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Robust graphene-based molecular devices
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DOI：10.1038/s41565-019-0533-8.png)
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摘要
En 中文
One of the main challenges to upscale the fabrication of molecular devices is to achieve a mechanically stable device with reproducible and controllable electronic features that operates at room temperature(1,2). This is crucial because structural and electronic fluctuations can lead to significant changes in the transport characteristics at the electrode-molecule interface(3,4). In this study, we report on the realization of a mechanically and electronically robust graphene-based molecular junction. Robustness was achieved by separating the requirements for mechanical and electronic stability at the molecular level. Mechanical stability was obtained by anchoring molecules directly to the substrate, rather than to graphene electrodes, using a silanization reaction. Electronic stability was achieved by adjusting the pi-pi orbitals overlap of the conjugated head groups between neighbouring molecules. The molecular devices exhibited stable current-voltage (I-V) characteristics up to bias voltages of 2.0 V with reproducible transport features in the temperature range from 20 to 300 K.
Keyword:
SELF-ASSEMBLED MONOLAYERS
JUNCTIONS
TRANSISTOR
TRANSPORT
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期刊
IF:
34.9
论文数:
4.8K
被引数:
8.1W
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引用论文
Molecular Self-Assembled Monolayers and Multilayers for Organic and Unconventional Inorganic Thin-Film Transistor Applications用于有机和非常规无机薄膜晶体管应用的分子自组装单层和多层.png)
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