2D self-assembly and electronic characterization of oxygen–boron–oxygen-doped chiral graphene nanoribbons. Issue 49 (25th May 2021)

• Record Type: Journal Article
• Authors: Jin, Lei; Bilbao, Nerea; Lv, Yang; Wang, Xiao-Ye; Soltani, Paniz; Mali, Kunal S.; Narita, Akimitsu; De Feyter, Steven; Müllen, Klaus; Chen, Zongping
• Is Part Of: Chemical communications. Volume 57:Issue 49(2021)
• Page Start: 6031
• Page End: 6034
• Publication Date: 2021-05-25
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d1cc01901e
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Chemical vapor deposition synthesis of atomically precise oxygen–boron–oxygen-doped chiral graphene nanoribbons and their well-organized 2D self-assembly. Abstract : Graphene nanoribbons (GNRs), quasi-one-dimensional strips of graphene, exhibit a nonzero bandgap due to quantum confinement and edge effects. In the past decade, different types of GNRs with atomically precise structures have been synthesized by a bottom-up approach and have attracted attention as a novel class of semiconducting materials for applications in electronics and optoelectronics. We report the large-scale, inexpensive growth of high-quality oxygen–boron–oxygen-doped chiral GNRs with a defined structure using chemical vapor deposition. For the first time, a regular 2D self-assembly of such GNRs has been demonstrated, which results in a unique orthogonal network of GNRs. Stable and large-area GNR films with an optical bandgap of ∼1.9 eV were successfully transferred onto insulating substrates. This ordered network structure of semiconducting GNRs holds promise for controlled device integration.