TITLE

Nanoconfined ionic liquids under electric fields

AUTHOR(S)
Guoxin Xie; Jianbin Luo; Dan Guo; Shuhai Liu
PUB. DATE
January 2010
SOURCE
Applied Physics Letters;1/25/2010, Vol. 96 Issue 4, p043112
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The effect of external electric fields (EEFs) on ionic liquid films confined within a nanogap has been investigated by measuring the film thickness with the thin film interferometry and calculating the effective viscosity. Experimental results indicated that the film thickness of ionic liquids could be increased obviously by the application of EEFs with strengths weaker than the electric interactions between cationic head groups and anions. The effect of EEFs on the confined ionic liquid film with a shorter alkyl side chain is more noticeable. It is thought that the charged anions and headgroups of the cations are structured near electrified walls to form ordered layers and short alkyl side chains at the interfaces are aligned along the EEF direction due to induced dipoles.
ACCESSION #
47807460

 

Related Articles

  • Dielectric properties of Ba0.6Sr0.4TiO3 thin films deposited by mist plasma evaporation using aqueous solution precursor. Hui Huang; Peng Shi; Minqiang Wang; Xi Yao; Tan, O. K. // Journal of Applied Physics;6/1/2006, Vol. 99 Issue 11, p114105 

    Mist plasma evaporation (MPE) technique has been developed to deposit Ba0.6Sr0.4TiO3 (BST) thin films on SiO2/Si and Pt/Ti/SiO2/Si substrates at atmospheric pressure using metal nitrate aqueous solution as precursor. MPE is characterized by the injection of liquid reactants into thermal plasma...

  • Theory of the non-planar surface phase in tilted smectic films under electric field. Mettout, B.; Vasseur, H. // European Physical Journal E -- Soft Matter;Sep2009, Vol. 30 Issue 1, p1 

    We present a phenomenological theory of the non-planar tilted surface phase recently observed in freely suspended smectic films. We show that the three phases �Synclinic, Anticlinic, and non-planar (Axial)� stable in non-chiral systems, merge into a single phase in chiral systems. We...

  • Temperature-dependent leakage current characteristics of Pr and Mn cosubstituted BiFeO3 thin films. Zheng Wen; Xuan Shen; Jingxian Wu; Di Wu; Aidong Li; Bin Yang; Zhu Wang; Hengzhi Chen; Junling Wang // Applied Physics Letters;5/17/2010, Vol. 96 Issue 20, p202904 

    Leakage current characteristics of (Bi0.86Pr0.14)(Fe0.95Mn0.05)O3 (BPFMO) thin films are studied at various temperatures from 293 down to 93 K. Space charge limited current and Poole–Frenkel (PF) emission are found to be the dominant mechanism in the low and the high electric fields,...

  • Resistive switching properties of high crystallinity and low-resistance Pr0.7Ca0.3MnO3 thin film with point-contacted Ag electrodes. Fujimoto, Masayuki; Koyama, Hiroshi; Nishi, Yuji; Suzuki, Toshimasa // Applied Physics Letters;11/26/2007, Vol. 91 Issue 22, p223504 

    A high-crystallinity, low-resistance Pr0.7Ca0.3MnO3(PCMO) thin film deposited by sputtering at 600 °C showed no resistive switching with a Pt/Pr0.7Ca0.3MnO3/Pt structure but a remarkable bipolar resistive switching with a Ag paste/Pr0.7Ca0.3MnO3/Pt structure. Observed retention fatigue of the...

  • Electric field stabilization for temperature driven variation of permittivity in ferroelectric devices. Prudan, A. M.; Kozyrev, A. B.; Osadchy, V. N.; Kosmin, D. M.; Kaydanova, T.; Ginley, D. // Applied Physics Letters;11/21/2005, Vol. 87 Issue 21, p212909 

    The Ginzburg–Devonshire phenomenological approach is used to define the correlation between temperature and electric field magnitudes required to keep permanent values of permittivity of ferroelectrics in rather broad range of operating temperatures. The existence of a crossover of the...

  • Retention characteristics in Bi3.25La0.75Ti3O12 thin films prepared by the polymeric precursor method. Simões, A. Z.; Ramirez, M. A.; Perruci, N. A.; Riccardi, C. S.; Longo, E.; Varela, J. A. // Applied Physics Letters;3/14/2005, Vol. 86 Issue 11, p112909 

    Ferroelectric Bi3.25La0.75Ti3O12 (BLT) thin films were deposited on Pt/Ti/SiO2/Si substrates by the polymeric precursor method. The films present c-axis preferred orientation after annealing at 700 °C for 2 h in conventional furnace. All the capacitors showed good polarization fatigue...

  • Unipolar resistive switching effect in YMn1-δO3 thin films. Yan, Z. B.; Li, S. Z.; Wang, K. F.; Liu, J.-M. // Applied Physics Letters;1/4/2010, Vol. 96 Issue 1, p012103 

    Steady unipolar resistive switching of Pt/YMn1-δO3/Pt MIM structure is investigated. High resistance ratio (>104) of high resistance state (HRS) over low resistance state (LRS) and long retention (>105 s) are achieved. It is suggested that the Joule heating and Poole–Frenkel effect...

  • Imaging the dissociation process of O2 background gas during pulsed laser ablation of LiNbO3. Epurescu, G.; Siegel, J.; Gonzalo, J.; Gordillo-Vázquez, F. J.; Afonso, C. N. // Applied Physics Letters;11/21/2005, Vol. 87 Issue 21, p211501 

    The dynamics and the reactivity of the plasma produced during pulsed laser ablation of LiNbO3 have been investigated. Optical emission spectroscopy combined with time-gated imaging with high spatial resolution is applied to the study of the factors that influence the plasma expansion process,...

  • Large photo-induced voltage in a ferroelectric thin film with in-plane polarization. Kui Yao; Bee Keen Gan; Meima Chen; Shannigrahi, Santiranjan // Applied Physics Letters;11/21/2005, Vol. 87 Issue 21, p212906 

    A large photoinduced voltage of 7 V was obtained with an in-plane poled ferroelectric thin film having a composition of WO3 modified Pb0.97La0.03(Zr0.52Ti0.48)O3 (PLWZT), under ultraviolet (UV) illumination for about 80 s. By poling the ferroelectric film along the surface plane through pairs of...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics