High performance of carbon nanotubes/silver nanowires-PET hybrid flexible transparent conductive films via facile pressing-transfer technique.
To obtain low sheet resistance, high optical transmittance, small open spaces in conductive networks, and enhanced adhesion of flexible transparent conductive films, a carbon nanotube (CNT)/silver nanowire (AgNW)-PET hybrid film was fabricated by mechanical pressing-transfer process at room temperature. The morphology and structure were characterized by scanning electron microscope (SEM) and atomic force microscope (AFM), the optical transmittance and sheet resistance were tested by ultraviolet-visible spectroscopy (UV-vis) spectrophotometer and four-point probe technique, and the adhesion was also measured by 3M sticky tape. The results indicate that in this hybrid nanostructure, AgNWs form the main conductive networks and CNTs as assistant conductive networks are filled in the open spaces of AgNWs networks. The sheet resistance of the hybrid films can reach approximately 20.9 to 53.9 Ω/□ with the optical transmittance of approximately 84% to 91%. The second mechanical pressing step can greatly reduce the surface roughness of the hybrid film and enhance the adhesion force between CNTs, AgNWs, and PET substrate. This process is hopeful for large-scale production of high-end flexible transparent conductive films.
Institute for Advanced Materials, Jiangsu University, Xuefu road 301 Zhenjiang 212013, China.
Mao-Xiang
MX
Jing
Institute for Advanced Materials, Jiangsu University, Xuefu road 301 Zhenjiang 212013, China.
Chong
C
Han
Institute for Advanced Materials, Jiangsu University, Xuefu road 301 Zhenjiang 212013, China.
Min
M
Li
Institute for Advanced Materials, Jiangsu University, Xuefu road 301 Zhenjiang 212013, China.
Xiang-Qian
XQ
Shen
Adhesion; CNTs/AgNWs; Flexible transparent conductive film; Pressing-transfer