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Proceedings Paper

Bandwidth- and angle-selective holographic films for solar energy applications
Author(s): Christo G. Stojanoff; Jochen Schulat; Michael Eich
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Paper Abstract

The objective of this research program is the development of the technology for the industrial fabrication of large format holographic optical elements (HOEs) with predetermined spectral characteristics and angular selectivity. HOEs of this type are used in a variety of technical applications, such as: holographic concentrators for photo-voltaic energy conversion and solar photo- chemistry or as integrated holographic stacks compromising several holograms operating in different ranges of the solar spectrum for daylighting, glazing and shading in buildings. The latter are required for the effective control of the transmission of solar radiation through the windows or the glass curtain wall envelopes of buildings. The HOEs (reflective or transmissive) are recorded in dichromated gelatin layers deposited on glass or plastic substrates. This material and the corresponding thermochemical development process facilitate the achievement of bandwidths, spectral ranges and angular selectivity that match accurately the design spectral and geometrical properties of a particular application.

Paper Details

Date Published: 11 October 1999
PDF: 12 pages
Proc. SPIE 3789, Solar Optical Materials XVI, (11 October 1999); doi: 10.1117/12.367569
Show Author Affiliations
Christo G. Stojanoff, Technical Univ. of Aachen (Germany)
Jochen Schulat, Technical Univ. of Aachen (Germany)
Michael Eich, Technical Univ. of Aachen (Germany)


Published in SPIE Proceedings Vol. 3789:
Solar Optical Materials XVI
Carl M. Lampert; Claes-Goeran Granqvist, Editor(s)

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