Electrical conductivity relaxation in PVOH–LiClO4–Al2O3

Castro, W. A.; Zapata, V.H.; Vargas, R.A.; Mellander, Bengt-Erik

doi:10.1016/j.electacta.2007.05.066

Cited by 14 publications

(6 citation statements)

References 16 publications

(36 reference statements)

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“…This means that there is a small increment in conductivity for the ceramic fillers of the samples. Hence, the interaction of the ceramic fillers with the polymer matrix is probably weak [31]. It may act as a dissociation promoter in this polymer system, but does not change any intrinsic mechanism for the ionic conduction.…”

Section: Conductivity Studiesmentioning

confidence: 99%

Structure, electrical and optical properties of (PVA/LiAsF₆) polymer composite electrolyte films

Mohan

Qiu

Gao

et al. 2009

Polymer Engineering & Sci

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In this work, Li þ ion conducting polymer composite electrolyte films (PECs) were prepared based on poly (vinyl alcohol) (PVA), lithium hexafluoro arsenate (LiAsF 6 ), and ceramic filler TiO 2 using solution cast technique. The XRD and FTIR spectra were used to determine the complexation of the PVA polymer with LiAsF 6 salt. The ionic conductivities of the (PVA þ LiAsF 6 ) and (PVA þ LiAsF 6 þ TiO 2 ) films have been determined by the A.C. impedance measurements in the temperature range 320-440 K. The maximum conductivity was found to be 5.10 3 10 24 S cm 21 for PVA:LiAsF 6 (75:25) þ 5 wt% TiO 2 polymer composite film at 320 K. The calculation of Li þ ion transference number was carried out by the combination of A.C. impedance and D.C. polarization methods and is found to be 0.52 for PVA:LiAsF 6 (75:25) þ 5 wt% TiO 2 film. Optical properties such as direct energy gap, indirect energy gap, and optical absorption edge values were investigated in pure PVA and salt complexed PVA films from their optical absorption spectra in the wavelength range of 200-600 nm. The absorption edge was found at 5.76 eV for undoped film, while it is observed at 4.87 and 4.70 eV for 20 and 25 wt% LiAsF 6 doped films, respectively. The direct band gaps for these undoped and salt doped PVA films were found to be 5.40, 5.12, and 4.87 eV, respectively, whereas the indirect band gaps were determined as 4. 75, 4.45, and 4.30 eV. POLYM. ENG. SCI.,

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Section: Conductivity Studiesmentioning

confidence: 99%

Structure, electrical and optical properties of (PVA/LiAsF₆) polymer composite electrolyte films

Mohan

Qiu

Gao

et al. 2009

Polymer Engineering & Sci

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“…The dielectric strength increases with increase in the concentration of ZnO up to 6 wt% and then decreases with increase in the concentration of the filler. As observed from Table , the change in the exponent n is independent of the concentration of the fillers . The values of implies the self‐similar spatial–temporal ensemble in the space‐charge region .…”

Section: Resultsmentioning

confidence: 65%

Conductivity and dielectric permittivity studies of KI‐based nanocomposite (PEO/PMMA/KI/I₂/ZnO nanorods) polymer solid electrolytes

et al. 2018

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In this present study, we have studied the relaxation behaviour and dynamics of charge carriers in poly(ethylene oxide; PEO)/poly(methyl methacrylate; PMMA) blend with potassium based iodide–triiodide redox couple as polymer solid electrolyte dispersed with different concentration of ZnO nanorods as fillers. Various composition of potassium iodide (KI)‐based nanocomposite (PEO/PMMA/KI/I2/x wt% ZnO nanorods, x = 0, 2, 4, 6, 8, and 10) polymer solid electrolytes (NCPSEs) films were prepared by solution casting technique. Structural properties of the prepared solid electrolytes are studied by X‐ray diffraction and Fourier transform infrared spectroscopy. Among the prepared NCPSEs, 6 wt% sample of solid electrolyte showed high conductivity of 4.698 × 10−5 S/cm. The relaxation and dynamics of charge carriers are studied by analyzing complex conductivity and dielectric permittivity through power law along with the contribution of electrode polarization and Havriliak–Negami formalism, respectively, for the prepared polymer solid electrolytes to find out their usefulness for dye‐sensitized solar cell applications. © 2018 Society of Plastics Engineers POLYM. COMPOS., 40:2919–2928, 2019. © 2018 Society of Plastics Engineers

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“…In the present scientific trends, the arrival of nanomaterials provided a new lease of life and benefits into the electrochemical devices due to their attractive virtues of viable physico-chemical and mechanical properties [4,5]. It is generally established that the addition of ceramic fillers boosts the mobility of polymer hosts and their interfacial properties in contact with electrodes [6,7]. This increase in mobility is explained by the enhanced degree of amorphocity of the polymer chain.…”

Section: Introductionmentioning

confidence: 97%

Ion dynamics and segmental relaxation of CeO 2 nanoparticles loaded soft - matter like gel polymer electrolyte

Suthanthiraraj

2014

Journal of Non-Crystalline Solids

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Electrical conductivity relaxation in PVOH–LiClO4–Al2O3

Cited by 14 publications

References 16 publications

Structure, electrical and optical properties of (PVA/LiAsF₆) polymer composite electrolyte films

Structure, electrical and optical properties of (PVA/LiAsF₆) polymer composite electrolyte films

Conductivity and dielectric permittivity studies of KI‐based nanocomposite (PEO/PMMA/KI/I₂/ZnO nanorods) polymer solid electrolytes

Ion dynamics and segmental relaxation of CeO 2 nanoparticles loaded soft - matter like gel polymer electrolyte

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Electrical conductivity relaxation in PVOH–LiClO4–Al2O3

Cited by 14 publications

References 16 publications

Structure, electrical and optical properties of (PVA/LiAsF6) polymer composite electrolyte films

Structure, electrical and optical properties of (PVA/LiAsF6) polymer composite electrolyte films

Conductivity and dielectric permittivity studies of KI‐based nanocomposite (PEO/PMMA/KI/I2/ZnO nanorods) polymer solid electrolytes

Ion dynamics and segmental relaxation of CeO 2 nanoparticles loaded soft - matter like gel polymer electrolyte

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Structure, electrical and optical properties of (PVA/LiAsF₆) polymer composite electrolyte films

Structure, electrical and optical properties of (PVA/LiAsF₆) polymer composite electrolyte films

Conductivity and dielectric permittivity studies of KI‐based nanocomposite (PEO/PMMA/KI/I₂/ZnO nanorods) polymer solid electrolytes