Abstract
Development of conductive polymer ink formulations with reliable jetting stability and physical properties could offer sustainable routes for scaling-up the 3D-printing of electronics. We report a new poly(3,4-ethylenedioxythiophene) polystyrene sulphonate (PEDOT:PSS) ink formulation, InkCG, using bio-renewable solvents dihydrolevoglucosenone (cyrene) and glycerol carbonate (GC) as an alternative to commonly used dimethyl sulfoxide (DMSO). These green organic co-solvents enhance jetting reliability and long-term stability of the ink and improve electrical properties of the deposited PEDOT:PSS layers, compared to the commonly used DMSO-containing ink formulations. We achieve large-area and high-fidelity electronic devices (array of 140 devices) with reproducible electrical performance through inkjet-based 3D printing. Enhanced performance stability is observed under cyclic bending, thermal annealing, UV or IR exposure, offering exciting opportunities for sustainable deposition of PEDOT:PSS for large-area 3D printing and its exploitation in heterostructures and flexible electronics.
| Original language | English |
|---|---|
| Article number | 103452 |
| Journal | Additive Manufacturing |
| Volume | 66 |
| DOIs | |
| Publication status | Published - 25 Mar 2023 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
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SDG 9 Industry, Innovation, and Infrastructure
Free Keywords
- Conductive polymers
- Heterostructures
- Inkjet printing
- Large scale array
- PEDOT:PSS
ASJC Scopus subject areas
- Biomedical Engineering
- General Materials Science
- Engineering (miscellaneous)
- Industrial and Manufacturing Engineering
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