Porous Organic Polymer Films with Tunable Work Functions and Selective Hole and Electron Flows for Energy Conversions |
| |
| Authors: | Dr Cheng Gu Ning Huang Youchun Chen Huanhuan Zhang Shitong Zhang Prof Fenghong Li Prof Yuguang Ma Prof Dr Donglin Jiang |
| |
| Institution: | 1. Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, Japan;2. State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P.R. China;3. State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou, P.R. China;4. Academic Field of Energy and Environment, School of Materials Science, Japan Advanced Institute of Science and Technology, Nomi, Japan |
| |
| Abstract: | Organic optoelectronics are promising technologies for energy conversion. However, the electrode interlayer, a key material between active layers and conducting electrodes that controls the transport of charge carriers in and out of devices, is still a chemical challenge. Herein, we report a class of porous organic polymers with tunable work function as hole‐ and electron‐selective electrode interlayers. The network with organoborane and carbazole units exhibits extremely low work‐function‐selective electron flow; while upon ionic ligation and electro‐oxidation, the network significantly increases the work function and turns into hole conduction. We demonstrate their outstanding functions as anode and cathode interlayers in energy‐converting solar cells and light‐emitting diodes. |
| |
| Keywords: | electrode interlayers energy conversion devices porous organic polymers thin films work function |
|
|
