Ning Honglong, Chen Junlong, Li Zhihang, Xu Zhuohui, Yao Rihui, Liang Hongfu, Liu Taijiang, Su Guoping, Luo Dongxiang, Peng Junbiao
State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, China.
Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology, Yulin Normal University, Yulin 537000, China.
Nanomaterials (Basel). 2021 Nov 12;11(11):3047. doi: 10.3390/nano11113047.
Silver nanowire (AgNW) conductive film fabricated by solution processing was investigated as an alternative to indium tin oxide (ITO) in flexible transparent electrodes. In this paper, we studied a facile and effective method by electrodepositing AlO on the surface of AgNWs. As a result, flexible transparent electrodes with improved stability could be obtained by electrodepositing AlO. It was found that, as the annealing temperature rises, the AlO coating layer can be transformed from AlO·HO into a denser amorphous state at 150 °C. By studying the increase of electrodeposition temperature, it was observed that the transmittance of the AgNW-AlO composite films first rose to the maximum at 70 °C and then decreased. With the increase of the electrodeposition time, the figure of merit (FoM) of the composite films increased and reached the maximum when the time was 40 s. Through optimizing the experimental parameters, a high-stability AgNW flexible transparent electrode using polyimide (PI) as a substrate was prepared without sacrificing optical and electrical performance by electrodepositing at -1.1 V and 70 °C for 40 s with 0.1 mol/L Al(NO) as the electrolyte, which can withstand a high temperature of 250 °C or 250,000 bending cycles with a bending radius of 4 mm.
研究了通过溶液处理制备的银纳米线（AgNW）导电膜，以替代柔性透明电极中的氧化铟锡（ITO）。在本文中，我们研究了一种通过在AgNW表面电沉积AlO来制备柔性透明电极的简便有效方法。结果表明，通过电沉积AlO可以获得稳定性更高的柔性透明电极。研究发现，随着退火温度升高，AlO涂层在150℃时可从AlO·HO转变为密度更高的非晶态。通过研究电沉积温度的升高，观察到AgNW-AlO复合膜的透光率在70℃时先升至最大值，然后下降。随着电沉积时间的增加，复合膜的品质因数（FoM）增加，并在时间为40 s时达到最大值。通过优化实验参数，以聚酰亚胺（PI）为基底，以0.1 mol/L Al(NO)为电解液，在-1.1 V和70℃下电沉积40 s，制备了一种高稳定性的AgNW柔性透明电极，该电极在不牺牲光学和电学性能的情况下，可承受250℃的高温或弯曲半径为4 mm的250,000次弯曲循环。
