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Ultrafast near-infrared curing of PEDOT:PSS
Affiliation:1. SPECIFIC – College of Engineering, Swansea University, Baglan Bay Innovation & Knowledge Centre, Central Avenue, Baglan, Port Talbot SA12 7AX, United Kingdom;2. Tata Steel, PV Accelerator, Shotton Works, Deeside CH5 2NH, United Kingdom;1. Polymer Synthesis and Analysis Laboratory, Department of Chemistry, Faculty of Science and Arts, Canakkale Onsekiz Mart University, 17020 Canakkale, Turkey;2. Department of Bioengineering & Materials Science Engineering, Canakkale Onsekiz Mart University, 17020 Canakkale, Turkey;3. Department of Chemical Engineering, Faculty of Engineering, Canakkale Onsekiz Mart University, 17020 Canakkale, Turkey;4. Department of Materials Science & Engineering, Faculty of Engineering, Canakkale Onsekiz Mart University, 17020 Canakkale, Turkey;1. School of Advanced Materials Engineering, Kookmin University, Seoul 136-702, Republic of Korea;2. Department of Chemical Engineering, Hoseo University, Asan 336-795, Republic of Korea;1. Ioffe Institute, 26 Polytechnicheskaya str., 194021 Saint-Petersburg, Russia;2. Institut of Macromolecular Compounds, 31 Bolshoi pr., 199004 Saint-Petersburg, Russia
Abstract:In the printed electronics industry, in order to produce conducting layers of suitably low resistance (<0.015 Ω cm) PEDOT:PSS solutions are attractive as transparent conductors. The wet film is currently heated using conventional convection ovens at temperatures of 120–140 °C for several minutes. Near infrared (NIR) radiation curing is shown to reduce the minimum drying time from 240 s in a conventional oven (giving 0.014 Ω cm) to 2 s (giving 0.011 Ω cm). Here we show it is the NIR absorbance of the PEDOT:PSS itself that gives rise to the rapid curing and this limits the energy density of NIR used.
Keywords:PEDOT  PEDOT:PSS  Near-infrared  Curing  Heating  Conducting polymer
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