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Unidirectional Real-Time Photoswitching of Diarylethene Molecular Monolayer Junctions with Multilayer Graphene Electrodes

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2019

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Koo, Jeongmin
Jang, Yeonsik
Jeong, Hyunhak
Kang, Kehoon
Lee, Woocheol
Kim, Junwoo
Hwang, Wang-Taek
Xiang, Dong
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https://doi.org/10.1021/acsami.8b19372
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Chemie: Publikationen
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ACS applied materials & interfaces. 2019, 11(12), pp. 11645-11653. ISSN 1944-8244. eISSN 1944-8252. Available under: doi: 10.1021/acsami.8b19372

Zusammenfassung

We fabricate and characterize vertical molecular junctions consisting of self-assembled monolayers (SAMs) of diarylethene (DAE) contacted by a multilayer graphene (MLG) electrode on the top and gold on the bottom. The DAE molecular junctions show two stable electrical states, a closed state (high conductance) or an open state (low conductance), which are created upon illumination with UV or visible light, respectively. For the Au-DAE-MLG junction structure, we observe that the current levels between the two conductance states are separated by two orders of magnitude. However, in a real-time measurement, we observe only unidirectional switching behavior from the open to the closed state.

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530 Physik

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molecular electronics, photoswitching, diarylethene, self-assembled monolayer, graphene electrode

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ISO 690KOO, Jeongmin, Yeonsik JANG, León MARTIN, Dongku KIM, Hyunhak JEONG, Kehoon KANG, Woocheol LEE, Junwoo KIM, Wang-Taek HWANG, Dong XIANG, Elke SCHEER, Mikhail KABDULOV, Thomas HUHN, Fabian PAULY, Takhee LEE, 2019. Unidirectional Real-Time Photoswitching of Diarylethene Molecular Monolayer Junctions with Multilayer Graphene Electrodes. In: ACS applied materials & interfaces. 2019, 11(12), pp. 11645-11653. ISSN 1944-8244. eISSN 1944-8252. Available under: doi: 10.1021/acsami.8b19372
BibTex
@article{Koo2019-03-27Unidi-45546,
  year={2019},
  doi={10.1021/acsami.8b19372},
  title={Unidirectional Real-Time Photoswitching of Diarylethene Molecular Monolayer Junctions with Multilayer Graphene Electrodes},
  number={12},
  volume={11},
  issn={1944-8244},
  journal={ACS applied materials & interfaces},
  pages={11645--11653},
  author={Koo, Jeongmin and Jang, Yeonsik and Martin, León and Kim, Dongku and Jeong, Hyunhak and Kang, Kehoon and Lee, Woocheol and Kim, Junwoo and Hwang, Wang-Taek and Xiang, Dong and Scheer, Elke and Kabdulov, Mikhail and Huhn, Thomas and Pauly, Fabian and Lee, Takhee}
}
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