.Applications of laser precisely processing technology in solar cells[J].Optoelectronics Letters,2007,3(5):385-387 Applications of laser precisely processing technology in solar cells WANG Hong-jie CHENG Hua XIE Kang-wen LU Fu-yun DU Yong-chao [1]Institute of Physics, Nankai University, Tianjin 300071, China [2]18^th Research Institute, China Electronics Technology Group Corporation, Tianjin 300381,China Abstract:       According to the design method of laser resonator cavity, we optimized the primary parameters of resonator and utilized LD arrays symmetrically pumping manner to implementing output of the high-brightness laser in our laser cutter, then which was applied to precisely cutting the conductive film of CuInSe2 solar cells, the buried contact silicon solar cells' electrode groove, and perforating in wafer which is used to the emitter wrap through silicon solar cells. Laser processing precision was less than 40μm, the results have met solar cell's fabrication technology, and made finally the buried cells' conversion efficiency be improved from 18% to 21% . Hits: 3496 Download times: 195 View Full Text    Download reader