Transparent conductors (TCs) play a vital role in displays, solar cells, and emerging printed electronics. Here, we report a solution-processable n-doped organic conductor from copper-catalyzed cascade reactions in the air, which involves oxidative polymerization and reductive doping in one pot. The formed polymer ink is shelf-stable over 20 days and can endure storage temperatures from -20 to 65 °C. The optimized n-doped thin-film TC exhibits a low sheet resistance of 45 ω/sq and a high transmittance (T550 > 80%), which can rival indium tin oxide. The transparent organic conductor exhibits excellent durability under accelerated weathering tests (85 °C/85% RH). Furthermore, the n-doped polymer film can also function as an electrode material with a high volumetric capacity. When it is paired with p-doped PEDOT:PSS, a record-high coloration efficiency is obtained in a dual-polymer electrochromic device.
|Number of pages||10|
|Journal||Journal of the American Chemical Society|
|State||Published - Feb 15 2023|
Bibliographical noteFunding Information:
Z.K. was supported by the Office of Naval Research (N00014-22-1-2177, Program Manager: Dr. Paul Armistead). A.A., J.H., K.C., and I.S. were supported by Ambilight under research contract. K.P. and J.C. were supported by Multidisciplinary University Research Initiative (N00014-21-1-2476, Program Manager: Dr. Chad Stoltz).
© 2023 American Chemical Society.
ASJC Scopus subject areas
- Chemistry (all)
- Colloid and Surface Chemistry