Colour control and selectivity in TiAlN solar-thermal absorbers

Shuxi Zhao; Dechun Zhu; Carl-G. Ribbing

doi:10.1117/12.896591

4 October 2011 Colour control and selectivity in TiAlN solar-thermal absorbers

Shuxi Zhao, Dechun Zhu, Carl-G. Ribbing

Proceedings Volume 8168, Advances in Optical Thin Films IV; 81680G (2011) https://doi.org/10.1117/12.896591
Event: SPIE Optical Systems Design, 2011, Marseille, France

Abstract

Optical constants for simulations were obtained by R- and T-measurements on TiAlN thin films deposited on Corning 7059 glass. The model parameterized free carrier effects and an inter-band excitation. The calculations demonstrated that the colour effects are due to interference and inter-band absorption around 500 nm in a single layer coating. The peak shifts with the thickness of the thin film which gives a simple way to obtain different colours. Solar absorptance of 86 % can be reached already for a single TiAlN-film on an Al substrate.

Citation Download Citation

Shuxi Zhao, Dechun Zhu, and Carl-G. Ribbing "Colour control and selectivity in TiAlN solar-thermal absorbers", Proc. SPIE 8168, Advances in Optical Thin Films IV, 81680G (4 October 2011); https://doi.org/10.1117/12.896591

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