Effect of hexagonal boron nitride on the thermal and dielectric properties of polyphenylene ether resin for high-frequency copper clad laminates

Ge, Mengni; Zhang, Jianfeng; Zhao, Chunlong; Lu, Chen; Du, Guanxiang

doi:10.1016/j.matdes.2019.108028

Cited by 62 publications

(32 citation statements)

References 42 publications

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“…[2] In this work, we consider hBN as a few-layer dielectric with a thickness of Δ hBN = 2 nm that equals to grid step. We take into account the dependence of the permittivity on its thickness [63][64][65][66] and used 𝜀 hBN = 3.6 for simulation. In addition, we simulate QDs inside a graphene waveguide as the electric dipoles excited by an external CW pump and oriented along the z-axis.…”

Section: Results: Voltage Control Of Collective Near-field Effects In Plasmonic Gold/graphene Waveguides Loaded With Ag 2 Se Quantum Dotsmentioning

confidence: 99%

Controllable Excitation of Surface Plasmon Polaritons in Graphene‐Based Semiconductor Quantum Dot Waveguides

et al. 2021

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The research aim of this study is the development of a theoretical semiclassical model of the controllable excitation and propagation of surface plasmon polaritons (SPPs) in planar graphene waveguides by the application of external voltage. The model is based on the numerical solution of the SPP's dispersion equation formulated for a system including two coupled graphene sheets with embedded quantum dots. Using the developed model, the different near-field patterns realized in the waveguides depending on the quantum dots' ordering and an external voltage applied independently to each graphene sheet with additional gold electrodes are numerically investigated. The obtained results show that the application of external voltage can locally change the chemical potential of graphene and, thereby, lead to controllable excitation of SPPs in the corresponding graphene waveguide. Furthermore, we revealed that the propagation direction of the excited SPPs is determined by the geometrical configurations of the gold electrodes that provide the required SPP routing. The investigated system offers new opportunities for near-field energy transport and concentration, which can be applied to develop ultra-compact photonic devices.

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Section: Results: Voltage Control Of Collective Near-field Effects In Plasmonic Gold/graphene Waveguides Loaded With Ag 2 Se Quantum Dotsmentioning

confidence: 99%

Controllable Excitation of Surface Plasmon Polaritons in Graphene‐Based Semiconductor Quantum Dot Waveguides

et al. 2021

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“…Besides, the dielectric loss of LT-CCLs exhibits a slight rise with the weight ratio increased to 1. Several common reasons may account for the rise of dielectric loss, that is the increasing defects and surfaces between resin and LT ceramic powders [ 15 ]. Nevertheless, these above results show a large decrease of dielectric loss in high-frequency CCLs.…”

Section: Resultsmentioning

confidence: 99%

“…In order to decrease dielectric loss and modify the dielectric constant (Dk) as well as coefficient of thermal expansion (CTE) of polymeric composites, different inorganic fillers were added into the resin matrix [ 13 , 14 , 15 ]. In the light of our previous works, Li 2 TiO 3 -MgO-LiF (LT) ceramic is an extremely good additive with Dk of 23.2, Df of 0.00012 at 8 GHz [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

MPPE/SEBS Composites with Low Dielectric Loss for High-Frequency Copper Clad Laminates Applications

Guo

Wang

Zhang³

et al. 2020

Polymers

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Copper clad laminates (CCLs) with low dissipation factor (Df) are urgently needed in the fields of high-frequency communications devices. A novel resin matrix of modified poly (2,6-dimethyl-1,4-phenylene ether) (MPPE) and styrene-ethylene/butylene-styrene (SEBS) was employed in the fabrication of high-frequency copper clad laminates (CCLs). The composites were reinforced by E-glass fabrics, which were modified with phenyltriethoxysilane (PhTES). The composite laminates obtained exhibited impressive dielectric loss of 0.0027 at 10 GHz when the weight ratio of MPPE to SEBS was 5:1. In order to modify the dielectric constant (Dk), coefficient of thermal expansion (CTE) and other performances of laminates, Li2TiO3 (LT) ceramic powders were introduced into the resin matrix. The composite laminates showed low dielectric loss of 0.0026 at 10 GHz and relatively high flexural strength of 125 MPa when the mass ratio of LT fillers to resin is 0.4. Moreover, the composite laminates all maintain low water uptake (<0.5%). The microstructure and thermal properties of composite laminates filled with LT ceramic powders were also tested. These results show that copper clad laminates prepared with modified polyphenylene ether (MPPE)/SEBS and LT ceramic fillers have strong competitiveness to fabricate printed circuit boards (PCBs) for high-frequency and high-speed applications.

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“…Even more so in this case, this value was preferred as opposed to a higher poling field such as 20 kV/mm, in order to minimize the risk of dielectric breakdown. In fact, the probability of breakdown tended to increase at larger particle concentrations [ 35 ] and film thicknesses [ 36 ]. For a polarization at high temperature, the sample was placed in an oven (Vötsch ® VT-7004, CMR AS, Bergen, Germany).…”

Section: Materials Fabricationmentioning

confidence: 99%

Influence of Matrix and Surfactant on Piezoelectric and Dielectric Properties of Screen-Printed BaTiO3/PVDF Composites

et al. 2021

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The aim of this paper was to provide insight into the impact of matrix and surfactants on the rheology, morphology, and dielectric and piezoelectric properties of screen-printed BaTiO3/PVDF composites. Two matrices were compared (PVDF–HFP and PVDF–TrFE), and lead-free BaTiO3 microparticles were added in volume fractions of 30% and 60%. Here, we demonstrated that the presence of surfactants, helping to prevent phase separation, was crucial for achieving a decent screen-printing process. Fourier-transform infrared (FTIR) spectroscopy together with scanning electron microscopy (SEM) showed that the two “fluoro-benzoic acid” surfactants established stable bonds with BaTiO3 and improved the dispersion homogeneity, while the “fluoro-silane” proved to be ineffective due to it evaporating during the functionalization process. PVDF–TrFE composites featured a more homogeneous composite layer, with fewer flaws and lower roughness, as compared with PVDF–HFP composites, and their inks were characterized by a higher viscosity. The samples were polarized in either AC or DC mode, at two different temperatures (25 °C and 80 °C). The 30% BaTiO3 PVDF–TrFE composites with two fluorinated surfactants featured a higher value of permittivity. The choice of the surfactant did not affect the permittivity of the PVDF–HFP composites. Concerning the d33 piezoelectric coefficient, experimental results pointed out that PVDF–TrFE matrices made it possible to obtain higher values, and that the best results were achieved in the absence of surfactants (or by employing the fluoro-silane). For instance, in the composites with 60% BaTiO3 and polarized at 80 °C, a d33 of 7–8 pC/N was measured, which is higher than the values reported in the literature.

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Effect of hexagonal boron nitride on the thermal and dielectric properties of polyphenylene ether resin for high-frequency copper clad laminates

Cited by 62 publications

References 42 publications

Controllable Excitation of Surface Plasmon Polaritons in Graphene‐Based Semiconductor Quantum Dot Waveguides

Controllable Excitation of Surface Plasmon Polaritons in Graphene‐Based Semiconductor Quantum Dot Waveguides

MPPE/SEBS Composites with Low Dielectric Loss for High-Frequency Copper Clad Laminates Applications

Influence of Matrix and Surfactant on Piezoelectric and Dielectric Properties of Screen-Printed BaTiO3/PVDF Composites

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