We have presented simplified industrial processes to fabricate high performance back‐junction back‐contact (BJBC) silicon solar cells. Good optical surface structures (solar averaged reflectance 2.5%) and high implied open‐circuit voltage (0.695 V) have been realized in the BJBC cell precursors through wet chemical processing, co‐diffusion, P ion implantation and annealing oxidation, as well as laser patterning and plasma enhanced chemical vapour deposition passivation processes. We have achieved a certified high efficiency of close to 22% on BJBC silicon solar cells with the size of 4.04 cm 2 by using screen printing and co‐firing technologies. The manufacturing process flow further successfully yields efficiency of around 21% BJBC silicon solar cells with enlarged sizes of 6 × 6 cm 2 . The present work has demonstrated that the commercialization of low‐cost and high‐efficiency BJBC solar cells is possible because we have used processes compatible with existing production lines. Copyright © 2017 John Wiley & Sons, Ltd. We have achieved a certified high efficiency of ~22% back‐junction back‐contact (BJBC) silicon solar cells with the size of 4.04 cm 2 by conventional industrial processes of co‐diffusion, P ion implantation and annealing oxidation, laser patterning as well as screen printing and co‐firing technologies. The manufacturing process flow further successfully yields the maximum efficiency of around 21% BJBC silicon solar cells with enlarged sizes of 6 × 6 cm 2 . This work has demonstrated the simplified processes for the low‐cost and high‐efficiency BJBC silicon solar cell industrialization.
Development of back‐junction back‐contact silicon solar cells based on industrial processes
Progress in photovoltaics ; 25 , 6
2017
Aufsatz (Zeitschrift)
Englisch
BKL: | 53.36 Energiedirektumwandler, elektrische Energiespeicher |
Co-diffused back-contact back-junction silicon solar cells
TIBKAT | 2015
|High-efficiency back-contact back-junction silicon solar cells
TIBKAT | 2010
|Back-contact back-junction silicon solar cells under UV illumination
Online Contents | 2010
|Loss analysis of back-contact back-junction thin-film monocrystalline silicon solar cells
TIBKAT | 2013
|