Direct Inkjet Printing of Dielectric Ceramic/Polymer Composite Thick Films

Mikolajek, M.; Friederich, A.; Köhler, Christian; Rosen, Melanie; Rathjen, Andreas; Krüger, Klaus; Binder, Joachim R.

doi:10.1002/adem.201400451

Cited by 27 publications

(21 citation statements)

References 37 publications

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“…The composite thick film is then printed on the subsequent day. A single layer BST/PMMA thick film results in a more homogeneous topography and less failures compared to double printed films 33,51 . After a further drying period of 30 min on the printing table, the top electrode is printed with two layers to get a consistently layer on the composite.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and Characterization of Fully Inkjet Printed Capacitors Based on Ceramic/Polymer Composite Dielectrics on Flexible Substrates

Mikolajek

Reinheimer

Bohn

et al. 2019

Sci Rep

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The preparation of fully inkjet printed capacitors containing ceramic/polymer composites as the dielectric material is presented. Therefore, ceramic/polymer composite inks were developed, which allow a fast one-step fabrication of the composite thick films. Ba0.6Sr0.4TiO3 (BST) is used as the ceramic component and poly(methyl methacrylate) (PMMA) as the polymer. The use of such composites allows printing on flexible substrates. Furthermore, it results in improved values for the permittivity compared to pure polymers. Three composite inks with varying ratio of BST to PMMA were used for the fabrication of composite thick films consisting of 33, 50 and 66 vol% BST, respectively. All inks lead to homogeneous structures with precise transitions between the different layers in the capacitors. Besides the microstructures of the printed thick films, the dielectric properties were characterized by impedance spectroscopy over a frequency range of 100 Hz to 200 kHz. In addition, the influence of a larger ceramic particle size was investigated, to raise permittivity. The printed capacitors exhibited dielectric constants of 20 up to 55 at 1 kHz. Finally, the experimental results were compared to different theoretical models and their suitability for the prediction of εcomposite was assessed.

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Section: Resultsmentioning

confidence: 99%

Fabrication and Characterization of Fully Inkjet Printed Capacitors Based on Ceramic/Polymer Composite Dielectrics on Flexible Substrates

Mikolajek

Reinheimer

Bohn

et al. 2019

Sci Rep

Self Cite

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“…There have been significant improvements in the development of such materials; however, the fabrication process have been restricted by the current technology (e.g. dropcasting, spin-coating, hot pressing and roll coating), especially for complicated structures 12,13 . Microfabrication of three-dimensional (3D) structures has drawn great research interests in materials science and engineering.…”

Section: Introductionmentioning

confidence: 99%

Three dimensional printing of high dielectric capacitor using projection based stereolithography method

et al. 2016

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We report that efficient high dielectric polymer/ceramic composite materials can be optically printed into three-dimensional (3D) capacitor by the projection based stereolithography (SLA) method. Surface decoration of Ag on Pb(Zr,Ti)O 3 (PZT@Ag) particles were used as filler to enhance the dielectric permittivity. Polymer nanocomposites were fabricated by incorporating PZT@Ag particles into the photocurable polymer solutions, followed by exposure to the digitally controlled optical masks to generate 3D structures. The dielectric permittivity of Flex/PZT@Ag composite reaches as high as 120 at 100Hz with 18vol% filler, which is about 30 times higher than that of pure Flex. Furthermore, the dielectric loss is as low as 0.028 at 100Hz. The results are in good agreement with the effective medium theory (EMT) model. The calculated specific capacitance of our 3D printed capacitor is about 63 F g-1 at the current density of 0.5 A g-1. Cyclic voltammetry (CV) curves indicate 3d printed capacitors possess low resistance and ideal capacitive properties. These results not only provide a tool to fabricate capacitor with complex

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“…Despite the control of nanoparticles loading in the polymer matrix and the nanoparticles surface properties to improve the polymer/nanoparticle interaction, the obtained films using spin coating are usually non‐uniform and remain thick (3–4 µm) . Screen and inkjet printings have been also used as alternative for thin film deposition of nanocomposites . However generally, these last are characterized by a low relative permittivity (

ϵ_{normalr}

≤ 150 at 1 kHz) resulting in capacitance density largely below 0.1 μF cm −2 …”

Section: Introductionmentioning

confidence: 99%

Ba_0.6Sr_0.4TiO₃ Thin Films Deposited by Spray Coating for High Capacitance Density Capacitors

Tetsi

Philippot

Bord‐Majek

et al. 2018

Physica Status Solidi (a)

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Metal-insulator-metal (MIM) capacitors with Ba 0.6 Sr 0.4 TiO 3 (BST) thin films as insulating layers are fabricated using a novel, fast, and low-cost method. On one hand, the process lies in the swift, continuous, and scalable synthesis of BST nanoparticles using the supercritical fluid technology and, on the other hand, the nonpyrolytic spray coating of thin films using colloidal nanocrystals as ink. The authors focus on the deposition process of thin and uniform layer. A dispersed colloidal suspension based on BST nanoparticles is deposited on a hot copper substrate. A 200 nm thick dielectric film is successfully obtained. Electrical characterizations of Cu/BST/Al MIM structure demonstrate a state-of-the-art capacitance density almost reaching 1 mF cm À2 within an operating voltage range of AE1 V. Moreover, an annealing process of the dielectric layer and the final MIM capacitor at 90 C during 15 h brings a significant decrease of the leakage current by three decades from mA cm À2 to mA cm À2 .

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Direct Inkjet Printing of Dielectric Ceramic/Polymer Composite Thick Films

Cited by 27 publications

References 37 publications

Fabrication and Characterization of Fully Inkjet Printed Capacitors Based on Ceramic/Polymer Composite Dielectrics on Flexible Substrates

Fabrication and Characterization of Fully Inkjet Printed Capacitors Based on Ceramic/Polymer Composite Dielectrics on Flexible Substrates

Three dimensional printing of high dielectric capacitor using projection based stereolithography method

Ba_0.6Sr_0.4TiO₃ Thin Films Deposited by Spray Coating for High Capacitance Density Capacitors

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Direct Inkjet Printing of Dielectric Ceramic/Polymer Composite Thick Films

Cited by 27 publications

References 37 publications

Fabrication and Characterization of Fully Inkjet Printed Capacitors Based on Ceramic/Polymer Composite Dielectrics on Flexible Substrates

Fabrication and Characterization of Fully Inkjet Printed Capacitors Based on Ceramic/Polymer Composite Dielectrics on Flexible Substrates

Three dimensional printing of high dielectric capacitor using projection based stereolithography method

Ba0.6Sr0.4TiO3 Thin Films Deposited by Spray Coating for High Capacitance Density Capacitors

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Product

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Ba_0.6Sr_0.4TiO₃ Thin Films Deposited by Spray Coating for High Capacitance Density Capacitors