Facile Fabrication of Flexible Electrodes and Immobilization of Silver Nanoparticles on Nanoscale Silicate Platelets to Form Highly Conductive Nanohybrid Films for Wearable Electronic Devices
Facile Fabrication of Flexible Electrodes and Immobilization of Silver Nanoparticles on Nanoscale Silicate Platelets to Form Highly Conductive Nanohybrid Films for Wearable Electronic Devices
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DOI：
10.3390/nano10010065
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发表时间：
2020-01-01
期刊：
影响因子：
5.3
通讯作者：
Lin, Jiang-Jen
中科院分区：
文献类型：
--
作者：
Huang, Peng-Yang;Chiu, Chih-Wei;Lin, Jiang-Jen
本研究研究了有机/无机纳米杂化溶液中含有有机聚合物分散剂和二维纳米级硅酸盐片作为无机稳定剂分散在纳米银颗粒上后制备的具有显著高导电性的薄膜。透射电镜显示，用N，N-二甲基甲酰胺在水溶液中原位化学还原AgNO3合成的纳米银颗粒平均直径约为20 nm。在1 μ m厚的薄膜上制备了纳米银薄膜，薄膜电阻低，为8.24 x 10(-4) Omega/sq，通过纳米银表面迁移，在300℃下烧结形成互连网络。在纳米级硅酸盐薄片/聚氧乙烯-分段聚酰亚胺/AgNO3的重量比为1:10:35的情况下，银纳米颗粒的含量为5wt %。在烧结过程中，混合膜的颜色由金色变为乳白色，表明银纳米粒子迁移并形成了相互连接的网络。研究结果为新型银基心电图电极的制造和可穿戴电子设备的柔性无线心电图测量系统提供了前景。
This study investigated films with remarkably high electrical conductivity after they were easily prepared from organic/inorganic nanohybrid solutions containing an organic polymeric dispersant and two-dimensional nanoscale silicate platelets as the inorganic stabilizer dispersed with silver nanoparticles. Transmission electron microscopy shows that the production of silver nanoparticles synthesized by the in situ chemical reduction of AgNO3 in an aqueous solution by N,N-dimethylformamide results in an average silver nanoparticle diameter of circa 20 nm. Thin films of silver nanoparticles were prepared on a 1-mu m-thick film with a low sheet resistance of 8.24 x 10(-4) Omega/sq, achieved through the surface migration of silver nanoparticles and prepared by sintering at 300 degrees C to form an interconnected network. This was achieved with a silver nanoparticle content of 5 wt%, using nanoscale silicate platelets/polyoxyethylene-segmented polyimide/AgNO3 at a weight ratio of 1:10:35. During sintering, the color of the hybrid film changed from gold to milky white, suggesting the migration of silver nanoparticles and the formation of an interconnected network. The results show promise for the fabrication of novel silver-based electrocardiogram electrodes and a flexible wireless electrocardiogram measurement system for wearable electronics.