Miniaturisation of dual band monopole antennas loaded with screen printed cobalt nanoparticle ink

Sowpati, Arun; Nelo, Mikko; Palukuru, Vamsi Krishna; Juuti, Jari; Jantunen, Heli

doi:10.1049/iet-map.2012.0554

Cited by 13 publications

(4 citation statements)

References 21 publications

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“…Their cobalt nanoparticle inks had relative permeability and magnetic loss tangent values ranging between 1.5 and 3 and 0.01 and 0.06, respectively, in the 45 MHz–10 GHz band . These cobalt nanoparticle inks allow more explorations of printed electronics applications such as fabrications of radio frequency absorbers, antennas, magnetic sensors, filters, resonators, and phase shifters …”

Section: Single Element Metallic Nanoparticle Inksmentioning

confidence: 99%

Metallic Nanoparticle Inks for 3D Printing of Electronics

Tan

Chua

et al. 2019

Adv Elect Materials

210

100

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Metallic nanoparticle inks are readily obtainable from the commercial market and are commonly used for fabricating conductive tracks and patterns due to their relatively higher electrical conductivity as compared to other types of inks. These metallic nanoparticle inks are made up of electrically conductive metallic nanoparticles suspended in liquid mediums, with particle size ranging from 1 to 100 nm. However, there are also diverse types of metallic nanoparticle inks in the market (for instance, silver nanoparticle inks, gold nanoparticle inks, and copper nanoparticle inks). Metallic nanoparticle inks of different material compositions can directly influence the final electrical, material, and mechanical properties of the printed patterns. This paper presents an overview of the different types of metallic nanoparticle inks used for the 3D printing of electronics. The strengths and weaknesses of each type of ink are critically reviewed. The challenges and potentials of metallic nanoparticle inks in 3D printed electronics are also discussed. Metallic Nanoparticle InksMetallic nanoparticle inks are suspensions of metallic nanoparticles in liquid mediums (see Figure 2a), in which individual metallic nanoparticle is encapsulated in a layer of insulating organic additives and stabilizing agents (see Figure 2b). The encapsulating organic additives and stabilizing agents help prevent the metallic nanoparticles from agglomeration, but at the same time, also impede the flow of electrons from particles to particles. Therefore, sintering processes are required to remove The three-dimensional (3D) printed electronics additive manufacturing industry sector has grown substantially in the past few years, and there is increasing demand for different types of metallic nanoparticle inks in electronics printing for various applications. Metallic nanoparticle inks are commonly used for fabricating conductive tracks and patterns due to their relatively high electrical conductivity as compared to other types of inks, and they can be further categorized into single-element metallic nanoparticle inks, alloy metallic nanoparticle inks, metallic oxide nanoparticle inks, and core-shell bimetallic nanoparticle (BNP) inks. It is critical to gain a deep understanding of the metallic nanoparticle inks used in 3D printed electronics as the material properties of these inks can directly affect the final electrical and mechanical properties of the printed patterns. This review presents an overview of the available metallic nanoparticle inks used for 3D printing of electronics, and critically reviews the strengths and weaknesses of each type of ink. Finally, the challenges of metallic nanoparticle inks in 3D printed electronics are also discussed along with the future outlook for 3D printed electronics.

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Section: Single Element Metallic Nanoparticle Inksmentioning

confidence: 99%

Metallic Nanoparticle Inks for 3D Printing of Electronics

Tan

Chua

et al. 2019

Adv Elect Materials

210

100

View full text Add to dashboard Cite

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“…Furthermore, the high polarity of the PVP component of the binder may also influence the dielectric characteristics of the graphene composite film. Besides, the linoleic acid adsorption (most likely through the covalent bonding of carboxylic groups on the filler's surface) at the graphene/solvent interface in the screen printing paste modifies the surface electric properties (i.e., surface impedance) of the carbon filler [34,35]. Finally, the high surface roughness of the graphene-ethyl cellulose composite film compared to the graphene-PVB + PVP one could also impact on the surface impedance of the former.…”

Section: Microstrip Lines Analysismentioning

confidence: 99%

Morphological and Radio Frequency Characterization of Graphene Composite Films

Quaranta

Miscuglio

Bayat

et al. 2018

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Graphene is a monolayer of carbon atoms which exhibits remarkable electronic and mechanical properties. Graphene based nano-materials have gained a lot of interest for many applications. In this paper, inks with three different graphene concentrations (12.5, 25, and 33 wt % in graphene) were prepared and deposited by screen printing. A detailed investigation of films' surface morphology using Scanning Electron Microscope (SEM) and Atomic Force Microscopy (AFM) revealed that the graphene films present a homogeneous dispersion of the filler with a comparatively lower surface roughness at higher concentrations and negligible agglomerates. The films were then printed between copper electrodes on FR-4 substrate (trade name for glass-reinforced epoxy laminate material), commonly used in Radio Frequency (RF) circuits, and the measured scattering parameters analyzed. Finally, the reflection coefficient of a patch antenna, fabricated on FR-4 substrate with and without a stub loaded by a thin film were measured. The difference of the resonant frequency due to the different interaction between graphene flakes and polymer binders shows attractive features of functionalized graphene films for chemical and bio-sensing applications.

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“…1. 12 Microstrip, ground plane and shorted plane were made of copper. One end of the microstrip line was shorted to the ground and other end was soldered to a SubMiniature version A (SMA) coaxial connector.…”

Section: Microwave Characterisationmentioning

confidence: 99%

“…In this work its applicability on inks based on dry cobalt nanoparticle powder is investigated and the formulation of inks with different loading levels is presented. The same cobalt nanoparticles have been used in earlier works [10][11][12] with different binder materials, suitable for metal substrates. These inks were used on for example for antenna miniaturization as in Refs.…”

Section: Introductionmentioning

confidence: 99%

Cobalt Nanoparticle Inks for Printed High Frequency Applications on Polycarbonate

Nelo

Myllymäki

Juuti

et al. 2015

Journal of Elec Materi

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In this work the high frequency properties of low curing temperature cobalt nanoparticle inks printed on polycarbonate substrates were investigated. The inks consisted of 30-70 vol.% metallic cobalt nanoparticles and poly (methylene methacrylate) polymer, having excellent adhesion on polycarbonate and a curing temperature of 110°C. The influence of binder material content on the electromagnetic properties of the ink was investigated using the shorted microstrip transmission-line perturbation method. Changes in mechanical properties were evaluated with adhesion tests using the pull-out strength test and the ASTM D 3359-B cross-hatch tape peel test. The microstructure of the printed patterns was investigated with field emission scanning electron microscopy (FESEM). The inks remained mechanically durable with metal contents up to 60 vol.%, achieving pull-off strength of up to 5.2 MPa and the highest marks in adhesion of the tape peel test. The inks obtained a relative permeability of 1.5-3 in the 45 MHz-10 GHz band with a magnetic loss tangent of 0.01-0.06. The developed inks can be utilized in various printed electronics applications such as antenna miniaturization, antenna substrates and magnetic sensors or sensing.

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Miniaturisation of dual band monopole antennas loaded with screen printed cobalt nanoparticle ink

Cited by 13 publications

References 21 publications

Metallic Nanoparticle Inks for 3D Printing of Electronics

Metallic Nanoparticle Inks for 3D Printing of Electronics

Morphological and Radio Frequency Characterization of Graphene Composite Films

Cobalt Nanoparticle Inks for Printed High Frequency Applications on Polycarbonate

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