Guo Hao, Tang Jun, Zhao Miaomiao, Zhang Wei, Yang Jiangtao, Zhang Binzhen, Chou Xiujian, Liu Jun, Xue Chenyang, Zhang Wendong
Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan, Shanxi, 030051, China.
Nanoscale Res Lett. 2016 Dec;11(1):112. doi: 10.1186/s11671-016-1324-x. Epub 2016 Feb 29.
The functionality of flexible metal electrodes relies on the stable performance of a metallic film. In this study, highly stretchable anisotropic structures are designed to investigate the behaviour of silver electrodes on polydimethylsiloxane. Treated using both the oxygen plasma and the surface chemical functionalization technology, the film resistivity was reduced to 5.856 × 10(-9) Ω m after annealing at 150 °C for 30 min, which is equal to that of commercial silver films on glass. The maximum variation in the resistance was approximately 5.315 % with a strain of 50 % along the four directions, and the films also show remarkable tolerance to repetitive strain. These results prove the excellent anisotropy performance of these structures to minimize resistive strain sensitivity and thus enable durable flexible electronics.
柔性金属电极的功能依赖于金属薄膜的稳定性能。在本研究中，设计了高度可拉伸的各向异性结构，以研究银电极在聚二甲基硅氧烷上的行为。通过氧等离子体和表面化学功能化技术处理，在150℃下退火30分钟后，薄膜电阻率降低至5.856×10(-9)Ω·m，这与玻璃上的商业银膜相当。沿四个方向施加50%的应变时，电阻的最大变化约为5.315%，并且这些薄膜对重复应变也表现出显著的耐受性。这些结果证明了这些结构具有出色的各向异性性能，可将电阻应变敏感性降至最低，从而实现耐用的柔性电子器件。
