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Tuning of reflectance transition position of Al-AlN cermet solar selective absorbing coating by simulating

  • Yuping Ning
  • , Wenwen Wang
  • , Ying Sun
  • , Yongxin Wu
  • , Hongliang Man
  • , Cong Wang*
  • , Shuxi Zhao
  • , Eric Tomasella
  • , Angélique Bousquet
  • , Yong Zhang
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The reflectance spectra of the Al/double cermet Al-AlN/AlOxNy solar selective absorbing coating are simulated. Two methods have been found to effectively tune the position of reflectance transition of the Al-AlN cermet solar selective absorbing coating, which is crucial to obtain a low emittance at elevated temperature. The position of reflectance transition is mainly determined by the high metal volume fraction (HMVF) cermet layer. It is effectively tuned to shift to lower wavelength by reducing the metal volume fraction or the thickness of the HMVF layer. This provides easy ways to tune the position of reflectance transition.

Original languageEnglish
Pages (from-to)65-70
Number of pages6
JournalInfrared Physics and Technology
Volume80
DOIs
StatePublished - 1 Jan 2017

Keywords

  • Al-AlN cermet coating
  • Layer thickness
  • Metal volume fraction
  • Reflectance spectrum

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