Surface relief gratings from electrostatically layered azo dye films

Surface relief gratings from electrostatically layered azo dye films

Surface relief gratings (SRGs) were fabricated on composite films assembled by alternate electrostatic deposition of a polyelectrolyte, poly(dimethyldiallylammonium chloride), and an organic azo dye, congo red. The modulation of SRGs was found to increase with the thickness of the matrix films. Sign...

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Veröffentlicht in:Applied physics letters 2000-05, Vol.76 (22), p.3233-3235
Hauptverfasser: He, Jin-An, Bian, Shaoping, Li, Lian, Kumar, Jayant, Tripathy, Sukant K., Samuelson, Lynne A.
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container_end_page 3235
container_issue 22
container_start_page 3233
container_title Applied physics letters
container_volume 76
creator He, Jin-An
Bian, Shaoping
Li, Lian
Kumar, Jayant
Tripathy, Sukant K.
Samuelson, Lynne A.
description Surface relief gratings (SRGs) were fabricated on composite films assembled by alternate electrostatic deposition of a polyelectrolyte, poly(dimethyldiallylammonium chloride), and an organic azo dye, congo red. The modulation of SRGs was found to increase with the thickness of the matrix films. Significant photochemical bleaching of the azo dye in the polymeric microenvironment as well as gradient-force-induced migration of the small azo dye contributes to the formation of the SRG structure. This finding demonstrates a facile method to fabricate SRGs for optical and information storage applications using commercially available azo dyes and polyelectrolytes.
doi_str_mv 10.1063/1.126591
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title Surface relief gratings from electrostatically layered azo dye films
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