Page 262 - Carbon Nanotube Fibres and Yarns

252 Carbon Nanotube Fibers and Yarns

–2
Areal capacitance (mF cm )
100 10 1 0.1 10k
Areal capacitance 100
–2
(mF cm )
100 10 1 8k
20 80
16
Scan rate (Vs –1 ) Scan rate (Vs –1 )
12 60 6k
8 40 Cycles
4 4k
0
20
10 (F cm ) 100 1
2k
–3
0
Volumetric capacitance
(C)
100 10 1 0.1 0
(E)
Volumetric capacitance (F cm )
–3
1.0 0 0.8 0.6 0.4 Capacitance ratio (C/C ) 0.2 (A) SEM images of a biscrolled yarn with ~37° bias angle. Scale bar, 10 μm. (B) Two SEM images of a PEDOT/MWCNT

2k biscrolled yarn that is plied with a 25 μm Pt wire. Scale bar, 40 μm. (C) Volumetric capacitance vs scan rate. (D) Bending a flexible polyethylene terephthalate film (k is curvature in mm −1 ). (E) Weaving a 5 cm long yarn SC into a glove. (Reproduced with permis- sion f
K = 0.2

0
2k
K = 0.1 Cycles

0
2k
K = 0 Nat. Commun. 4 (2013) 1970–1977.)

0 (D)
1.0 0.8 0.6 0.4 0.2
Fig. 10.2
0
Capacitance ratio (C/C )