinarily effective to trap light,and the efficiency of solar cell with this texture is as high as 24.4%.In this paper,plasma immersion ion implantation and acid etching are applied to texture multi-crystalline silicon.Surface reflectivity and surface morphology are investigated by UV–Vis–NIR spectrophotometer and field emission scanning electron microscopy,respectively.We found that random nano-honeycomb structures have been formed on silicon surface.The weighted average reflectance is 7.68%from 300 to 1,100 nm wavelength region.We obtained honeycomb-textured solar cells following standard fabrication protocol.These solar cells show obvious better performance in short circuit current density([5.4%)and efficiency(*0.8%absolute)compared with acid-textured cell,while other performance parameters,such as open circuit voltage and fill factor,are not deteriorated.
