Supplementary Information
Uniformly Connected Conductive Networks on Cellulose Nanofiber
Paper for Transparent Paper Electronics
Hirotaka Koga,* Masaya Nogi,* Natsuki Komoda, Thi Thi Nge, Tohru Sugahara and Katsuaki
Suganuma
*Corresponding author: H. Koga, M. Nogi
The Institute of Scientific and Industrial Research, Osaka University
8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
Phone: +81-6-6879-8521, Fax: +81-6-6879-8522
E-mail address: hkoga@eco.sanken.osaka-u.ac.jp; nogi@eco.sanken.osaka-u.ac.jp
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100
Transmittance (%)
Nanopaper
80
60
AgNW@nanopaper
40
20
0
200
300
400
500
600
700
800
Wavelength (nm)
Figure S1 Specular transmittance as a function of wavelength for original nanopaper (solid line)
and AgNW@nanopaper prepared by filtration coating (dotted line). Sheet resistance of the
AgNW@nanopaper was 12 Ω sq.–1.
2
Transmittance (%)
100
AgNW [This work]
ITO [1]
Cu/Ti [2]
CVD-grown Graphene [3]
Reduced graphene oxide [4]
CVD-grown SWNT [5]
DWNT [6]
SWNT [7]
CuNW [8]
PEDOT/PSS [9]
90
80
70
60
101
102
103
Sheet resistance (Ω sq-1)
Figure S2 Transmittance versus sheet resistance for the state-of-the-art transparent conductive
films. The AgNW@nanopaper prepared in this study offered sheet resistance of 12 Ω sq.–1 with
optical transparency of 88% (red circle). This transparent conductive performance was superior to
those of ITO prepared by sputtering (black circle, 50–300 Ω sq.–1, 90% [1]), Cu/Ti prepared by
sputtering (black triangle, 16 Ω sq.–1, 86% [2]), CVD-grown graphene (blue circle, 30 Ω sq.–1,
90% [3]), reduced graphene oxide (blue triangle, 800 Ω sq.–1, 82% [4]), CVD-grown singlewalled carbon nanotube (SWNT) (green circle, 50 Ω sq.–1, 70% [5]), double-walled carbon
nanotube (DWNT) prepared by dip coating (green triangle, 100 Ω sq.–1, 90% [6]), SWNT
prepared by bar coating and photonic curing (green square, 68 Ω sq.–1, 89% [7]), CuNW prepared
by
bar
coating
(pink
circle,
186
Ω
sq.–1,
90%
[8]),
poly(3,4-
ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT/PSS) prepared by spin coating (gray
circle, 176 Ω sq.–1, 88% [9]).
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