Accurately quantifying the recombination pathways unique in back contact solar cells

IF 6.3 2区材料科学 Q2 ENERGY & FUELS

Solar Energy Materials and Solar Cells Pub Date : 2024-11-16 DOI:10.1016/j.solmat.2024.113277

Genshun Wang , Hao Lin , Hua Wu , Tingting Wang , Qiao Su , Chaowei Xue , Liang Fang , Xixiang Xu , Pingqi Gao

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引用次数: 0

Abstract

With the rapid development of back contact (BC) solar cells, more refined characterization methods are eagerly required to match the evolving technology. Specifically, methodologies capable to accurately quantify the recombination values near the hole-selective contact (HSC)/Gap boundary are still lacking. Hence, we perform simulations using a simplified recombination model to re-specify the perimeter recombination in heterojunction back contact (HBC) solar cells on the prerequisite of excellent surface passivation. And then an innovative characterization method is developed to precisely extract the recombination current values of various regions. Moreover, our method is powerful in accurate localization of the defective regions, e.g., perimeter recombination, junction recombination, or leakage recombination issue, rendering sequentially target-oriented response much easier. We clarify the role relationship and the influence extent between the characteristic parameters and the intrinsic properties of HBC solar cells. Also, we believe the full utilization of the proposed method could accelerate the development of BC solar cells to a new level.

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精确量化背接触太阳能电池特有的重组途径

随着背接触（BC）太阳能电池的快速发展，急需更精细的表征方法来匹配不断发展的技术。具体来说，目前仍然缺乏能够准确量化空穴选择性接触 (HSC) / 间隙边界附近的重组值的方法。因此，我们使用简化的重组模型进行模拟，在表面钝化效果极佳的前提下，重新确定异质结背接触（HBC）太阳能电池中的周界重组。然后开发了一种创新的表征方法，以精确提取各区域的重组电流值。此外，我们的方法还能精确定位缺陷区域，如周边重组、结重组或泄漏重组问题，从而更容易采取有针对性的应对措施。我们阐明了特征参数与 HBC 太阳能电池内在特性之间的作用关系和影响程度。同时，我们相信，充分利用所提出的方法可以将 BC 太阳能电池的发展加速到一个新的水平。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Solar Energy Materials and Solar Cells 工程技术-材料科学：综合

CiteScore

12.60

自引率

11.60%

发文量

513

审稿时长

47 days

期刊介绍： Solar Energy Materials & Solar Cells is intended as a vehicle for the dissemination of research results on materials science and technology related to photovoltaic, photothermal and photoelectrochemical solar energy conversion. Materials science is taken in the broadest possible sense and encompasses physics, chemistry, optics, materials fabrication and analysis for all types of materials.