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231223s2011 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201003503
|2 doi
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|a eng
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1 |
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|a Shuai, Zhigang
|e verfasserin
|4 aut
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|a Evaluation of charge mobility in organic materials
|b from localized to delocalized descriptions at a first-principles level
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|c 2011
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 27.06.2011
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|a Date Revised 30.09.2020
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|a published: Print
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|a Citation Status MEDLINE
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|a The carrier mobility for carbon electronic materials is an important parameter for optoelectronics. We report here some recently developed theoretical tools to predict the mobility without any free parameters. Carrier scatterings with phonons and traps are the key factors in evaluating the mobility. We consider three major scattering regimes: i) where the molecular internal vibration severely induces charge self-trapping and, thus, the hopping mechanism dominates; ii) where both intermolecular and intramolecular scatterings come to play roles, so the Holstein-Peierls polaron model is applied; and, iii) where charge is well delocalized with coherence length comparable with acoustic phonon wavelength, so that a deformation potential approach is more appropriate. We develop computational methods at the first-principles level for the three different cases that have extensive potential application in rationalizing material design
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Review
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|a Organic Chemicals
|2 NLM
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| 700 |
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|a Wang, Linjun
|e verfasserin
|4 aut
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| 700 |
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|a Li, Qikai
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 23(2011), 9 vom: 04. März, Seite 1145-53
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|x 1521-4095
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|g volume:23
|g year:2011
|g number:9
|g day:04
|g month:03
|g pages:1145-53
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