TY - JOUR
T1 - Novel Flexible Transparent Conductive Films with Enhanced Chemical and Electromechanical Sustainability
T2 - TiO
2
Nanosheet-Ag Nanowire Hybrid
AU - Sohn, Hiesang
AU - Kim, Seyun
AU - Shin, Weonho
AU - Lee, Jong Min
AU - Lee, Hyangsook
AU - Yun, Dong Jin
AU - Moon, Kyoung Seok
AU - Han, In Taek
AU - Kwak, Chan
AU - Hwang, Seong Ju
PY - 2018/1/24
Y1 - 2018/1/24
N2 -
Flexible transparent conductive films (TCFs) of TiO
2
nanosheet (TiO
2
NS) and silver nanowire (Ag NW) network hybrid were prepared through a simple and scalable solution-based process. The as-formed TiO
2
NS-Ag NW hybrid TCF shows a high optical transmittance (TT: 97% (90.2% including plastic substrate)) and low sheet resistance (R
s
: 40 Ω/sq). In addition, the TiO
2
NS-Ag NW hybrid TCF exhibits a long-time chemical/aging and electromechanical stability. As for the chemical/aging stability, the hybrid TCF of Ag NW and TiO
2
NS reveals a retained initial conductivity (ΔR
s
/R
s
< 1%) under ambient oxidant gas over a month, superior to that of bare Ag NW (δR
s
/R
s
> 4000%) or RuO
2
NS-Ag NW hybrid (δR
s
/R
s
> 200%). As corroborated by the density functional theory simulation, the superb chemical stability of TiO
2
NS-Ag NW hybrid is attributable to the unique role of TiO
2
NS as a barrier, which prevents Ag NW's chemical corrosion via the attenuated adsorption of sulfidation molecules (H
2
S) on TiO
2
NS. With respect to the electromechanical stability, in contrast to Ag NWs (δR/R
0
152.9%), our hybrid TCF shows a limited increment of fractional resistivity (ΔR/R
0
- 14.4%) after 200 000 cycles of the 1R bending test (strain: 6.7%) owing to mechanically welded Ag NW networks by TiO
2
NS. Overall, our unique hybrid of TiO
2
NS and Ag NW exhibits excellent electrical/optical properties and reliable chemical/electromechanical stabilities.
AB -
Flexible transparent conductive films (TCFs) of TiO
2
nanosheet (TiO
2
NS) and silver nanowire (Ag NW) network hybrid were prepared through a simple and scalable solution-based process. The as-formed TiO
2
NS-Ag NW hybrid TCF shows a high optical transmittance (TT: 97% (90.2% including plastic substrate)) and low sheet resistance (R
s
: 40 Ω/sq). In addition, the TiO
2
NS-Ag NW hybrid TCF exhibits a long-time chemical/aging and electromechanical stability. As for the chemical/aging stability, the hybrid TCF of Ag NW and TiO
2
NS reveals a retained initial conductivity (ΔR
s
/R
s
< 1%) under ambient oxidant gas over a month, superior to that of bare Ag NW (δR
s
/R
s
> 4000%) or RuO
2
NS-Ag NW hybrid (δR
s
/R
s
> 200%). As corroborated by the density functional theory simulation, the superb chemical stability of TiO
2
NS-Ag NW hybrid is attributable to the unique role of TiO
2
NS as a barrier, which prevents Ag NW's chemical corrosion via the attenuated adsorption of sulfidation molecules (H
2
S) on TiO
2
NS. With respect to the electromechanical stability, in contrast to Ag NWs (δR/R
0
152.9%), our hybrid TCF shows a limited increment of fractional resistivity (ΔR/R
0
- 14.4%) after 200 000 cycles of the 1R bending test (strain: 6.7%) owing to mechanically welded Ag NW networks by TiO
2
NS. Overall, our unique hybrid of TiO
2
NS and Ag NW exhibits excellent electrical/optical properties and reliable chemical/electromechanical stabilities.
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U2 - 10.1021/acsami.7b13224
DO - 10.1021/acsami.7b13224
M3 - Article
AN - SCOPUS:85041131440
VL - 10
SP - 2688
EP - 2700
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 3
ER -