442034 Slot Die Coating of Electroactive PEDOT:PSS Films for Use in Electrochromic Devices

Monday, November 9, 2015
Exhibit Hall 1 (Salt Palace Convention Center)
Gavin J. Donley, Engineering, Hope College, Holland, MI, Ara Parsekian, Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA and Tequila Harris, Georgia Institute of Technology, Atlanta, GA

The field of polymer-based, flexible organic electronics is rapidly growing due to their substantial advantages over more conventional ITO based electronic devices. This study looked at the feasibility of manufacturing electrochromic devices from the conductive polymer PEDOT:PSS when coated on a flexible PET substrate. Slot die coating and spray coating were used for the film production, under different process conditions with different coating formulations. Defect modes specific to the slot die setup were observed. The films were analyzed to determine sheet resistance, transmittance, and electrochemical properties. Films with a resistance as low as 100-200 Ω were produced and electrochemical switching of electrochromic polymers coated on the PEDOT:PSS layer was successful.

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