Preparation of polymer-dispersed liquid crystal doped with indium tin oxide nanoparticles |
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| Authors: | Yi Zhang Jie Yang Le Zhou Yanzi Gao Mingtan Hai |
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| Institution: | 1. Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, People’s Republic of China;2. Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, People’s Republic of China |
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| Abstract: | To study polymer-dispersed liquid crystal (PDLC) films doped with indium tin oxide (ITO) nanoparticles (NPs), samples were prepared by ultraviolet-initiated polymerisation based on the thiol–acrylate system. Owing to the interaction between PDLC system and ITO NPs, the content and the size of ITO NPs are the main determinants to the microstructure which plays an essential role on the electro-optical and anti-infrared properties of the PDLC films. In the polymer matrix, a novel microstructure consisting of a dense surface, micron-sized meshes and submicron meshes is found to benefit the better performances of the low driven voltage (20.7 V), the relatively high contrast ratio (8.3) and the lowest transmittance(500–2500 nm) on average at about 3.55% with maximum of merely 7.6%. Thus, it lays a solid foundation for the further investigations on the microstructure and the performance of the PDLC films. Meanwhile, it is proved that the PDLC film, improved performance through doping ITO NPs, is promising to be a superior choice in the field of energy-saving. |
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| Keywords: | Polymer-dispersedliquid crystal ITO NPs thiol–acrylate electro-opticalproperties anti-infraredradiation |
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