Influence of a bleaching post-exposure treatment in the performance of H-PDLC devices with high electric conductivity

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Title: Influence of a bleaching post-exposure treatment in the performance of H-PDLC devices with high electric conductivity
Authors: Ortuño, Manuel | Márquez, Andrés | Gallego, Sergi | Fernandez, Roberto | Navarro-Fuster, Víctor | Beléndez, Augusto | Pascual, Inmaculada
Research Group/s: Holografía y Procesado Óptico
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías
Keywords: Holographic polymer dispersed liquid crystals | Holography | Holographic recording materials | Photopolymer formulation | Electro-optical polymer devices
Knowledge Area: Óptica | Física Aplicada
Date Created: Apr-2014
Issue Date: 22-Aug-2014
Publisher: SPIE, The International Society for Optics and Photonics
Citation: Manuel Ortuño ; Andrés Márquez ; Sergi Gallego ; Roberto Fernandez ; Víctor Navarro-Fuster ; Augusto Beléndez ; Inmaculada Pascual. Influence of a bleaching post-exposure treatment in the performance of H-PDLC devices with high electric conductivity. Proc. SPIE 9286, Second International Conference on Applications of Optics and Photonics, 92865C (August 22, 2014); doi:10.1117/12.2063540
Abstract: Holographic polymer dispersed liquid crystals (H-PDLC) are made by holographic recording in a photo-polymerization induced phase separation process in which the liquid crystal molecules diffuse to dark zones in the diffraction grating. The devices with H-PDLC materials develop a dynamic behavior that may be modified by means of an electric field. We study a photopolymer formulation with high diffraction efficiency but with the problem of high electric conductivity. We use a bleaching post-exposure treatment to obtain devices with a better electro-optical performance.
Sponsor: The work was supported by the “Ministerio de Economía y Competitividad” of Spain under projects FIS2011-29803- C02-01 and FIS2011-29803-C02-02 and by the “Generalitat Valenciana” of Spain under projects PROMETEO/2011/021 and ISIC/2012/013.
ISBN: 978-1-62841-361-8
ISSN: 0277-786X
DOI: 10.1117/12.2063540
Language: eng
Type: info:eu-repo/semantics/article
Rights: Copyright 2014 Society of Photo-Optical Instrumentation Engineers. This paper was published in Proceedings of SPIE, vol. 9286, and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Peer Review: si
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