Comprehensive voltage-loss analysis and reduction of radiative recombination voltage loss in quantum-structured solar cells

IF 6.3 2区材料科学 Q2 ENERGY & FUELS Solar Energy Materials and Solar Cells Pub Date : 2024-05-30 DOI:10.1016/j.solmat.2024.112957

Meita Asami , Maui Hino , Gan Li , Kentaroh Watanabe , Yoshiaki Nakano , Masakazu Sugiyama

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Abstract

Voltage-loss analysis is essential in the development of next-generation solar cells, such as perovskite, chalcopyrite, kesterite, and nano/quantum-structured solar cells. Voltage-loss analysis provides valuable insights into how the energy conversion efficiency of solar cells can be enhanced. However, a comprehensive and accurate method to evaluate the voltage loss in quantum-structured solar cells is lacking. This study establishes and demonstrates a quantitative voltage-loss analysis based on detailed balance theory. This analysis reveals the relationship between external quantum efficiency and radiative recombination voltage loss in quantum-structured solar cells. Based on the results of the analysis, we designed and fabricated a novel low-voltage loss quantum-structured solar cell. Radiative recombination in the quantum-structured solar cell was successfully suppressed by steepening the absorption edge. This voltage-loss analysis facilitates the development of next-generation solar cells.

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量子结构太阳能电池的全面电压损耗分析和辐射重组电压损耗的降低

电压损耗分析对于下一代太阳能电池（如过氧化物太阳能电池、黄铜矿太阳能电池、钾长石太阳能电池和纳米/量子结构太阳能电池）的开发至关重要。电压损失分析为如何提高太阳能电池的能量转换效率提供了宝贵的见解。然而，目前还缺乏一种全面而准确的方法来评估量子结构太阳能电池的电压损失。本研究以详细的平衡理论为基础，建立并演示了一种定量电压损失分析方法。该分析揭示了量子结构太阳能电池中外部量子效率与辐射重组电压损失之间的关系。根据分析结果，我们设计并制造了一种新型低电压损耗量子结构太阳能电池。通过使吸收边陡峭化，成功抑制了量子结构太阳能电池中的辐射重组。这种电压损耗分析有助于下一代太阳能电池的开发。

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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.