Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 2688-2700 |
| Number of pages | 13 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 10 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2018 Jan 24 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
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Novel Flexible Transparent Conductive Films with Enhanced Chemical and Electromechanical Sustainability : TiO 2 Nanosheet-Ag Nanowire Hybrid. / Sohn, Hiesang; Kim, Seyun; Shin, Weonho; Lee, Jong Min; Lee, Hyangsook; Yun, Dong Jin; Moon, Kyoung Seok; Han, In Taek; Kwak, Chan; Hwang, Seong Ju.
In: ACS Applied Materials and Interfaces, Vol. 10, No. 3, 24.01.2018, p. 2688-2700.Research output: Contribution to journal › Article
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 -