Imperial College London
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ProfessorJohannesLischner

Faculty of Engineering, Department of Materials

Professor of Theory and Simulation of Materials
 
 
 
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Contact

 

+44 (0)20 7594 9949j.lischner

 
 
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Location

 

342Bessemer BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Tsai:2020:10.1038/s41928-020-00479-4,
author = {Tsai, H-Z and Lischner, J and Omrani, AA and Liou, F and Aikawa, AS and Karrasch, C and Wickenburg, S and Riss, A and Natividad, KC and Chen, J and Choi, W-W and Watanabe, K and Taniguchi, T and Su, C and Louie, SG and Zettl, A and Lu, J and Crommie, MF},
doi = {10.1038/s41928-020-00479-4},
journal = {Nature Electronics},
pages = {598--603},
title = {A molecular shift register made using tunable charge patterns in one-dimensional molecular arrays on graphene},
url = {http://dx.doi.org/10.1038/s41928-020-00479-4},
volume = {3},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The ability to tune the electronic properties of molecular arrays is an important step in the development of molecule-scale electronic devices. However, control over internal device charge distributions by tuning interactions between molecules has proved challenging. Here, we show that gate-tunable charge patterning can occur in one-dimensional molecular arrays on graphene field-effect transistors. One-dimensional molecular arrays are fabricated using an edge-templated self-assembly process that allows organic molecules (F4TCNQ) to be precisely positioned on graphene devices. The charge configurations of the molecular arrays can be reversibly switched between different collective charge states by tuning the graphene Fermi level via a back-gate electrode. Charge pinning at the ends of the molecular arrays allows the charge state of the entire array to be controlled by adding or removing an edge molecule and changing the total number of molecules in an array between odd and even integers. Charge patterns altered in this way propagate down the array in a cascade effect, allowing the array to function as a charge-based molecular shift register. An extended multi-site Anderson impurity model is used to quantitatively explain this behaviour.
AU  - Tsai,H-Z
AU  - Lischner,J
AU  - Omrani,AA
AU  - Liou,F
AU  - Aikawa,AS
AU  - Karrasch,C
AU  - Wickenburg,S
AU  - Riss,A
AU  - Natividad,KC
AU  - Chen,J
AU  - Choi,W-W
AU  - Watanabe,K
AU  - Taniguchi,T
AU  - Su,C
AU  - Louie,SG
AU  - Zettl,A
AU  - Lu,J
AU  - Crommie,MF
DO  - 10.1038/s41928-020-00479-4
EP  - 603
PY  - 2020///
SN  - 2520-1131
SP  - 598
TI  - A molecular shift register made using tunable charge patterns in one-dimensional molecular arrays on graphene
T2  - Nature Electronics
UR  - http://dx.doi.org/10.1038/s41928-020-00479-4
UR  - https://www.nature.com/articles/s41928-020-00479-4#citeas
UR  - http://hdl.handle.net/10044/1/83305
VL  - 3
ER  -
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