논문초록
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Due to their low-temperature solution processability, compatibility with large-area deposition techniques, intrinsic robust mechanical properties and excellent light-emitting properties, organic polymer semiconductors possess great potential as functional thin-film devices, such as field effect transistors, thermoelectric energy conversion devices and light-emitting devices. However, in most functional devices, fine tuning of carrier concentration is key technique and, still, it is very difficult for organic polymer films to control their carrier density precisely. Here, we applied electrochemical doping techniques into organic polymer films and realized unique functionalities, i) insulator-to-metal transition induced by electrochemical doping, ii) electrochemically optimized thermoelectric energy conversion efficiency in organic polymer films and iii) highly functionalized light-emitting electrochemical cells based on organic polymers. |