Matches in SemOpenAlex for { <https://semopenalex.org/work/W1968585137> ?p ?o ?g. }
- W1968585137 abstract "Polyethylene is commonly used as an insulator for AC power cables. However it is known to undergo chemical and physical change which can lead to dielectric breakdown. Despite almost eighty years of experimental characterization of its electrical properties, very little is known about the details of the electrical behaviour of this material at the molecular level. An understanding of the mechanisms of charge trapping and transport could help in the development of materials with better insulating properties required for the next generation of high voltage AC and DC cables. Molecular simulation techniques provide a unique tool with which to study dielectric processes at the atomic and electronic level. Here we summarise simulation methodologies which have been used to study the properties of PE at the molecular level, elucidating the role of morphology in the trapping of excess electrons. We find that polyethylene has localised states due to conformational trapping extending below the mobility edge (above which the electrons are delocalised), at -0.1±0.1eV with respect to the vacuum level. These trap states with localisation lengths between 0.3 and 1.2nm have energies as low as -0.4±0.1eV in the amorphous and interfacial regions of polyethylene with more positive values in lamella structures. Crystalline regions have a mobility edge at +0.46 ±0.1eV, so we would expect transport by electrons excited above the mobility edge to delocalised states to be predominantly through amorphous regions if they percolate the sample." @default.
- W1968585137 created "2016-06-24" @default.
- W1968585137 creator A5018457236 @default.
- W1968585137 creator A5022404127 @default.
- W1968585137 creator A5060004760 @default.
- W1968585137 creator A5073373311 @default.
- W1968585137 date "2014-08-01" @default.
- W1968585137 modified "2023-10-03" @default.
- W1968585137 title "Molecular modeling and electron transport in polyethylene" @default.
- W1968585137 cites W1544171083 @default.
- W1968585137 cites W1902016526 @default.
- W1968585137 cites W1964800197 @default.
- W1968585137 cites W1972783893 @default.
- W1968585137 cites W1973024580 @default.
- W1968585137 cites W1974797540 @default.
- W1968585137 cites W1979393322 @default.
- W1968585137 cites W1980897383 @default.
- W1968585137 cites W1982431948 @default.
- W1968585137 cites W1982595063 @default.
- W1968585137 cites W1995557348 @default.
- W1968585137 cites W2000035775 @default.
- W1968585137 cites W2003849252 @default.
- W1968585137 cites W2005496193 @default.
- W1968585137 cites W2006125535 @default.
- W1968585137 cites W2013979082 @default.
- W1968585137 cites W2017805851 @default.
- W1968585137 cites W2019465613 @default.
- W1968585137 cites W2022114287 @default.
- W1968585137 cites W2022368043 @default.
- W1968585137 cites W2023271753 @default.
- W1968585137 cites W2025222159 @default.
- W1968585137 cites W2029812052 @default.
- W1968585137 cites W2030687437 @default.
- W1968585137 cites W2030976617 @default.
- W1968585137 cites W2033498613 @default.
- W1968585137 cites W2038655828 @default.
- W1968585137 cites W2041018364 @default.
- W1968585137 cites W2041902442 @default.
- W1968585137 cites W2043772758 @default.
- W1968585137 cites W2046001409 @default.
- W1968585137 cites W2048501207 @default.
- W1968585137 cites W2050378800 @default.
- W1968585137 cites W2055032509 @default.
- W1968585137 cites W2058398316 @default.
- W1968585137 cites W2063959647 @default.
- W1968585137 cites W2066725190 @default.
- W1968585137 cites W2068074603 @default.
- W1968585137 cites W2069774919 @default.
- W1968585137 cites W2078294955 @default.
- W1968585137 cites W2104328892 @default.
- W1968585137 cites W2110725404 @default.
- W1968585137 cites W2111889920 @default.
- W1968585137 cites W2113086847 @default.
- W1968585137 cites W2127320866 @default.
- W1968585137 cites W2148792556 @default.
- W1968585137 cites W2151273602 @default.
- W1968585137 cites W2153839667 @default.
- W1968585137 cites W2157896606 @default.
- W1968585137 cites W2162139370 @default.
- W1968585137 cites W2163679046 @default.
- W1968585137 cites W2170781250 @default.
- W1968585137 cites W2230728100 @default.
- W1968585137 cites W2264002775 @default.
- W1968585137 cites W2962784850 @default.
- W1968585137 cites W2996064907 @default.
- W1968585137 cites W3034519476 @default.
- W1968585137 doi "https://doi.org/10.1109/tdei.2014.004387" @default.
- W1968585137 hasPublicationYear "2014" @default.
- W1968585137 type Work @default.
- W1968585137 sameAs 1968585137 @default.
- W1968585137 citedByCount "4" @default.
- W1968585137 countsByYear W19685851372015 @default.
- W1968585137 countsByYear W19685851372017 @default.
- W1968585137 countsByYear W19685851372019 @default.
- W1968585137 countsByYear W19685851372023 @default.
- W1968585137 crossrefType "journal-article" @default.
- W1968585137 hasAuthorship W1968585137A5018457236 @default.
- W1968585137 hasAuthorship W1968585137A5022404127 @default.
- W1968585137 hasAuthorship W1968585137A5060004760 @default.
- W1968585137 hasAuthorship W1968585137A5073373311 @default.
- W1968585137 hasBestOaLocation W19685851372 @default.
- W1968585137 hasConcept C106782819 @default.
- W1968585137 hasConcept C121332964 @default.
- W1968585137 hasConcept C133386390 @default.
- W1968585137 hasConcept C136301237 @default.
- W1968585137 hasConcept C147120987 @default.
- W1968585137 hasConcept C159467904 @default.
- W1968585137 hasConcept C159985019 @default.
- W1968585137 hasConcept C181500209 @default.
- W1968585137 hasConcept C184779094 @default.
- W1968585137 hasConcept C185592680 @default.
- W1968585137 hasConcept C18903297 @default.
- W1968585137 hasConcept C192562407 @default.
- W1968585137 hasConcept C2777924906 @default.
- W1968585137 hasConcept C2779751980 @default.
- W1968585137 hasConcept C41999313 @default.
- W1968585137 hasConcept C49040817 @default.
- W1968585137 hasConcept C56052488 @default.
- W1968585137 hasConcept C62520636 @default.
- W1968585137 hasConcept C8010536 @default.