利用二维光子晶体增强太阳能收集的高效宽带太阳能吸收器的设计

IF 2.5 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-06-30 DOI:10.1016/j.optcom.2025.132178

Sichuan Liu , Gang Lin , Zhao Liu , Guoliang Yin

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引用次数: 0

摘要

高效的宽带太阳能吸收器可以显著提高系统的太阳能吸收效率。本文基于二维光子晶体模型，采用时域有限差分（FDTD）方法设计并提出了一种高效的太阳能吸收体。二维光子晶体的复杂结构导致光波在传播过程中多次反射，从而产生较高的光吸收率，使其在太阳能吸收领域得到广泛应用。吸收体是由Ti作为衬底，周期性地用SiO2填充方形三维腔体构成的。平均吸收率达到94.37%，其中在空气质量1.5（AM1.5）条件下（280 ~ 4000 nm）的加权平均吸收率为95.05%。根据电场分析，该模型的强吸收主要是通过SiO2固柱与Ti衬底之间的表面等离子体共振吸收，以及SiO2固柱腔内部光波干涉共振吸收来实现的。

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Design of a high-efficiency broadband solar absorber utilizing two-dimensional photonic crystals for enhanced solar energy harvesting

An efficient broadband solar absorber can significantly enhance the system's solar absorption efficiency. Based on two-dimensional photonic crystal model, this article designs and proposes an efficient solar absorber, using finite-difference time-domain (FDTD) method. The complex structure of two-dimensional photonic crystals leads to multiple reflections of light waves during propagation, resulting in relatively high light absorption, making them widely used in the field of solar energy absorption. The absorber is constructed by using Ti as the substrate and periodically filling square three-dimensional cavities with SiO₂. The average absorption rate achieves 94.37 %, with a weighted average absorption rate of 95.05 % under Air Mass 1.5(AM1.5) conditions (280-4000 nm). According to electric field analysis, the strong absorption of this model is mainly achieved through surface plasmon resonance absorption between SiO₂ solid columns and Ti substrates, as well as internal light wave interference resonance absorption in the SiO₂ solid column cavity.

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.