All-Printed Multilayers and Blends of Poly(dioxythiophene) Derivatives Patterned into Flexible Electrochromic Displays
Journal article, 2023

Low-cost, flexible and thin display technology is becoming an interesting field of research as it can accompany the wide range of sensors being developed. Here, the synthesis of poly(dimethylpropylene-dioxythiophene) (PProDOT-Me-2) by combining vapor phase polymerization and screen printing is presented. A multilayer architecture using poly(3,4-ethylenedioxythiophene) (PEDOT) and PProDOT-Me-2 to allow for electrochromic switching of PProDOT-Me-2, thereby eliminating the need for a supporting transparent conductive (metal oxide) layer is introduced. Furthermore, the technology is adapted to a blended architecture, which removes the additional processing steps and results in improved color contrast ( increment E* > 25). This blend architecture is extended to other conductive polymers, such as PEDOT and polypyrrole (PPy), to highlight the ability of the technique to adjust the color of all-printed electrochromic displays. As a result, a green color is obtained when combining the blue and yellow states of PEDOT and PPy, respectively. This technology has the potential to pave the way for all-printed multicolored electrochromic displays for further utilization in printed electronic systems in various Internet of Things applications.

PProDOT-Me-2

electrochromic displays

vapor phase polymerization

screen printing

PEDOT

Author

Robert Brooke

RISE Research Institutes of Sweden

Ioannis Petsagkourakis

RISE Research Institutes of Sweden

Subimal Majee

RISE Research Institutes of Sweden

Oliver Olsson

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Andreas Dahlin

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Peter Andersson Ersman

RISE Research Institutes of Sweden

Macromolecular Materials and Engineering

1438-7492 (ISSN) 1439-2054 (eISSN)

Vol. 308 2 2200453

Subject Categories

Materials Chemistry

Media Engineering

Embedded Systems

DOI

10.1002/mame.202200453

More information

Latest update

3/15/2023