中国物理B ›› 2007, Vol. 16 ›› Issue (6): 1704-1709.doi: 10.1088/1009-1963/16/6/037

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Thin film design for advanced thermochromic smart radiator devices

王志民1, 马亚莉2, 张福甲3, 冯煜东4   

  1. (1)National Key Laboratory of Surface Engineering, Lanzhou Institute of Physics, Lanzhou 730000, China; (2)National Key Laboratory of Vacuum and Cryogenics Technology, Lanzhou Institute of Physics, Lanzhou 730000, China; (3)Physics Department, Lanzhou University, Lanzhou 730000, China; (4)Physics Department, Lanzhou University, Lanzhou 730000, China;National Key Laboratory of Surface Engineering, Lanzhou Institute of Physics, Lanzhou 730000, China
  • 收稿日期:2006-11-11 修回日期:2007-01-07 出版日期:2007-06-20 发布日期:2007-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60676033).

Thin film design for advanced thermochromic smart radiator devices

Feng Yu-Dong(冯煜东)a)b), Wang Zhi-Min(王志民)b), Ma Ya-Li(马亚莉)c), and Zhang Fu-Jia(张福甲)a)†   

  1. a Physics Department, Lanzhou University, Lanzhou 730000, China; b National Key Laboratory of Surface Engineering, Lanzhou Institute of Physics, Lanzhou 730000, China; c National Key Laboratory of Surface Engineering, Lanzhou Institute of Physics, Lanzhou 730000, China
  • Received:2006-11-11 Revised:2007-01-07 Online:2007-06-20 Published:2007-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60676033).

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摘要： This paper describes the research on the materials and design methods for advanced smart radiator devices (SRDs) on large-area flexible substrates utilized on spacecraft. The functional material is thermochromic vanadium dioxide. The coating design of SRD is similar to the design of broadband filter coatings in a mid-infrared region. The multilayer coatings have complex structures. Coating materials must be highly transparent in a required spectrum region and also mechanically robust enough to endure the influence from the rigorous environments of outer space. The number of layers must be very small, suitable for the deposition on large-area flexible substrates. All the coatings are designed initially based on optical calculation and practical experience, and then optimized by the TFCALC software. Several designs are described and compared with each other. The results show that the emittance variability of the designed SRDs is great than 400\%, more advanced than the reported ones.

关键词: optical design, thermochromic, vanadium dioxide, smart radiator device

Abstract: This paper describes the research on the materials and design methods for advanced smart radiator devices (SRDs) on large-area flexible substrates utilized on spacecraft. The functional material is thermochromic vanadium dioxide. The coating design of SRD is similar to the design of broadband filter coatings in a mid-infrared region. The multilayer coatings have complex structures. Coating materials must be highly transparent in a required spectrum region and also mechanically robust enough to endure the influence from the rigorous environments of outer space. The number of layers must be very small, suitable for the deposition on large-area flexible substrates. All the coatings are designed initially based on optical calculation and practical experience, and then optimized by the TFCALC software. Several designs are described and compared with each other. The results show that the emittance variability of the designed SRDs is great than 400%, more advanced than the reported ones.

Key words: optical design, thermochromic, vanadium dioxide, smart radiator device

中图分类号:  (Spaceborne and space research instruments, apparatus, and components (satellites, space vehicles, etc.))

  • 07.87.+v
42.15.Eq (Optical system design) 42.79.Ci (Filters, zone plates, and polarizers) 42.79.Wc (Optical coatings)