Journal ArticleDOI
Interfaces: nanometric dielectrics
TLDR
In this article, it is argued that the properties of the interfaces between the particles and the matrix will have an increasingly dominant role in determining dielectric performance as the particle size decreases.Abstract:
The incorporation of nanometric size particles in a matrix to form dielectric composites shows promise of materials (nanodielectrics) with new and improved properties. It is argued that the properties of the interfaces between the particles and the matrix, which will themselves be of nanometric dimensions, will have an increasingly dominant role in determining dielectric performance as the particle size decreases. The forces that determine the electrical and dielectric properties of interfaces are considered, with emphasis on the way in which they might influence composite behaviour. A number of examples are given in which interfaces at the nanometric level exercise both passive and active control over dielectric, optical and conductive properties. Electromechanical properties are also considered, and it is shown that interfaces have important electrostrictive and piezoelectric characteristics. It is demonstrated that the process of poling, namely subjecting macroscopic composite materials to electrical stress and raised temperatures to create piezoelectric materials, can be explained in terms of optimizing the collective response of the nanometric interfaces involved. If the electrical and electromechanical features are coupled to the long-established electrochemical properties, interfaces represent highly versatile active elements with considerable potential in nanotechnology.read more
Citations
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Journal ArticleDOI
Fundamentals, processes and applications of high-permittivity polymer–matrix composites
Zhi-Min Dang,Zhi-Min Dang,Zhi-Min Dang,Jinkai Yuan,Jun-Wei Zha,Tao Zhou,Shengtao Li,Guo-Hua Hu,Guo-Hua Hu +8 more
TL;DR: In this paper, the authors focus on the important role and challenges of high-k polymer-matrix composites (PMC) in new technologies and discuss potential applications of highk PMC.
Journal ArticleDOI
Recent Progress on Ferroelectric Polymer-Based Nanocomposites for High Energy Density Capacitors: Synthesis, Dielectric Properties, and Future Aspects.
TL;DR: This Review presents a comprehensive review of the use of ferroelectric polymers, especially PVDF and PVDF-based copolymers/blends as potential components in dielectric nanocomposite materials for high energy density capacitor applications.
Journal ArticleDOI
Flexible Nanodielectric Materials with High Permittivity for Power Energy Storage
TL;DR: This review first outlines the crucial issues in the nanodielectric field and then focuses on recent remarkable research developments in the fabrication of FNDMs with special constitutents, molecular structures, and microstructures.
Journal ArticleDOI
Polymer Composite and Nanocomposite Dielectric Materials for Pulse Power Energy Storage
Peter Barber,Shiva Balasubramanian,Yogesh Kumar Anguchamy,Shushan Gong,Arief Wibowo,Hongsheng Gao,Harry J. Ploehn,Hans-Conrad zur Loye +7 more
TL;DR: In this article, a review summarizes the current state of polymer composites used as dielectric materials for energy storage, focusing on materials: polymers serving as the matrix, inorganic fillers used to increase the effective dielectrics constant, and various recent investigations of functionalization of metal oxide fillers to improve compatibility with polymers.
Journal ArticleDOI
Polymer-Based Dielectrics with High Energy Storage Density
TL;DR: In this article, the authors reviewed recent progress made in the development of polymer dielectrics with high energy storage density, which can potentially lead to significant weight and volume reduction in polymer film capacitors.
References
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TL;DR: The forces between atoms and molecules are discussed in detail in this article, including the van der Waals forces between surfaces, and the forces between particles and surfaces, as well as their interactions with other forces.
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Extraordinary optical transmission through sub-wavelength hole arrays
Thomas W. Ebbesen,Thomas W. Ebbesen,Henri J. Lezec,H. F. Ghaemi,Tineke Thio,Peter A. Wolff,Peter A. Wolff +6 more
TL;DR: In this article, the optical properties of submicrometre cylindrical cavities in metallic films were explored and it was shown that arrays of such holes display highly unusual zero-order transmission spectra at wavelengths larger than the array period, beyond which no diffraction occurs.
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Self-assembly at all scales.
TL;DR: Self-assembling processes are common throughout nature and technology and involve components from the molecular to the planetary scale and many different kinds of interactions.
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High-κ gate dielectrics: Current status and materials properties considerations
TL;DR: In this paper, a review of the literature in the area of alternate gate dielectrics is given, based on reported results and fundamental considerations, the pseudobinary materials systems offer large flexibility and show the most promise toward success.
Journal ArticleDOI
Spectral properties and relaxation dynamics of surface plasmon electronic oscillations in gold and silver nanodots and nanorods
TL;DR: In this paper, the surface plasmon absorption of noble metal nanoparticles was studied and the effects of size, shape, and composition on the plasman absorption maximum and its bandwidth were discussed.