Towards model-based engineering of optoelectronic packaging materials: dielectric constant modeling

Vo, H.T.; Shi, Frank G.

doi:10.1016/s0026-2692(02)00010-1

Cited by 197 publications

(111 citation statements)

References 6 publications

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“…[39,40] Furthermore, Vo and Shi discuss the presence of a molecular polarizability at the filler-polymer interphase, which might also influence the resulting permittivity. [41] As the filler-polymer interphase increases in line with a decrease in filler size at a given loading, it is expected that a change in relative permittivity will be observed.…”

Section: Modification Of Droplet Size and Its Influence On The Dielecmentioning

confidence: 99%

Glycerol as high‐permittivity liquid filler in dielectric silicone elastomers

Mazurek

Gerhard

et al. 2016

J of Applied Polymer Sci

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A recently reported novel class of elastomers was tested with respect to its dielectric properties.The new elastomer material is based on a commercially available polydimethylsiloxane (PDMS) composition, which has been modified by embedding glycerol droplets into its matrix. The approach has two major advantages that make the material useful in a dielectric actuator. First, the glycerol droplets efficiently enhance the dielectric constant which can reach astonishingly high values in the composite. Second, the liquid filler also acts as a softener that effectively decreases the elastic modulus of the composite. In combination with very low cost and easy preparation, the two property enhancements lead to an extremely attractive dielectric elastomer material. Experimental permittivity data are compared to various theoretical models that predict relative-permittivity changes as a function of filler loading, and the applicability of the models is discussed.

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Section: Modification Of Droplet Size and Its Influence On The Dielecmentioning

confidence: 99%

Glycerol as high‐permittivity liquid filler in dielectric silicone elastomers

Mazurek

Gerhard

et al. 2016

J of Applied Polymer Sci

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“…Several models have been proposed and used to predict the effects of second phases on the dielectric properties of composites such as the Maxwell-Garnett's equation [30], the Lichtenecker's equation [31], the Bruggeman's equation [32], the Jayasundere-Smith's equation [33], the Effective Medium Theory (EMT) [31] and the Poon-Shin's equation [34].…”

Section: Introductionmentioning

confidence: 99%

Dielectric permittivity calculation of composites based on electrospun barium titanate fibers

Reboredo

Parra

Castro

2015

Mater. Res. Express

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On the basis of theoretical predictions and experimental results, an empirical method using upper bound equation of the rule of mixtures (ROM) is reported to predict the dielectric permittivity of barium titanate nanofibers. In addition, composites with low volume fraction of BaTiO 3 fiber layers embedded in epoxy resin were prepared and characterized. The relative permittivities of composites with perpendicular and parallel configurations, with respect to the electrodes, were calculated by means of the ROM model. The predicted permittivities matched precisely the obtained experimental values.

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“…The thickness of the interfacial layer is dependent on the degree of interaction between the polymer and the particle, which results in a nonmonotonic relationship of the dielectric constant with particle volume fraction. 67,76,77 The so-called dielectric constant of the interphase can be as high as 280 for PI-Alumina composites. That is, the " in /" m is around 80.…”

Section: Conductor-dielectric Compositesmentioning

confidence: 99%

Physical aspects of 0-3 dielectric composites

2015

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0-3 dielectric composites with high dielectric constants have received great interest for various technological applications. Great achievements have been made in the development of high performance of 0-3 composites, which can be classified into dielectricdielectric (DDCs) and conductor-dielectric composites (CDCs). However, predicting the dielectric properties of a composite is still a challenging problem of both theoretical and practical importance. Here, the physical aspects of 0-3 dielectric composites are reviewed. The limitation of current understanding and new developments in the physics of dielectric properties for dielectric composites are discussed. It is indicated that the current models cannot explain well the physical aspects for the dielectric properties of 0-3 dielectric composites. For the CDCs, experimental results show that there is a need to find new equations/models to predict the percolative behavior incorporating more parameters to describe the behavior of these materials. For the DDCs, it is indicated that the dielectric loss of each constituent has to be considered, and that it plays a critical role in the determination of the dielectric response of these types of composites. The differences in the loss of the constituents can result in a higher dielectric constant than both of the constituents combined, which breaks the Wiener limits.

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Towards model-based engineering of optoelectronic packaging materials: dielectric constant modeling

Cited by 197 publications

References 6 publications

Glycerol as high‐permittivity liquid filler in dielectric silicone elastomers

Glycerol as high‐permittivity liquid filler in dielectric silicone elastomers

Dielectric permittivity calculation of composites based on electrospun barium titanate fibers

Physical aspects of 0-3 dielectric composites

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