Hydrophenazine-linked two-dimensional ladder-type crystalline fused aromatic network with high charge transport
- 저자
- Hyuk-Jun Noh, Sein Chung, Mahmut Sait Okyay, Yoon-Kwang Im, Seong-Wook Kim, Do-Hyung Kweon, Jong-Pil Jeon, Jeong-Min Seo, Na-Hyun Kim, Soo-Young Yu, Youjin Reo, Yong-Young Noh, Boseok Kang, Noejung Park, Javeed Mahmood,* Kilwon Cho* and Jong-Beom Baek
- 저널명
- Chem, 8, 11, 3130-3144 (2022)
- 년도
- 2022
- Link
- https://doi.org/10.1016/j.chempr.2022.08.001 585회 연결
[Abstract]
The zero band gap of graphene has been a critical roadblock for organic electronic devices. Hence, the development of promising semiconducting 2D organic materials has been extensively explored for the past few decades. 2D polymers (2DPs) with unique electronic features have emerged as a significant alternative to holey graphene. Here, we employed an irreversible ladderization reaction into a 2DP, realizing a laterally extended ladder-type fused aromatic network (HP-FAN). The ladder-type fused aromatic structures endow the HP-FAN with extended delocalized π-molecular orbitals, facilitating fast intra-chain charge transport. Consequently, the HP-FAN exhibits a semiconducting band gap with a unique flat band. In addition, the HP-FAN thin flakes, isolated by polydimethylsiloxane stamping, demonstrate remarkable performances as electronic devices with high charge carrier transport. Overall, these findings provide a significant leap in the design and further advance in semiconducting 2D polymers.