Charge carrier transport across grain boundaries in graphene
نویسندگان
چکیده
منابع مشابه
Topological aspects of charge-carrier transmission across grain boundaries in graphene.
Dislocations and grain boundaries are intrinsic topological defects of large-scale polycrystalline samples of graphene. These structural irregularities have been shown to strongly affect electronic transport in this material. Here, we report a systematic investigation of the transmission of charge carriers across the grain-boundary defects in polycrystalline graphene by means of the Landauer-Bü...
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Graphene produced by chemical vapor deposition (CVD) is polycrystalline, and scattering of charge carriers at grain boundaries (GBs) could degrade its performance relative to exfoliated, single-crystal graphene. However, the electrical properties of GBs have so far been addressed indirectly without simultaneous knowledge of their locations and structures. We present electrical measurements on i...
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Andrey Y. Serov, Zhun-Yong Ong, and Eric Pop Department of Electrical & Computer Engineering, University of Illinois, Urbana-Champaign, Illinois 61801, USA Micro and Nanotechnology Laboratory, University of Illinois, Urbana-Champaign, Illinois 61801, USA Department of Physics, University of Illinois, Urbana-Champaign, Illinois 61801, USA Beckman Institute, University of Illinois, Urbana-Champai...
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The propagation of a heat pulse in a single crystal and across grain boundaries (GBs) is simulated using a concurrent atomistic-continuum method furnished with a coherent phonon pulse model. With a heat pulse constructed based on a Bose-Einstein distribution of phonons, this work has reproduced the phenomenon of phonon focusing in single and polycrystalline materials. Simulation results provide...
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ژورنال
عنوان ژورنال: Acta Materialia
سال: 2018
ISSN: 1359-6454
DOI: 10.1016/j.actamat.2018.05.019