期刊
SMALL
卷 12, 期 11, 页码 1521-1526出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201503091
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资金
- EU
- Swedish Foundation for Strategic Research (SSF) Frame Project [SE13-0061]
- SSF Project [EM11-0002]
- Production Area of Advance program, Chalmers, Sweden
- National Chinese Science Foundation Project [51272153]
- Shanghai Governmental Program [12JC1403900]
- Swedish Foundation for Strategic Research (SSF) [SE13-0061] Funding Source: Swedish Foundation for Strategic Research (SSF)
In this paper, an embedded fin-like metal-coated carbon nanotube (Fin-M/CNT) structure is demonstrated for flexible and transparent conductor wire applications. Embedded in a polydimethylsiloxane polymeric substrate, Fin-M/CNT wires with a minimum width of 5 mu m and a minimum pitch of 10 mu m have been achieved. Direct current resistances of single Fin-M/CNT wires, where the supporting CNT structures have been covered by Ti/Al/Au metal coatings of different thicknesses, have been measured. The high aspect ratio of the fin-like structures not only improves the adhesion between the wires and the polymeric substrate, but also yields a low resistance at a small surface footprint. In addition, transparent Fin-M/CNT grid lines with hexagonal patterns, with a sheet resistance of as low as 45 Omega sq(-1), have been achieved at an optical transmittance of 88%. The robustness of the Fin-M/CNT structures has been demonstrated in bending tests up to 500 cycles and no significant changes in wire resistances are observed.
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