Solvent-Enhanced Transparent Stretchable Polymer Nanocomposite Electrode for Supercapacitors
Journal
ACS Applied Energy Materials
Journal Volume
4
Journal Issue
3
Pages
2266-2274
Date Issued
2021
Author(s)
Abstract
We demonstrate a transparent stretchable supercapacitor based on a nanocomposite electrode consisting of silver nanowires (AgNWs) and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) modified with ethylene glycol. The addition of ethylene glycol (EG) in the PEDOT:PSS solution can dramatically enhance the conductivity of the polymer film. Furthermore, the solvent treatment induces the reorganization of the polymer chains, leading to better distribution of PEDOT:PSS on the AgNW network. With the EG-enhanced AgNWs/PEDOT:PSS electrode, an 87% transmittance of the nanocomposite electrode can be achieved at a wavelength of 550 nm and a pseudo capacitance of 113 ± 18 F/g (areal capacitance = 2.83 ± 0.46 mF cm-2) can be achieved at a scan rate of 10 mV/s. When it was stretched with a tensile strain of 40%, the capacitance of the transparent supercapacitor even increased, owing to closer electrode contact. This work provides a facile way to produce highly transparent and stretchable electrodes using EG-enhanced nanocomposite for a stretchable portable power source of transparent electronics. ?
Subjects
Aliphatic compounds; Capacitance; Conducting polymers; Ethylene; Ethylene glycol; Mobile power plants; Nanocomposites; Polymer films; Polyols; Semiconducting films; Silver nanowires; Supercapacitor; Tensile strain; Nanocomposite electrodes; Poly(styrene sulfonate); Poly-3 ,4-ethylenedioxythiophene; Polymer nanocomposite; Portable power sources; Pseudo capacitances; Stretchable electrodes; Transparent electronics; Transparent electrodes
Type
journal article