Screening and optimization of metal-insulator-metal selective emitter in thermophotovoltaic system

IF 1.8 4区物理与天体物理 Q3 PHYSICS, APPLIED

Modern Physics Letters B Pub Date : 2023-12-12 DOI:10.1142/s0217984924501458

Kangming Ren, Canglong Wang, Jitao Liu, Yafeng Shu, Haohao Zhang, P. Qi, Xueren Hong, Qing-Qing Liang

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引用次数: 0

Abstract

In thermophotovoltaic (TPV) systems, it is crucial that the selective emitters can tailor emission spectrum to match the bandgap of photovoltaic (PV) cells and largely enhance the system efficiency. In this work, a metamaterial emitter based on the metal-insulator-metal (MIM) structure is proposed to obtain the high energy conversion efficiencies. The geometric parameters of MIM emitter have been investigated to obtain an excellent radiation spectrum of emitter composed of W and HfO2. The excellent emission performance of MIM emitter is attributed to the excitation of surface plasmon polariton (SPP) and cavity resonance, and the structure of MIM emitter is insensitive for different polarization modes. The 21 material combinations of MIM emitters have been screened to obtain the optimal emitter matching GaSb and InGaAsSb cells. This work identifies the crucial role of structure and materials into the emitter of a TPV system. In the evaluation of MIM emitter and TPV System, when the operating temperature of emitter increases from 1400[Formula: see text]K to 2000[Formula: see text]K, the system efficiency of optimal W/HfO2/W MIM emitter increases from 20.26% to 30.41%, while the output electric power increases from 3.59[Formula: see text]kW/m2 to 42.48[Formula: see text]kW/m2. The phenomenon indicates that the MIM emitter with the optimal material combinations and geometric parameters can significantly improve the matching degree with GaSb and InGaAsSb cells. Our results will be helpful to expand the optimization scope of metamaterial emitters in TPV systems.

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筛选和优化热光电系统中的金属-绝缘体-金属选择性发射器

在热光电（TPV）系统中，关键是选择性发射器能调整发射光谱，使之与光伏（PV）电池的带隙相匹配，并在很大程度上提高系统效率。本研究提出了一种基于金属-绝缘体-金属（MIM）结构的超材料发射器，以获得较高的能量转换效率。通过研究 MIM 发射器的几何参数，获得了由 W 和 HfO2 组成的发射器的优异辐射光谱。MIM 发射器优异的发射性能得益于表面等离子体极化子（SPP）的激发和空腔共振，而且 MIM 发射器的结构对不同的极化模式不敏感。通过对 21 种材料组合的 MIM 发射器进行筛选，获得了与 GaSb 和 InGaAsSb 电池相匹配的最佳发射器。这项工作确定了结构和材料在冠捷光电系统发射器中的关键作用。在对 MIM 发射极和冠捷系统的评估中，当发射极的工作温度从 1400[计算公式见正文]K 上升到 2000[计算公式见正文]K，最优 W/HfO2/W MIM 发射极的系统效率从 20.26% 上升到 30.41%，而输出功率从 3.59[计算公式见正文]kW/m2 上升到 42.48[计算公式见正文]kW/m2。这一现象表明，采用最佳材料组合和几何参数的 MIM 发射极可以显著提高与 GaSb 和 InGaAsSb 电池的匹配度。我们的研究结果将有助于扩大超材料发射器在冠捷系统中的优化范围。

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

Modern Physics Letters B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

10.50%

发文量

235

审稿时长

5.9 months

期刊介绍： MPLB opens a channel for the fast circulation of important and useful research findings in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low-dimensional materials. The journal also contains a Brief Reviews section with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.