Infrared thermochromic behaviour of a composite Sm0.65Ca0.35MnO3-poly(styrene-co-acrylonitrile) film

被引：5

作者：

Ammar, M. R. ^{[1
,2
]}

Napierala, C. ^{[1
]}

Laffez, P. ^{[1
]}

机构：

[1] Univ Tours, Lab Electrodynam Mat Avances, CEA, CNRS,IUT Blois,UMR 6115, F-41029 Blois, France

[2] Ecole Normale Super, Geol Lab, CNRS, UMR 8538, F-75230 Paris 05, France

来源：

SMART MATERIALS AND STRUCTURES | 2009年 / 18卷 / 05期

关键词：

D O I：

10.1088/0964-1726/18/5/055002

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Samarium calcium perovskite manganite Sm0.65Ca0.35MnO3 was dispersed homogeneously in a solution of poly(styrene-co-acrylonitrile). A thin film was deposited on (100) oriented silicon substrate by spin-coating and the optical thermochromic behaviour in the infrared range was studied. In the wavelength range 8-14 mu m, the optical transmittance of the thermochromic composite coating exhibited a large variation between 173 and 343 K due to a semiconductor-metal first-order transition at T-c = 250 K. The thermochromic behaviour of the composite coatings was optimized. The contrast in the transmittance first increased with pigment content, then reached a maximum value.

引用

页数：5

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