After the emergence of graphene in the material science field, top-down and bottom-up studies to develop semiconducting organic materials with layered structures became highly active. However, most of them have suffered from poor processability, which hampers device fabrication and frustrates practical applications. Here, we suggest an unconventional approach to fabricating semiconducting devices, which avoids the processability issue. We designed a soluble amorphous network using a solution process to form a thin film on a substrate. We then employed heat treatment to develop a flattened organic structure in the thin film, as an active layer for organic thin-film transistors (TFTs). The fabricated TFTs showed good performance in both horizontal and vertical charge transport, suggesting a versatile and useful approach for the development of organic semiconductors.
Bibliographical noteFunding Information:
This research was supported by the Creative Research Initiative (CRI, 2014R1A3A2069102), the Science Research Center (SRC, 2016R1A5A1009405), the Young Researcher (2019R1C1C1006650), the Basic Science Research (2018R1D1A1A02046918), the U-K Brand project (1.200096.01) of UNIST, and 2020R1A2C3004477 and 20R1C1C100700113 through the National Research Foundation (NRF) of Republic of Korea. Portions of this research were carried out at the 3C, 4D, 9A, and 10A2 beam lines of the Pohang Accelerator Laboratory, Republic of Korea.
© 2022 American Chemical Society.
- organic electronics
- thin-film transistors
ASJC Scopus subject areas
- Materials Science(all)