The impact of interface recombination on the external quantum efficiency of silicon solar cells

IF 6.3 2区材料科学 Q2 ENERGY & FUELS Solar Energy Materials and Solar Cells Pub Date : 2024-05-23 DOI:10.1016/j.solmat.2024.112953

Qing Yang , Karsten Bittkau , Alexander Eberst , Uwe Rau , Kaining Ding

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Abstract

In various types of organic/inorganic solar cells, optical response enhancement is consistently observed within the external quantum efficiency spectra owing to the improvement in interface passivation and the suppression of carrier recombination. In this study, we focused on crystalline silicon solar cells and systematically investigated the impact of interface recombination on the optical response upon dual-side illumination using numerical simulations. The results shed light on the interesting phenomenon that the surface recombination velocity has a significant impact on the external quantum efficiency, and it changes as the illumination direction changes. Moreover, from a practical perspective, the spectra of external quantum efficiency under dual-side illumination conditions can act as a powerful tool for the quick diagnosis of the passivation quality at the top and bottom interfaces.

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界面重组对硅太阳能电池外部量子效率的影响

在各种类型的有机/无机太阳能电池中，由于界面钝化的改善和载流子重组的抑制，在外部量子效率光谱内不断观察到光学响应的增强。在本研究中，我们以晶体硅太阳能电池为研究对象，利用数值模拟系统研究了双面照射时界面重组对光学响应的影响。研究结果揭示了一个有趣的现象，即表面重组速度对外部量子效率有显著影响，并且随着光照方向的改变而变化。此外，从实用角度来看，双面照明条件下的外部量子效率光谱可以作为快速诊断上下界面钝化质量的有力工具。

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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.