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Raman Spectroscopy Study and Density Functional Theory Calculations of the Nematic Liquid Crystal 4-N-pentyl-4′-cyanobiphenyl Under an Electric Field by Jong Kuk Lim; Ohyun Kwon; Dae Seung Kang; Sang-Woo Joo is a Physics and Astronomy article available to read on EtoBox.

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Vibrational spectra of 4-n-pentyl-4 0 -cyanobiphenyl in a liquid crystalline cell have been studied by means of micro-Raman spectroscopy when an electric field was applied up to $10 4 V/cm. To further elucidate the intramolecular changes upon the presence of the electric field, density functional theory calculations have been applied to 5CB molecule under various electric field strengths. The inter-ring C-C bond distance connecting two phenyl rings was found to be most affected along with the variance of the inter-ring torsional angle only by the electric field as high as $5 • 10 7 V/cm.

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Author

Jong Kuk Lim; Ohyun Kwon; Dae Seung Kang; Sang-Woo Joo

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0009-2614)

Published

2006

Language

EN

Field

Physics and Astronomy (Physical Sciences)