3D printing of solvent-treated PEDOT:PSS inks for electromagnetic interference shielding

Abstract

3D printing of conducting polymers has been achieved very recently by direct ink writing of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)-based inks. This field is in its infancy, calling for further research to...

Recent Progress in Poly (3,4‐Ethylene Dioxythiophene): Polystyrene Sulfonate Based Composite Materials for Electromagnetic Interference Shielding

“…The EMI Shielding performance was further evaluated after an interval of 30 days and the value remained same indicating that PEDOT: PSS -PEO-PVA blend had high stability. [80] Ghaderi et al [148] prepared EMI shields in X-band through 3D printing of solvent-treated PEDOT:PSS inks via molecular engineering by co-solvent doping or solvent post-treatment with Figure 8. Schematic illustration of the procedure for preparing PMIA/Ag NWs/PEDOT: PSS nonwoven fabric.…”

“…Ghaderi et al. [ 148 ] prepared EMI shields in X‐band through 3D printing of solvent‐treated PEDOT:PSS inks via molecular engineering by co‐solvent doping or solvent post‐treatment with DMSO, EG, DMF, methanol and ethanol. It was found that on doping or post treatment, EMI shielding property got improved due to increased electrical conductivity as compared to the pristine PEDOT: PSS.…”

“…PEDOT: PSS-PVP/CNF Composite [ 82] 1.09 S cm −1 0.06 mm 8-26.5 GHz 44 50 PEDOT: PSS-PVP/CNF-PDMS Composite [ 82] 0.6 mm 8-26.5 GHz 44 51 Bismuth Telluride nanorods/ PEDOT: PSS [167] 106.7 S cm −1 8.2-12 GHz 42 52 PEDOT/wood composite [ 146] 112.8 S m −1 2 mm 8.2-12.4 GHz 46.2 53 3D printed PEDOT:PSS [ 148] 858 S cm or mechanical mixing, to disperse the MXene particles evenly within the composite material.…”

Flexible CNT-MXene-CNT Film with Low Surface Conductance for High- and Low-Power Electromagnetic Absorption Protection

“…Until now, mainstream EMI shielding materials include intrinsic conductive polymers (polypyrrole, polyaniline, and polythiophene), carbon-based materials (CNTs, graphene, , rGO, − and carbon black), metallic nanomaterials (copper nanofilm, silver nanowires, , and silver nanoparticles), and two-dimensional (2D) transition metal carbides and/or nitrides (MXene). , However, whatever the compositions are, compact shielding materials with higher electromagnetic loss are usually accompanied by higher electrical conductivity. , The inherent high electrical conductivity leads to intense electromagnetic reflection, especially for millimeter and submillimeter waves, at the surface of the material. Once the reflected waves return to the environment, intense secondary radiation is generated, which causes more serious EM pollution and environmental problems.…”

“…12 The thermal and nonthermal effects of high-power THz waves and water may cause thermal damage to cells, destroy the repair mechanism of cells, even induce cell death, and greatly increase the probability of canceration. 13 Until now, mainstream EMI shielding materials include intrinsic conductive polymers (polypyrrole, 15 polyaniline, 16 and polythiophene 17 ), carbon-based materials (CNTs, 18 graphene, 19,20 rGO, 20−22 and carbon black 23 ), metallic nanomaterials (copper nanofilm, 24 silver nanowires, 25,26 and silver nanoparticles 27 ), and two-dimensional (2D) transition metal carbides and/or nitrides (MXene). 28,29 However, whatever the compositions are, compact shielding materials with higher electromagnetic loss are usually accompanied by higher electrical conductivity.…”