摘要
We report an approach of high-pressure hydrogenation to improve the performance of crystalline Si(c-Si) solar cells.As-received p-type c-Si wafer-based PN junctions were subjected to high-pressure(2.5 MPa) hydrogen atmosphere at 200 ℃,followed by evaporating antireflection layers,passivation layers,and front and rear electrodes.The efficiency of the so prepared c-Si solar cell was found to increase evidently after high-pressure hydrogenation,with a maximal enhancement of 10%.The incorporation of hydrogen by Si solar cells was identified,and hydrogen passivation of dangling bonds in Si was confirmed.Compared to the regular approach of hydrogen plasma passivation,the approach of high-pressure hydrogenation reported here needs no post-hydrogenation treatment,and can be more convenient and efficient to use in improving the performances of the c-Si and other solar cells.
作者
戴希远
张宇宸
王亮兴
胡斐
于志远
李帅
李树杰
杨新菊
陆明
Xi-Yuan Dai;Yu-Chen Zhang;Liang-Xin Wang;Fei Hu;Zhi-Yuan Yu;Shuai Li;Shu-Jie Li;Xin-Ju Yang;Ming Lu(Department of Optical Science and Engineering and Shanghai Ultra-Precision Optical Manufacturing Engineering Center,Fudan University,Shanghai 200433,China;School of Microelectronics,Fudan University,Shanghai 200433,China;Department of Physics,Fudan University,Shanghai 200433,China)
基金
Project supported by the National Natural Science Foundation of China(Grant No.62075044)
the Shanghai Science and Technology Committee,China(Grant No.18JC1411500)
the CIOMP–Fudan University Joint Foundation(Grant No.FC2017-001).