Journal
CARBON
Volume 164, Issue -, Pages 111-120Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2020.03.042
Keywords
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Funding
- National Key Research and Development Program of China [2017YFB0307000]
- National Natural Science Foundation of China [51973093, U1533122, 51773094]
- Natural Science Foundation of Tianjin [18JCZDJC36800]
- Science Foundation for Distinguished Young Scholars of Tianjin [18JCJQJC46600]
- Fundamental Research Funds for the Central Universities [63171219]
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University [LK1704]
- National Special Support Plan for High-level Talents people [C041800902]
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A porous structure based on a solution-based approach is highly desired for electrodes in flexible electronics due to the requirements of efficient electron and mass transfer. However, such a structure is largely unexplored for MXene-based electrodes. Here, we developed a solution-based self-assembly system to produce a conductive film with a high void space. Using water evaporation-induced self-assembly, a dendritic-lamellar MXene/carbon nanotube/polyvinylpyrrolidone electrode with high flexibility was prepared. By printing this electrode on hemisphere bumps of natural rubber substrates, a tactile sensor was prepared using face-to-face contacting of the hemisphere bumps. A detection limit of 0.69 Pa and a response time of similar to 48 ms were obtained for the sensor, which were demonstrated for voice recognition and pulse measurement. An artificial skin realized a resolution of n(2) using 2n connection ports based on the printed MXene/SWCNT/PVP electrode. This solution-based self-assembly for construction of MXene-related composites can be applied to other two-dimensional nanomaterials. (C) 2020 Elsevier Ltd. All rights reserved.
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