Polarized infrared spectroscopy and two-dimensional correlation spectroscopy study of molecular structure of ferroelectric liquid crystals with a naphthalene ring

Nagasaki, Y.; Yoshihara, T.; Ozaki, Y.
March 2000
AIP Conference Proceedings;2000, Vol. 503 Issue 1, p257
Academic Journal
We have investigated molecular orientation and structure of the ferroelectric liquid crystal (FLC) with a naphthalene ring in the chiral smectic-C (SmC*) phase by using polarized infrared spectroscopy. Two-dimensional (2D) correlation spectroscopy has been applied to analyze the polarization angle dependence of band intensity changes. The 2D correlation analysis has revealed that not only two carbonyl groups but also benzene and naphthalene rings undergo hindered rotation about the molecular long axis. © 2000 American Institute of Physics.


Related Articles

  • Method based on polarized infrared spectroscopy for the determination of the spatial orientation of transition dipole moments of a ferroelectric liquid crystal. Zhao, Jinggang; Ozaki, Yukihiro // Applied Physics Letters;7/14/2003, Vol. 83 Issue 2, p389 

    A method to determine the spatial orientation of the transition dipole moments for ferroelectric liquid-crystal (FLC) molecules in the surface-stabilized FLC states by use of both conventional and oblique polarized infrared spectroscopy is proposed. It is found that the core moiety is tilted by...

  • Orientation of Discotic and Ferroelectric Liquid Crystals in a Macroporous Silicon Matrix. Perova, T. S.; Astrova, E. V.; Tsvetkov, S. E.; Tkachenko, A. G.; Vij, J. K.; Kumar, S. // Physics of the Solid State;Jun2002, Vol. 44 Issue 6, p1196 

    Macroporous silicon with deep regular channels 3�4.5�m in diameter was infiltrated with discotic and ferroelectric liquid crystals (LCs) at the temperature of the isotropic phase, and then, the system was slowly cooled to room temperature, with the liquid crystalline mesophase formed....

  • Treatment with orthophosphoric acid enhances the thermal stability of the piezoelectricity in low-density polyethylene ferroelectrets. Rychkov, Dmitry; Alberto Pisani Altafim, Ruy; Qiu, Xunlin; Gerhard, Reimund // Journal of Applied Physics;Jun2012, Vol. 111 Issue 12, p124105 

    Ferroelectrets have been fabricated from low-density polyethylene (LDPE) films by means of a template-based lamination. The temperature dependence of the piezoelectric d33 coefficient has been investigated. It was found that low-density polyethylene ferroelectrets have rather low thermal...

  • Infrared and ESR spectroscopy of KTaO : Er. Skvortsov, A.; Trepakov, V.; Nuzhnyi, D.; Laguta, V.; Jastrabik, L. // Physics of the Solid State;May2012, Vol. 54 Issue 5, p972 

    Infrared reflection and ESR spectra of KTaO : Er single crystals have been investigated. The frequency of the lowest optical phonon mode TO has been found to increase as compared to undoped KTaO crystals, which indicates the suppression of the ferroelectric instability of the system. The ESR...

  • Polarization-specific adsorption of organic molecules on ferroelectric LiNbO3 surfaces. Zhang, Zhengzheng; Sharma, P.; Borca, C. N.; Dowben, P. A.; Gruverman, A. // Applied Physics Letters;12/13/2010, Vol. 97 Issue 24, p243702 

    Polarization effect on adsorption of d-cysteine molecules on ferroelectric LiNbO3 surfaces is studied by a combination of infrared spectramicroscopy and spatially resolved x-ray absorption near edge spectroscopy. It is shown that even in the absence of any electronic excitation (optical or...

  • Optical interband transitions in relaxor-based ferroelectric 0.93Pb(Zn1/3Nb2/3)O3–0.07PbTiO3 single crystal. Enwei Sun; Rui Zhang; Zhu Wang; Dapeng Xu; Liang Li; Wenwu Cao // Journal of Applied Physics;Jun2010, Vol. 107 Issue 11, p113532 

    The optical transmission spectrum of [111]c poled relaxor-based ferroelectric single crystal 0.93Pb(Zn1/3Nb2/3)O3–0.07PbTiO3 (PZN–0.07PT) was measured in the range of ultraviolet to near infrared. The optical absorption edge has been determined and the wavelength dependence of the...

  • FTIR studies on polymorphic control of PVDF ultrathin films by heat-controlled spin coater. Dhevi, D.; Prabu, A.; Kim, Kap // Journal of Materials Science;Apr2016, Vol. 51 Issue 7, p3619 

    The performance of organic polymer-based memory devices based on polyvinylidene fluoride (PVDF) ultrathin films depends on the extent of its ferroelectric crystalline phase content. In the present study, the changes in polymorphs of PVDF ultrathin films prepared by using heat-controlled spin...

  • Structural and dielectric characterization of Sm2Bi2Ti3O12 ferroelectric ceramics. Alvarez-Fregoso, Octavio // Journal of Applied Physics;2/1/1997, Vol. 81 Issue 3, p1387 

    Reports on the structural and dielectric characterization of Sm2Bi2T3O12 ferroelectric ceramics. Impedance response; Activation energies; Builk dieletric constant; Ferroelectric Curie temperature.

  • Application of the second harmonic generation microscope to nondestructive observation of... Kurimura, Sunao; Uesu, Yoshiaki // Journal of Applied Physics;1/1/1997, Vol. 81 Issue 1, p369 

    Utilizes the second harmonic generation microscope in observing ferroelectric crystals. Exploitation of phase reversal of the second harmonic wave accompanying inversion of spontaneous polarization; Demonstration of the validity of the technique; Characterization of poled structure in...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics