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V. BARNA1,* , E. S. BARNA1
Liquid crystalline phases are typical examples of soft complex materials that exhibit interesting physical and chemical properties and that allow investigating an abundance of different physical phenomena. In this paper, we present experimental results that may contribute to better understanding the physics of confined states for nematic liquid crystalline materials. By using InfraRed Syncrotron Radiation (IRSR) and spectroscopic analyzing the FTIR spectra, we obtained information about the orientation for the nematic liquid crystal (NLC) molecules confined in pre-designed micrometric cavities, that were created on the surface of a polymeric film. By applying an electric field, the NLC molecules inside the micro structures and in the boundary areas were reoriented. The experimental results have been also compared with Monte Carlo simulations and confirm that micro and nano scale cavities have a significant influence on liquid crystals molecular orientation..
InfraRed syncrotron radiation, Nematic liquid crystal, Electrohydrodynamic technique, Polymeric micro cavities.
V. BARNA, E. S. BARNA, Synchrotron infrared microspectroscopy of nematic liquid crystals in polymeric micro cavities, Optoelectronics and Advanced Materials - Rapid Communications, 5, 10, October 2011, pp.1046-1049 (2011).
Submitted at: Oct. 4, 2011
Accepted at: Oct. 20, 2011
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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