利用水泥基辐射冷却器扩展太阳能电池的详细平衡建模

IF 8 2区 材料科学 Q1 ENERGY & FUELS
Matteo Cagnoni, Pietro Testa, Jorge S. Dolado, Federica Cappelluti
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引用次数: 0

摘要

降低太阳能电池的温度可以提高其效率和使用寿命。这可以通过辐射冷却来实现,这是一种被动而简单的方法,依靠材料在 8 至 13μm$$ 13kern0.1em \upmu \mathrm{m}$$ 之间的大气透明度窗口内通过热辐射将热量倾泻到外层空间。由于大多数辐射冷却器价格昂贵或可能紫外线不稳定,我们最近提出了基于水泥的解决方案,作为一种稳健且具有成本效益的替代方案。然而,所使用的评估模型描述的是辐射极限和与冷却器完美热耦合的电池,这与文献一致。在这项工作中,我们将奥格和肖克利-雷德-霍尔非辐射重组以及电池池/冷却器界面的有限传热系数纳入其中,从而提升了这两种近似值,获得了更接近现实的电池池/冷却器堆栈热描述,同时保留了详细平衡方法的普遍性和透明度。我们利用该模型证明,辐射冷却器提供的电池性能增益在辐射极限中被低估,因此在非辐射重组较强的器件中更为突出。此外,我们还量化了电池温度与电池/冷却器界面传热系数之间的关系,并展示了如何利用这种关系来确定设计要求。所开发的扩展模型以及由此产生的观测结果为太阳能电池新型辐射冷却器(包括水泥基冷却器)的实际实现提供了重要指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Extended detailed balance modeling toward solar cells with cement-based radiative coolers

Extended detailed balance modeling toward solar cells with cement-based radiative coolers

Extended detailed balance modeling toward solar cells with cement-based radiative coolers

Reducing the temperature of a solar cell increases its efficiency and lifetime. This can be achieved by radiative cooling, a passive and simple method relying on materials that dump heat into outer space by thermal emission within the atmosphere transparency window between 8 and 13 μ m. As most radiative coolers are expensive or possibly UV unstable, we have recently proposed cement-based solutions as a robust and cost-effective alternative. However, the assessment model used describes the cell in the radiative limit and with perfect thermal coupling to the cooler, in line with the literature. In this work, we lift these two approximations, by incorporating Auger and Shockley–Read–Hall nonradiative recombination and a finite heat transfer coefficient at the cell/cooler interface, to obtain a thermal description of the cell/cooler stack closer to reality, while preserving the universality and transparency of the detailed-balance approach. We use this model to demonstrate that the cell performance gains provided by a radiative cooler are underestimated in the radiative limit and are hence more prominent in devices with stronger nonradiative recombination. Furthermore, we quantify the relation between cell temperature and heat transfer coefficient at the cell/cooler interface and show how this can be used to define design requirements. The extended model developed, and the resulting observations provide important guidelines toward the practical realization of novel radiative coolers for solar cells, including cement-based ones.

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来源期刊
Progress in Photovoltaics
Progress in Photovoltaics 工程技术-能源与燃料
CiteScore
18.10
自引率
7.50%
发文量
130
审稿时长
5.4 months
期刊介绍: Progress in Photovoltaics offers a prestigious forum for reporting advances in this rapidly developing technology, aiming to reach all interested professionals, researchers and energy policy-makers. The key criterion is that all papers submitted should report substantial “progress” in photovoltaics. Papers are encouraged that report substantial “progress” such as gains in independently certified solar cell efficiency, eligible for a new entry in the journal''s widely referenced Solar Cell Efficiency Tables. Examples of papers that will not be considered for publication are those that report development in materials without relation to data on cell performance, routine analysis, characterisation or modelling of cells or processing sequences, routine reports of system performance, improvements in electronic hardware design, or country programs, although invited papers may occasionally be solicited in these areas to capture accumulated “progress”.
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