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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201701864
|2 doi
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|a pubmed24n0913.xml
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|a (DE-627)NLM273898175
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|a (NLM)28714119
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Azizi, Amin
|e verfasserin
|4 aut
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|a High-Performance Polymers Sandwiched with Chemical Vapor Deposited Hexagonal Boron Nitrides as Scalable High-Temperature Dielectric Materials
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 18.07.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Polymer dielectrics are the preferred materials of choice for power electronics and pulsed power applications. However, their relatively low operating temperatures significantly limit their uses in harsh-environment energy storage devices, e.g., automobile and aerospace power systems. Herein, hexagonal boron nitride (h-BN) films are prepared from chemical vapor deposition (CVD) and readily transferred onto polyetherimide (PEI) films. Greatly improved performance in terms of discharged energy density and charge-discharge efficiency is achieved in the PEI sandwiched with CVD-grown h-BN films at elevated temperatures when compared to neat PEI films and other high-temperature polymer and nanocomposite dielectrics. Notably, the h-BN-coated PEI films are capable of operating with >90% charge-discharge efficiencies and delivering high energy densities, i.e., 1.2 J cm-3 , even at a temperature close to the glass transition temperature of polymer (i.e., 217 °C) where pristine PEI almost fails. Outstanding cyclability and dielectric stability over a straight 55 000 charge-discharge cycles are demonstrated in the h-BN-coated PEI at high temperatures. The work demonstrates a general and scalable pathway to enable the high-temperature capacitive energy applications of a wide range of engineering polymers and also offers an efficient method for the synthesis and transfer of 2D nanomaterials at the scale demanded for applications
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|a Journal Article
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|a 2D materials
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|a chemical vapor deposition
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|a dielectrics
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|a electrical energy storage
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|a high temperature
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|a Gadinski, Matthew R
|e verfasserin
|4 aut
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1 |
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|a Li, Qi
|e verfasserin
|4 aut
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|a AlSaud, Mohammed Abu
|e verfasserin
|4 aut
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|a Wang, Jianjun
|e verfasserin
|4 aut
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|a Wang, Yi
|e verfasserin
|4 aut
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|a Wang, Bo
|e verfasserin
|4 aut
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1 |
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|a Liu, Feihua
|e verfasserin
|4 aut
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|a Chen, Long-Qing
|e verfasserin
|4 aut
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|a Alem, Nasim
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Qing
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 29(2017), 35 vom: 01. Sept.
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:29
|g year:2017
|g number:35
|g day:01
|g month:09
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|u http://dx.doi.org/10.1002/adma.201701864
|3 Volltext
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