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. 2016 Apr 15;3:8. doi: 10.1186/s40580-016-0068-8

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© Jin et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 4 — a A schematic depiction of the nitrogen doping process of reduced graphene oxide (RGO) and b a bulk heterojunction (BHJ) organic solar cell (OSC) made using a N-doped graphene/poly-3-hexylthiophene (P3HT):6,6-phenyl-C₆₁-butyric acid methyl ester (PCBM) photoactive layer. Reprinted with permission from Jun et al. [47], © 2013, RSC