Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 110, Issue 1, Pages 29-34Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-012-7399-z
Keywords
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Funding
- Basic Science Research Program through the Ministry of Education, Science and Technology (MEST) of Korea [2012-007120]
- Converging Research Center Program through the Ministry of Education, Science and Technology (MEST) of Korea [2012K001236]
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We demonstrate the fabrication of graphene-carbon nanotubes (CNTs) composite-based flexible transparent conductive films (GC-TCFs) and their improved durability on repetitive strain. The graphene and CNTs are synthesized using thermal chemical vapor deposition. To fabricate GC-TCFs, the graphenes are transferred and the CNTs are successively spray-deposited on polymer substrates, respectively. The change of electrical property of the TCFs is investigated as the response of repetitive strain loading and unloading. The sheet resistance of the GC-TCFs is much lower than CNT-based TCFs, owing to the lower contact resistance. In addition, when the cyclic strain is applied on the GC-TCFs, the films show improved durability in electrical property compared to graphene-based TCFs. Finally, the coated CNTs act as one dimensional conductive path across the cracks, which prevent electrical degradation during the repetitive strain application.
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