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

Jeongmin Koo; Yeonsik Jang; León Martin; Dongku Kim; Hyunhak Jeong; Keehoon Kang; Woocheol Lee; Junwoo Kim; Wang Taek Hwang; Dong Xiang; Elke Scheer; Mikhail Kabdulov; Thomas Huhn; Fabian Pauly; Takhee Lee

doi:10.1021/acsami.8b19372

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

Jeongmin Koo, Yeonsik Jang, León Martin, Dongku Kim, Hyunhak Jeong, Keehoon Kang, Woocheol Lee, Junwoo Kim, Wang Taek Hwang, Dong Xiang, Elke Scheer, Mikhail Kabdulov, Thomas Huhn, Fabian Pauly, Takhee Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

We fabricate and characterize vertical molecular junctions consisting of self-assembled monolayers 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 2 orders of magnitude. However, in a real-time measurement, we observe only unidirectional switching behavior from the open to the closed state.

Original language	English
Pages (from-to)	11645-11653
Number of pages	9
Journal	ACS Applied Materials and Interfaces
Volume	11
Issue number	12
DOIs	https://doi.org/10.1021/acsami.8b19372
Publication status	Published - 2019 Mar 27

Bibliographical note

Funding Information:
The authors appreciate financial support from the National Creative Research Laboratory program (grant no. 2012026372) through the National Research Foundation of Korea funded by the Korean Ministry of Science and ICT. L.M., M.K., T.H., E.S., and F.P. gratefully acknowledge funding through the Collaborative Research Center (SFB) 767 of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation). Part of the numerical modeling was performed using the computational resources of the bwHPC program, namely the bwUniCluster and the JUSTUS HPC facility.

Publisher Copyright:
© 2019 American Chemical Society.

All Science Journal Classification (ASJC) codes

Materials Science(all)

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10.1021/acsami.8b19372

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Koo, J., Jang, Y., Martin, L., Kim, D., Jeong, H., Kang, K., Lee, W., Kim, J., Hwang, W. T., Xiang, D., Scheer, E., Kabdulov, M., Huhn, T., Pauly, F., & Lee, T. (2019). Unidirectional Real-Time Photoswitching of Diarylethene Molecular Monolayer Junctions with Multilayer Graphene Electrodes. ACS Applied Materials and Interfaces, 11(12), 11645-11653. https://doi.org/10.1021/acsami.8b19372

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title = "Unidirectional Real-Time Photoswitching of Diarylethene Molecular Monolayer Junctions with Multilayer Graphene Electrodes",

abstract = "We fabricate and characterize vertical molecular junctions consisting of self-assembled monolayers 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 2 orders of magnitude. However, in a real-time measurement, we observe only unidirectional switching behavior from the open to the closed state.",

author = "Jeongmin Koo and Yeonsik Jang and Le{\'o}n Martin and Dongku Kim and Hyunhak Jeong and Keehoon Kang and Woocheol Lee and Junwoo Kim and Hwang, {Wang Taek} and Dong Xiang and Elke Scheer and Mikhail Kabdulov and Thomas Huhn and Fabian Pauly and Takhee Lee",

note = "Funding Information: The authors appreciate financial support from the National Creative Research Laboratory program (grant no. 2012026372) through the National Research Foundation of Korea funded by the Korean Ministry of Science and ICT. L.M., M.K., T.H., E.S., and F.P. gratefully acknowledge funding through the Collaborative Research Center (SFB) 767 of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation). Part of the numerical modeling was performed using the computational resources of the bwHPC program, namely the bwUniCluster and the JUSTUS HPC facility. Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

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Koo, J, Jang, Y, Martin, L, Kim, D, Jeong, H, Kang, K, Lee, W, Kim, J, Hwang, WT, Xiang, D, Scheer, E, Kabdulov, M, Huhn, T, Pauly, F & Lee, T 2019, 'Unidirectional Real-Time Photoswitching of Diarylethene Molecular Monolayer Junctions with Multilayer Graphene Electrodes', ACS Applied Materials and Interfaces, vol. 11, no. 12, pp. 11645-11653. https://doi.org/10.1021/acsami.8b19372

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AU - Koo, Jeongmin

AU - Jang, Yeonsik

AU - Martin, León

AU - Kim, Dongku

AU - Jeong, Hyunhak

AU - Kang, Keehoon

AU - Lee, Woocheol

AU - Kim, Junwoo

AU - Hwang, Wang Taek

AU - Xiang, Dong

AU - Scheer, Elke

AU - Kabdulov, Mikhail

AU - Huhn, Thomas

AU - Pauly, Fabian

AU - Lee, Takhee

N1 - Funding Information: The authors appreciate financial support from the National Creative Research Laboratory program (grant no. 2012026372) through the National Research Foundation of Korea funded by the Korean Ministry of Science and ICT. L.M., M.K., T.H., E.S., and F.P. gratefully acknowledge funding through the Collaborative Research Center (SFB) 767 of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation). Part of the numerical modeling was performed using the computational resources of the bwHPC program, namely the bwUniCluster and the JUSTUS HPC facility. Publisher Copyright: © 2019 American Chemical Society.

PY - 2019/3/27

Y1 - 2019/3/27

N2 - We fabricate and characterize vertical molecular junctions consisting of self-assembled monolayers 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 2 orders of magnitude. However, in a real-time measurement, we observe only unidirectional switching behavior from the open to the closed state.

AB - We fabricate and characterize vertical molecular junctions consisting of self-assembled monolayers 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 2 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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JF - ACS applied materials & interfaces

IS - 12

ER -

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

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