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. 2015 Jul 20;5:12238. doi: 10.1038/srep12238

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This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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SEM images of a horizontal graphene-BNNT heterojunction as contacted across by two STM probes (a) and the current-voltage (I-V) characteristics (b,c) at d = 0.73 μm, and d = 0.64 μm. Schematic drawing of a vertical heterojunction (d) and horizontal heterojunction (e) indicate the locations of DOS mismatch.