Journal
CERAMICS INTERNATIONAL
Volume 46, Issue 4, Pages 4344-4350Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2019.10.157
Keywords
Thin films; Flexible; Transparent conductive; ATO; Environmental stability
Categories
Funding
- Natural Science Foundation of Tianjin City [18.1CONJC01300]
- National Natural Science Foundation of China [61701338]
- Foundation (B) for Peiyang Scholar-Young Core Faculty of Tianjin University [2018XRG-0020]
- Scientific Research Foundation for High-Level Talents (Innovative Team) of Dongguan University of Technology [KCYCXPT2017003]
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Indium-free flexible transparent conductive thin films (TCFs) composed of silver nanowire (AgNW) networks and Sb doped SnO2 (ATO) layers were prepared on polyethylene terephthalate (PET) substrates. The ATO layers were deposited via radio frequency (RF) magnetron sputtering at room temperature. The AgNWs were achieved via a modified polyol reduction method and embedded between the ATO layers. The effects of AgNW networks and ATO layers on electrical and optical properties of the ATO/AgNWs/ATO flexible tri-layer thin films are investigated. The ATO layers can improve the optical transmittance and reduce the resistivity of tri-layers, and the corresponding mechanisms are proposed. Typically, an ATO/AgNWs/ATO flexible tri-layers show a high figure of merit value (30.06 x 10(-3) Omega(-1)) with a low sheet resistance of 7.1 Omega/sq. and a high transmittance of 85.7%. Meanwhile, the tri-layers present excellent mechanical flexibility, and the ATO layers acted as the protecting layers improve the adhesive and environmental stability at high temperature and humidity for the ATO/AgNWs/ATO flexible tri-layers. These results indicate that ATO/AgNWs/ATO flexible tri-layer thin films can be useful for the fabrication of wearable electronic devices.
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