Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States.
Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States.
J Am Chem Soc. 2023 Feb 15;145(6):3706-3715. doi: 10.1021/jacs.2c13051. Epub 2023 Feb 6.
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 ( > 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.
透明导体（TCs）在显示器、太阳能电池和新兴的印刷电子产品中起着至关重要的作用。在这里，我们报告了一种在空气中通过铜催化级联反应可制备的 n 型掺杂有机导体，该反应涉及氧化聚合和一锅还原掺杂。形成的聚合物油墨在 20 天内具有良好的储存稳定性，并且可以耐受从-20°C 到 65°C 的储存温度。优化后的 n 型掺杂薄膜 TC 的方阻低至 45 Ω/sq，透光率（>80%）高，可与氧化铟锡相媲美。透明有机导体在加速耐候性测试（85°C/85%RH）下表现出优异的耐久性。此外，n 型掺杂聚合物薄膜还可用作电极材料，具有高体积容量。当它与 p 型掺杂 PEDOT:PSS 配对时，在双聚合物电致变色器件中获得了创纪录的高着色效率。
