About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
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Advances in Emerging Electronic Nanomaterials: Synthesis, Enhanced Properties, Integration, and Applications
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Presentation Title |
Synthesis of Atomically Precise Graphene Nanoribbons with Tunable Electronic Properties |
Author(s) |
An-Ping Li |
On-Site Speaker (Planned) |
An-Ping Li |
Abstract Scope |
Atomically precise graphene nanoribbons (GNRs) can be synthesized bottom-up using controlled on-surface chemical reactions from rationally designed molecular precursors. The on-surface reactions of molecular precursors performed under ultra-high vacuum conditions can further be combined with scanning tunneling microscopy (STM) for in situ characterization of atomic, electronic, and magnetic properties. In this talk, I will discuss how we realize novel GNR heterostructures at atomic precision. First, a bottom-up approach is developed to couple graphene nanodot covalently at the edges of GNR to create quantum-well-like states for well-defined narrow-band light emission, which highlights a route to deterministic creation of quantum light emitters. Second, atomically precise GNRs are obtained directly on a model metal oxide, showing entangled magnetic states decoupled from the substrate. The work illustrates the versatility of bottom-up approach to synthesis of graphitic quantum electronic materials. |