Tracking On-Surface Chemistry with Atomic Precision

Jacobse, Peter H.; Moret, Marc‐Etienne; Gebbink, Robertus J. M. Klein; Swart, Ingmar

doi:10.1055/s-0036-1590867

Cited by 8 publications

(9 citation statements)

References 72 publications

(93 reference statements)

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“…In this article, we summarize the latest developments and updates, mainly focusing on the field of on‐surface synthesis of GNRs. In view of the dynamics of the field, readers are referred to previous review articles published by us [ 11,12,25,26,49–51 ] and others [ 10,52–56 ] for a detailed description of the preceding works. Here, we start with the recent progress in the surface‐assisted synthesis of GNRs under UHV and CVD conditions.…”

Section: Introductionmentioning

confidence: 99%

Graphene Nanoribbons: On‐Surface Synthesis and Integration into Electronic Devices

2020

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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.

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Section: Introductionmentioning

confidence: 99%

Graphene Nanoribbons: On‐Surface Synthesis and Integration into Electronic Devices

2020

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“…We also discuss the future challenges and perspectives. Readers are advised to refer to previous review articles by others30,68,69 and by ourselves22,39,42,70–73 for more comprehensive descriptions of previous works in the field.…”

Section: Introductionmentioning

confidence: 99%

Solution and on-surface synthesis of structurally defined graphene nanoribbons as a new family of semiconductors

et al. 2019

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“…Although scanning tunneling microscopy (STM) and noncontact atomic force microscopy (nc-AFM) imaging allow the identification of reaction products and intermediates, these techniques lack the ability to monitor chemical transformations at annealing temperatures. 52,53 Recent studies have used X-ray photoelectron spectroscopy (XPS) to reveal activation temperatures of various elementary reaction steps in on-surface transformations. 11,54−57 Scanning probe microscopy (SPM) and XPS can therefore be regarded as a complementary set of techniques to monitor the on-surface chemistry of molecular species: together, they provide a comprehensive understanding of the underlying processes.…”

Section: Introductionmentioning

confidence: 99%

One Precursor but Two Types of Graphene Nanoribbons: On-Surface Transformations of 10,10′-Dichloro-9,9′-bianthryl on Ag(111)

et al. 2019

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On-surface synthesis has emerged in the last decade as a method to create graphene nanoribbons (GNRs) with atomic precision. The underlying premise of this bottom-up strategy is that precursor molecules undergo a well-defined sequence of inter- and intramolecular reactions, leading to the formation of a single product. As such, the structure of the GNR is encoded in the precursors. However, recent examples have shown that not only the molecule, but also the coinage metal surface on which the reaction takes place, plays a decisive role in dictating the nanoribbon structure. In this work, we use scanning probe microscopy and X-ray photoelectron spectroscopy to investigate the behavior of 10,10′-dichloro-9,9′-bianthryl (DCBA) on Ag(111). Our study shows that Ag(111) can induce the formation of both seven-atom wide armchair GNRs (7-acGNRs) and 3,1-chiral GNRs (3,1-cGNRs), demonstrating that a single molecule on a single surface can react to different nanoribbon products. We additionally show that coadsorbed dibromoperylene can promote surface-assisted dehydrogenative coupling in DCBA, leading to the exclusive formation of 3,1-cGNRs.

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Tracking On-Surface Chemistry with Atomic Precision

Cited by 8 publications

References 72 publications

Graphene Nanoribbons: On‐Surface Synthesis and Integration into Electronic Devices

Graphene Nanoribbons: On‐Surface Synthesis and Integration into Electronic Devices

Solution and on-surface synthesis of structurally defined graphene nanoribbons as a new family of semiconductors

One Precursor but Two Types of Graphene Nanoribbons: On-Surface Transformations of 10,10′-Dichloro-9,9′-bianthryl on Ag(111)

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