Detection of finger interruptions in silicon solar cells using photoluminescence imaging*

Project supported by the National Natural Science Foundation of China (Grant Nos. 61504139 and 61275040) and the Fund from the Chinese Academy of Sciences (Grant No. Y072051002).

Zhang Lei1, 2, †, Liang Peng1, 2, Zhu Hui-Shi1, 2, Han Pei-De1, 2, ‡
       

(color online) Images of a monocrystalline solar cell with interrupted fingers induced by laser cutting. (a) EL image with an applied forward bias of 0.676 V. (b) PL image at an applied voltage of 0.476 V under 1-sun illumination. (c) RS,i image calculated by the C-DCR method.