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Proceedings Paper

Thermal and chemical metallic-dielectric transitions of TiNxOy-Cu absorber tandems
Author(s): H. Schellinger; Michel P. Lazarov; H. Klank; R. Sizmann
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Paper Abstract

Reliability and structural properties of selective TiNxOy-Cu tandem absorbers for solar applications at high temperatures were investigated. A tempering process which improves thermal emittance of the coatings was observed. Degradation is monitored by directional total thermal emittance. Four steps of degradation have been separated and confirmed by XRD, EDAX, REM and optical spectroscopy. Coatings show crystalline phases and transitions to amorphous due to degradation and tempering. They are susceptible to oxidation and to reactions with the substrate.

Paper Details

Date Published: 22 October 1993
PDF: 11 pages
Proc. SPIE 2017, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII, (22 October 1993); doi: 10.1117/12.161977
Show Author Affiliations
H. Schellinger, Ludwig-Maximilians-Univ. Muenchen (Germany)
Michel P. Lazarov, Ludwig-Maximilians-Univ. Muenchen (Germany)
H. Klank, Ludwig-Maximilians-Univ. Muenchen (New Zealand)
R. Sizmann, Ludwig-Maximilians-Univ. Muenchen (Germany)


Published in SPIE Proceedings Vol. 2017:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XII
Carl M. Lampert, Editor(s)

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