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Limiting-Efficiency Assessment on Advanced Crystalline Silicon Solar Cells with Auger Ideality Factor and Wafer Thickness Modifications
  • +5
  • Qiao Su,
  • Hao Lin,
  • Genshun Wang,
  • Hanbo Tang,
  • Chaowei Xue,
  • Zhenguo Li,
  • Xixiang Xu,
  • Pingqi Gao
Qiao Su
Sun Yat-sen University - Shenzhen Campus
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Hao Lin
Sun Yat-sen University - Shenzhen Campus
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Genshun Wang
Sun Yat-sen University - Shenzhen Campus
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Hanbo Tang
Sun Yat-sen University - Shenzhen Campus
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Chaowei Xue
LONGi Green Energy Technology Co Ltd
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Zhenguo Li
LONGi Green Energy Technology Co Ltd
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Xixiang Xu
LONGi Green Energy Technology Co Ltd
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Pingqi Gao
Sun Yat-sen University - Shenzhen Campus

Corresponding Author:[email protected]

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Abstract

With the improvement of surface passivation, bulk recombination is becoming an indispensable and decisive factor to assess the limiting efficiency ( η lim ) of crystalline silicon (c-Si) solar cells. In simultaneous consideration of surface and bulk recombination, a modified model of η lim   evaluation is developed. Surface recombination is directly depicted with contact selectivity while bulk recombination is revised on the aspects of ideality factor and wafer thickness. The η lim of cutting-edge photovoltaic technologies, double-side tunneling-oxide passivating contact (TOPCon) and silicon heterojunction (SHJ) solar cells, are numerically simulated using the new model as 28.73% and 29.00%, respectively. Hybrid solar cells consisting of n-type TOPCon contact and p-type SHJ contact can approach an η lim as high as 29.18% at the optimal wafer thickness ( W opt ) of 103 μm . Our results are instructive in accurately assessing efficiency potential and accordingly optimizing design strategies of c-Si solar cells.
20 Mar 2023Review(s) Completed, Editorial Evaluation Pending
20 Mar 2023Submitted to Progress in Photovoltaics
20 Mar 2023Assigned to Editor
20 Mar 2023Submission Checks Completed
16 Apr 2023Reviewer(s) Assigned
16 Jul 2023Editorial Decision: Revise Major
14 Sep 20231st Revision Received
22 Sep 2023Assigned to Editor
22 Sep 2023Review(s) Completed, Editorial Evaluation Pending
22 Sep 2023Submission Checks Completed
01 Oct 2023Reviewer(s) Assigned
06 Nov 2023Editorial Decision: Revise Major
23 Jan 2024Editorial Decision: Revise Minor
26 Jan 20243rd Revision Received
26 Jan 2024Assigned to Editor
26 Jan 2024Submission Checks Completed
26 Jan 2024Review(s) Completed, Editorial Evaluation Pending
28 Jan 2024Editorial Decision: Accept