A solution-based approach to composite dielectric films of surface functionalized CaCu3Ti4O12 and P(VDF-HFP)

2014 ◽  
Vol 2 (7) ◽  
pp. 2266-2274 ◽  
Author(s):  
Claudia Ehrhardt ◽  
Christian Fettkenhauer ◽  
Jens Glenneberg ◽  
Wolfram Münchgesang ◽  
Hartmut S. Leipner ◽  
...  
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Relative Permittivity ◽  
Dielectric Films ◽  
Composite Thin Films ◽  
Fivefold Increase

Composite thin films of surface functionalized CaCu3Ti4O12 prepared by spin-coating show a fivefold increase of the relative permittivity compared to the pure P(VDF-HFP) polymer.

scholarly journals Study of Ruthenium Oxide, Manganese Oxide and Composite (Ru:Mn)O2 thin film Electrodes Assembled by Layer by Layer Spin Coating Method

2016 ◽  
Vol 13 (1) ◽  
pp. 43-49 ◽  
Author(s):  
P. S. Joshi ◽  
D. S. Sutrave
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Manganese Oxide ◽  
Spin Coating ◽  
Composite Films ◽  
Ruthenium Oxide ◽  
Layer By Layer ◽  
Composite Thin Films ◽  
Spin Coating Method ◽  
Coating Method

Ruthenium oxide, Manganese oxide and (Ru:Mn)O2 composite thin films have been prepared by 0.02M Ruthenium chloride and Manganese acetate solutions respectively on stainless steel substrates by sol-gel spin coating method. Layer by layer deposition of RuO2 and MnO2 was done for composite films. RuO2: MnO2 composite thin films have been demonstrated to be an excellent material for Supercapacitor application when evaluated with RuO2 and MnO2 thin film electrodes with respect to XRD, SEM, CV, CP and EIS studies. As a result, high specific capacitance of 515 F/g at 10 mV/s with excellent stability and long cycle life was obtained, where specific power and energy were as high as 15.38 Wh/kg and 4.06 KW/kg respectively with loading weight of 0.13 mg/cm2 .Composite films showed changes in structural and morphological features which was admiring for supercapacitor applications. The electrochemical impedance measurement was carried out in 0.1M KOH in the frequency range 10 to 105 Hz. From the analysis it can be concluded that mixed oxide composites have superior capacitive performance to single transition metal oxides as electrodes.

scholarly journals Synthesis of PVDF/SBT composite thin films by spin coating technology and their ferroelectric properties

2016 ◽  
Vol 34 (3) ◽  
pp. 650-654 ◽  
Author(s):  
Changchun Chen ◽  
Pengfei Hu ◽  
Jun Yang ◽  
Zixuan Liu
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Ferroelectric Properties ◽  
Layered Perovskite ◽  
X Ray Diffraction ◽  
Coating Technology ◽  
Composite Thin Films ◽  
Saturated Polarization ◽  
Coating Method ◽  
Ft Ir

AbstractFerroelectric composite thin films of x-SBT/PVDF with different SBT content (weight ratios of SBT to PVDF, x = 0 %, 5 %, 10 %, 15 %, 20 %) were prepared by spin-coating method. The crystal structures of x-SBT/PVDF films were analyzed by X-ray diffraction (XRD) measurements and Fourier transform-infrared spectroscopy (FT-IR), respectively. Experimental results demonstrated that both α, β-phases PVDF and the layered perovskite SBT co-existed in the x-SBT/PVDF samples. With an increase of SBT content in the x-SBT/PVDF thin films, both the dielectric constant and the saturated polarization were also increased, compared with those of pure PVDF thin film. More importantly, when the SBT content in the x-SBT/PVDF thin films was larger than 15 %, the coercive field of x-SBT/PVDF thin films was also decreased.

scholarly journals MgO and ZnO Composite Thin Films Using the Spin Coating Method on Microscope Glasses

2015 ◽  
Vol 06 (01) ◽  
pp. 40-47 ◽  
Author(s):  
Ayşe Kaya Balta ◽  
Özlem Ertek ◽  
Nail Eker ◽  
İbrahim Okur
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Composite Thin Films ◽  
Spin Coating Method ◽  
Coating Method

scholarly journals Structural characterization and dielectric properties of BaTiO3 thin films obtained by spin coating

2014 ◽  
Vol 8 (4) ◽  
pp. 219-224 ◽  
Author(s):  
Branimir Bajac ◽  
Jelena Vukmirovic ◽  
Djordjije Tripkovic ◽  
Elvira Djurdjic ◽  
Jovana Stanojev ◽  
...  
Keyword(s):  
Thin Films ◽  
Dielectric Properties ◽  
Spin Coating ◽  
Relative Permittivity ◽  
Sintering Temperature ◽  
X Ray Diffraction ◽  
Force Microscopy ◽  
Low Dielectric ◽  
Microelectronic Devices ◽  
Atomic Force

Barium titanate thin films were prepared by spin coating deposition technique of an acetic precursor sol and sintered at 750, 900 and 1050?C. Phase composition of the obtained thin films was characterized by X-ray diffraction and Raman spectroscopy. Their morphology was analysed by scanning electron microscopy and atomic force microscopy. Dielectric properties of thin films sintered at 750 and 900 ?C were characterized by LCD device, where the influence of sintering temperature on dielectric permittivity and loss tangent was inspected. It was concluded that higher sintering temperature increases grain size and amount of tetragonal phase, hence higher relative permittivity was recorded. The almost constant relative permittivity in the measured frequency (800Hz-0.5MHz) and temperature (25-200?C) ranges as well as low dielectric loss are very important for the application of BaTiO3 films in microelectronic devices.

Nanocomposites of metallophthalocyanines and conjugated Polymers

1997 ◽  
Vol 488 ◽  
Author(s):  
Shujian Yi ◽  
Samson A. Jenekhe
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Organic Solvents ◽  
Lewis Acid ◽  
Spin Coating ◽  
Conjugated Polymer ◽  
Optical Transparency ◽  
Composite Thin Films

AbstractNanocomposites of phenoxy-substituted vanadyl phthalocyanine with a t-conjugated polymer, poly(benzimidazobenzophenanthroline ladder), have been prepared from their Lewis acid complexes in organic solvents. The resulting composite thin films obtained by spin-coating have excellent optical transparency and interesting composition-dependent morphology and photoelectronic properties. Enhanced photoconductivity, compared to the components, was observed in some composites with discrete nanoscale metallophthalocyanine aggregates.

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