Solar Selective Properties of Electrolytically Formed Thin Layers on Aluminum

A novel electrochemical process for the formation of solar selective absorber layers on aluminum is presented. The growth of an alumina layer and the incorporation of metal ions into the layer is done by a one-step procedure using only one electrolytic bath and application of a voltage pulse techniq...

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Veröffentlicht in:	Journal of solar energy engineering 2000-05, Vol.122 (2), p.101-105
Hauptverfasser:	Mo¨ller, T, Schwarz, Th, Ho¨nicke, D
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Energy Exact sciences and technology Natural energy Solar collectors Solar energy Solar thermal conversion
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A novel electrochemical process for the formation of solar selective absorber layers on aluminum is presented. The growth of an alumina layer and the incorporation of metal ions into the layer is done by a one-step procedure using only one electrolytic bath and application of a voltage pulse technique. The influence of selected electrical parameters on the solar selective properties is described and the enhanced stability of an absorber layer, attained by a sol-gel-posttreatment, is discussed. [S0199-6231(00)00602-X]
ISSN:	0199-6231 1528-8986
DOI:	10.1115/1.1287500