Osaka University and Master
Facile fabrication of Ag-Ni alloy nanowire for high-performance transparent conductive electrodes with enhanced long-term stability
Lingying Li (1,2*) , Wanli Li (1, 2) , Jinting Jiu (2) and Katsuaki Suganuma (2) (1) Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka, 565-0871 JAPAN (2) The Institute of Scientific and Industrial Research (ISIR), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, JAPAN
Transparent conductive electrodes (TCEs) play a fundamental role in new emerging optoelectronic devices. And silver nanowire (AgNW) has been considered as the most promising materials for the fabrication of TCEs owing to its outstanding conductivity, transmittance, flexibility and stretchability. However, the performance of AgNW based TCEs is limited by the poor corrosion resistance. There is a growing body of literature that recognizes the long-term stability of AgNW TCEs can be enhanced by adopting core-shell NW structure. But the weak binding force between the coating material and NW and the intractable coating procedure cause a non-uniformity and thick coating which jeopardize the practical application of AgNW. Herein, we introduce a highly stable TCE based on high-performance AgNW nanowire network. A facile and air-processable method has been developed to synthesis the ultrathin core-shell Ag@Ni NW. The obtained Ag-Ni based TCEs exhibit a rapid enhancement of electrical resistance to various working conditions. Notably, the simple method increases the conductivity of TCE rapidly, while, the transmission loss can be restrained strictly with the range of 5%. Comparing to the conventional NW based TCEs, the proposed fabrication technique endows them with higher processability and sheds the new light on the high-volume manufacturing.
 Eom, J. Lee, A. Pichitpajongkit, M. Amjadi, J. H. Jeong, E. Lee, J. Y. Lee and I. Park, Small, 2014, 10, 4171–4181.  R. Rathmell, M. Nguyen, M. Chi and B. J. Wiley, Nano Lett., 2012, 12, 3193–3199.  L. Zhang, Y. Chen, C. Xu, Z. Liu and Y. Qiu, RSC Adv., 2018, 8, 14532–14538. Fig 1. SEM images of (a) pristine AgNW and (b) Ag-Ni NW on polyethylene glycol terephthalate (PET) substrates.
Current major research subjects are mainly focused on the stretchable and flexible transparent conductive films (TCFs), and, synthesis of metal nanoparticles and carbon nanometerials. We develop new fabrication procedures to obtain the high-performance TCFs including low transmittance, high conductivity and long-term stability so the obtained TCFs can be applied to practical applications.
1.Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University
2.The Institute of Scientific and Industrial Research (ISIR), Osaka University