Silicon solar cells with hybrid back contacts

G Genshun Wang M Mingzhe Yu H Hua Wu Y Yunpeng Li L Lei Xie J Junzhe Wei X Xiaoyu Deng S Shenghou Zhou T Tuan Yuan F Fei Luo Y Yunlai Yuan Z Zhipeng Huang X Xiyan Tang Q Qing Tang S Shi Yin H Haoran Qiu Y Yong Liu M Miao Yang C Chang Sun L Lu Wu H Hao Lin H Hanbo Tang Q Qiming Liu H Hao Liu J Jiansheng Chen X Xiaoning Ru F Feng Ye M Minghao Qu J Jianbo Wang J Junxiong Lu B Bo He L Lan Chen C Chaowei Xue P Pingqi Gao D Deyan He L Liang Fang X Xixiang Xu Z Zhenguo Li