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

Manuel Ortuño; Andrés Márquez; Sergi Gallego; Roberto Fernandez; Víctor Navarro-Fuster; Augusto Beléndez; Inmaculada Pascual

doi:10.1117/12.2063540

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22 August 2014 Influence of a bleaching post-exposure treatment in the performance of H-PDLC devices with high electric conductivity

Manuel Ortuño, Andrés Márquez, Sergi Gallego, Roberto Fernandez, Víctor Navarro-Fuster, Augusto Beléndez, Inmaculada Pascual

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Proceedings Volume 9286, Second International Conference on Applications of Optics and Photonics; 92865C (2014) https://doi.org/10.1117/12.2063540
Event: Second International Conference on Applications of Optics and Photonics, 2014, Aveiro, Portugal

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.

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Manuel Ortuño, Andrés Márquez, Sergi Gallego, Roberto Fernandez, Víctor Navarro-Fuster, Augusto Beléndez, and 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 (22 August 2014); https://doi.org/10.1117/12.2063540

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