Enhanced electrical conductivity of PEDOT-encapsulated silver nanowire film pretreated with surfactants
writer：Li Liu, Jianchun Jiang, Zhan Xu, Jiahang Zhou & Yunbo Li*
keywords：PEDOT:PSS,silver nanowire,surfactant, electrical conductivity
source：期刊
specific source：https://link.springer.com/article/10.1007/s00396-020-04771-9
Issue time：2020年
Flexible, transparent and conductive films (TCFs) were prepared with
silver nanowires (AgNWs) and the conductivity was enhanced via tuning
junction resistance between nanowires treated by different surfactants
and encapsulated by
poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS). The
results showed that the conductivity of AgNW TCFs was obviously enhanced
after being immersed into surfactant solutions because the AgNWs would
approach each other directly after dislocating away from polyvinyl
pyrrolidone (PVP) and the junction resistance sharply decreased.
Moreover, the transmittance of AgNW TCFs immersed into different
surfactant solutions just decreased little because the halogen ions
induced the formation of silver nanoparticles on the surface of AgNWs.
Besides, the conductivity of AgNW TCFs encapsulated by PEDOT:PSS was
also enhanced because the charges can transfer between PEDOT chains and
AgNWs with the little decrease of optical transmittance.