Electrochromic Displays Manufactured by a Combination of Vapor Phase Polymerization and Screen Printing
2022 (English)In: Advanced Materials Technologies, E-ISSN 2365-709X, Vol. 7, no 8, article id 2200054Article in journal (Refereed) Published
Abstract [en]
Smart label technology such as indicators is a growing field due to society's demand for Internet of Things devices. New materials and technologies are continuously being discovered and developed in order to provide better resolution, better performance, or more environmentally friendly devices. Within this report, screen printing technology is combined with vapor phase polymerization to synthesize three conductive polymers; poly(3,4-ethylenedioxythiophene) (PEDOT), polypyrrole (PPy), and polythiophene (PTh). The conductive polymers are created in micrometer resolution and investigated for their electrochromic properties. PEDOT and PPy samples are combined into printed, laminated, transmissive electrochromic displays. The technology is further advanced to establish separate PEDOT, PPy, and PTh all-printed electrochromic displays using several screen printed layers. The PEDOT displays show improved color retention as compared to displays created with commercially available PEDOT:poly(styrene sulfonate) (PSS) with comparable contrast and switching behavior. All-printed PPy and PTh electrochromic displays with impressive electrochromic behavior are demonstrated. More complex patterns of 7-segment displays are created, thereby highlighting flexibility and individually switched sections of the conductive polymers. This research extends the screen printing and vapor phase polymerization combination to other conductive polymers and the potential commercialization of multicolor electrochromic displays that has been otherwise dominated by monochromatic PEDOT:PSS.
Place, publisher, year, edition, pages
John Wiley & Sons, 2022. Vol. 7, no 8, article id 2200054
Keywords [en]
organic electrochromic displays, PEDOT, PPy, printed electronics, screen printing, smart windows, vapor phase polymerization, Electrochromism, Phosphorus compounds, Polymerization, Polypyrroles, Styrene, (PEDOT), polypyrrole, Conductive Polymer, Electrochromic displays, Ethylenedioxythiophenes, Organic electrochromic display, Organics, Poly(3, 4-ethylenedioxythiophene), Conducting polymers
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-59063DOI: 10.1002/admt.202200054Scopus ID: 2-s2.0-85126551373OAI: oai:DiVA.org:ri-59063DiVA, id: diva2:1653180
Note
Funding details: Stiftelsen för Strategisk Forskning, SSF; Funding text 1: This work was financially supported by the Swedish Foundation for Strategic Research.
2022-04-212022-04-212023-10-31Bibliographically approved