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ITO的热辐射性质与等离子波长关系的实验研究

陈颉1; 葛新石1; 胡行方2   

  1. 1. 中国科学技术大学热科学与能源工程系, 合肥 230026; 2. 中国科学院上海硅酸盐研究所, 上海 200050
  • 收稿日期:1999-05-06 修回日期:1999-06-08 出版日期:2000-04-20 网络出版日期:2000-04-20

Experimental Study on the Relation between the Thermal Radiative Properties and Plasma Wavelength of ITO Films for Heat Mirror Applications

CHEN Jie1; GE Xin-Shi1; HU Xing-Fang 2   

  1. 1. Dept. of Thermal Sci. and Energy Engrg.; Univ. of Sci. and Tech. of China; Hefei 230026; China; 2. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:1999-05-06 Revised:1999-06-08 Published:2000-04-20 Online:2000-04-20

摘要: 热镜膜具有广泛的应用背景;特别是将其沉积在柔性的黑色底衬上,就能获得不同于通常的、必须用发射率很低的金属做衬底的太阳能选择性吸收表面.采用衬底不加温的普通RF溅射技术制备单层ITO热镜膜,并对它们的热辐射性质与等离子波长之间的关系进行了实验研究.研究表明,对于单层ITO热镜膜,同时具有最小的发射率和最小的对太阳辐射的反射率是困难的.但是,等离子波长可以作为预测太阳能热利用领域使用的单层ITO热镜膜热辐射性质的一个判据.

关键词: 热镜膜, 热辐射性质, 太阳能选择性吸收表面

Abstract: There is an increasing interest for the heat mirror films, especially, deposited on rigid or flexible black substrates used as a spectral
selective absorbing coating which differs from the common selective absorber needing a metal substrate with low emissivity. The single layer
indium tin oxides heat mirror films (HMF) were deposited onto unheated glass and rigid or flexible plastic substrates by conventional RF sputtering
technique. The relation between the thermal radiative properties and the plasma wavelength of indium tin oxides heat mirror films were obtained
based on experimental studies. The results show that it is impossible to get ITO HMF simultaneously with maximum reflectance in thermal long
wavelength region and minimum reflectance in the solar spectral region. However, the plasma wavelength can be take as a criterion to predict the
thermal radiative properties of ITO HMF, approximately.

Key words: thermal radiative properties, heat mirror films, solar selective absorber

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