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...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 CulnSe2 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 fmally the buried cells＇ conversion efficiency be improved from 18% to 21%.展开更多
基金This work was supported by the Student’s Innovating Foundationin Nankai University.
文摘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 CulnSe2 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 fmally the buried cells＇ conversion efficiency be improved from 18% to 21%.
