Graphene Nanoribbons: On‐Surface Synthesis and Integration into Electronic Devices
Abstract
Graphene nanoribbons (GNRs) are quasi‐1D graphene strips, which have attracted attention as a novel class of semiconducting materials for various applications in electronics and optoelectronics. GNRs exhibit unique electronic and optical properties, which sensitively depend on their chemical structures, especially the width and edge configuration. Therefore, precision synthesis of GNRs with chemically defined structures is crucial for their fundamental studies as well as device applications. In contrast to top‐down methods, bottom‐up chemical synthesis using tailor‐made molecular precursors can achieve atomically precise GNRs. Here, the synthesis of GNRs on metal surfaces under ultrahigh vacuum (UHV) and chemical vapor deposition (CVD) conditions is the main focus, and the recent progress in the field is summarized. The UHV method leads to successful unambiguous visualization of atomically precise structures of various GNRs with different edge configurations. The CVD protocol, in contrast, achieves simpler and industry‐viable fabrication of GNRs, allowing for the scale up and efficient integration of the as‐grown GNRs into devices. The recent updates in device studies are also addressed using GNRs synthesized by both the UHV method and CVD, mainly for transistor applications. Furthermore, views on the next steps and challenges in the field of on‐surface synthesized GNRs are provided.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 18, 2020
- Source ID
- 10.1002/adma.202001893
Entities
People
- Akimitsu Narita
- Klaus Müllen
- Zongping Chen
Organizations
- European Research Council
- Max Planck Institute for Polymer Research
- Max Planck Society
- National Natural Science Foundation of China
- Office of Naval Research
- Okinawa Institute of Science and Technology
- University of Cologne
- Zhejiang University