Perovskite-type oxide films combined with gratings for reduction of material consumption and improvement of thermochromism property

被引：17

作者：

Huang, Jinguo ^{[1
]}

Xuan, Yimin ^{[1
]}

Li, Qiang ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Energy & Power Engn, Nanjing 210094, Peoples R China

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2011年 / 112卷 / 16期

基金：

中国国家自然科学基金;

关键词：

Thermochromic material; Grating; Absorptance; Fabry-Perot resonance; METAL-INSULATOR-TRANSITION; OPTICAL-PROPERTIES; PHOTONIC BANDGAP; ABSORPTION; SURFACES; PHASE;

D O I：

10.1016/j.jqsrt.2011.07.012

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Combination of thermochromism of perovskite-type materials and gratings can result in some interesting variations of the spectral properties of structured surfaces. This paper aims at investigating thermal absorptive/radiative characteristics of structured thermochromic material La(0.825)Sr(0.175)MnO(3) (LSMO) with metallic and/or dielectric gratings. Numerical computation is conducted to obtain the distribution of the spectral absorptance of such structured surfaces with different structural parameters. The directional and temperature dependence of absorptance are also analyzed. The results reveal that compared with bulk LSMO material, the structured surface of LSMO achieves an improved thermochromic performance and much thinner layer of a structured LSMO film by combining the film with one-dimensional Al and SiO(2) gratings. Therefore, the other advantage of such structured surface is that the reduction of material consumption and weight is achieved due to the smaller LSMO layer thickness, which may be vital for thermal management of space vehicles. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2592 / 2599

页数：8

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