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Proceedings Paper

Advances in photoconductive and photorefractive cyclometalated complexes development
Author(s): Attilio Golemme; Iolinda Aiello; Davide Dattilo; D. Pucci; Mauro Ghedini; M. Talarico; Roberto Termine
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Paper Abstract

We present results on the photorefractive performance of cyclometalated complexes in which a central metal atom (Pd or Pt) coordinates two different molecular sub-units in a single species. Depending on the details of their structure, these molecules aggregate in crystals, glasses or liquid crystalline phases. The photorefractive properties of the complexes are discussed by treating separately results obtained in different phases. Crystalline compounds can be dissolved in suitable polymers and we show how phase separation in polymeric composites, which is usually detrimental for sample stability, can be controlled and used to increase photorefractive performance parameters by orders of magnitude. In addition, we present a method for estimating the itensity of the space-charge field in chiral smectic phases without using any of the standard models developed for crystalline or amorphous materials.

Paper Details

Date Published: 26 October 2004
PDF: 10 pages
Proc. SPIE 5521, Organic Holographic Materials and Applications II, (26 October 2004); doi: 10.1117/12.557180
Show Author Affiliations
Attilio Golemme, Univ. della Calabria (Italy)
Iolinda Aiello, Univ. della Calabria (Italy)
Davide Dattilo, Univ. della Calabria (Italy)
D. Pucci, Univ. della Calabria (Italy)
Mauro Ghedini, Univ. della Calabria (Italy)
M. Talarico, Univ. della Calabria (Italy)
Roberto Termine, Univ. della Calabria (Italy)

Published in SPIE Proceedings Vol. 5521:
Organic Holographic Materials and Applications II
Klaus Meerholz, Editor(s)

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