Application of nitrogen-doped graphene nanosheets in electrically conductive adhesives Original Research Article Carbon, Available online 16 October 2013, Pages Nen-Wen Pu, You-Yu Peng, Po-Chiang Wang, Chun-Yu Chen, Jia-Nan Shi, Yih-Ming Liu, Ming-Der Ger, Chien-Liang Chang
Graphical abstractHighly conductive N-doping graphene nanosheets (N-GNSs) were mixed with silver particles and resin to form electrically conductive adhesives (ECAs). At low Ag loading, Ag particles alone are still too sparse to form an interconnected conductive network. The addition of N-GNSs, due to their good conductivity, high specific surface area, and excellent aspect ratio, can easily bridge the gaps between the Ag particles. Adding merely 1 wt.% of N-GNSs can convert an insulating 30-wt.%-Ag-filled polymer resin into a conductor with a resistivity of ∼ 4.4 × 10-2Ω-cm. Well-dispersed Ag particles were clearly identified as the bright spots in the backscattered electron micrographs.
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