We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Prediction of sub-pyramid texturing as the next step towards high efficiency silicon heterojunction solar cells.
- Authors
Chu, Feihong; Qu, Xianlin; He, Yongcai; Li, Wenling; Chen, Xiaoqing; Zheng, Zilong; Yang, Miao; Ru, Xiaoning; Peng, Fuguo; Qu, Minghao; Zheng, Kun; Xu, Xixiang; Yan, Hui; Zhang, Yongzhe
- Abstract
The interfacial morphology of crystalline silicon/hydrogenated amorphous silicon (c-Si/a-Si:H) is a key success factor to approach the theoretical efficiency of Si-based solar cells, especially Si heterojunction technology. The unexpected crystalline silicon epitaxial growth and interfacial nanotwins formation remain a challenging issue for silicon heterojunction technology. Here, we design a hybrid interface by tuning pyramid apex-angle to improve c-Si/a-Si:H interfacial morphology in silicon solar cells. The pyramid apex-angle (slightly smaller than 70.53°) consists of hybrid (111)0.9/(011)0.1 c-Si planes, rather than pure (111) planes in conventional texture pyramid. Employing microsecond-long low-temperature (500 K) molecular dynamic simulations, the hybrid (111)/(011) plane prevents from both c-Si epitaxial growth and nanotwin formation. More importantly, given there is not any additional industrial preparation process, the hybrid c-Si plane could improve c-Si/a-Si:H interfacial morphology for a-Si passivated contacts technique, and wide-applied for all silicon-based solar cells as well. The unexpected crystalline silicon epitaxial growth and interfacial nanotwins formation remain a challenging issue for silicon heterojunction technology. Here, the authors design a hybrid interface by tuning pyramid apex-angle to improve c-Si/a-Si:H interfacial morphology in silicon solar cells.
- Subjects
SILICON solar cells; PHOTOVOLTAIC power systems; SOLAR cell efficiency; EPITAXY; SOLAR cells; AMORPHOUS silicon
- Publication
Nature Communications, 2023, Vol 14, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-39342-3