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Silver Makes Better Electrical Contacts to Thiol‐Terminated Silanes than Gold

Overview of attention for article published in Angewandte Chemie. International Edition, October 2017
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Title
Silver Makes Better Electrical Contacts to Thiol‐Terminated Silanes than Gold
Published in
Angewandte Chemie. International Edition, October 2017
DOI 10.1002/anie.201708524
Pubmed ID
Authors

Haixing Li, Timothy A. Su, María Camarasa‐Gómez, Daniel Hernangómez‐Pérez, Simon E. Henn, Vladislav Pokorný, Caravaggio D. Caniglia, Michael S. Inkpen, Richard Korytár, Michael L. Steigerwald, Colin Nuckolls, Ferdinand Evers, Latha Venkataraman

Abstract

We report that the single molecule junction conductance of thiol-terminated silanes with Ag electrodes are higher than the conductance of those formed with Au electrodes. These results are in contrast to the trends in the metal work function Φ(Ag) < Φ(Au). As such, one would expect a better alignment of the Au Fermi level to the molecular orbital of silane that mediates charge transport. Additionally, this conductance trend is reversed when we replace the thiols with amines, highlighting the impact of metal-S covalent and metal-NH2 dative bonds in controlling the molecular conductance. Density functional theory calculations elucidate the crucial role of the chemical linkers in determining the level alignment when molecules are attached to different metal contacts. We also demonstrate that conductance of thiol terminated silanes with Pt electrodes is lower than the ones formed with Au and Ag electrodes again in contrast to what one would expect from trends in the metal work-functions.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 33 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 33 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 10 30%
Student > Ph. D. Student 10 30%
Student > Bachelor 3 9%
Student > Master 2 6%
Lecturer 1 3%
Other 3 9%
Unknown 4 12%
Readers by discipline Count As %
Chemistry 15 45%
Physics and Astronomy 8 24%
Materials Science 3 9%
Earth and Planetary Sciences 1 3%
Philosophy 1 3%
Other 1 3%
Unknown 4 12%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 06 October 2017.
All research outputs
#15,972,232
of 25,711,518 outputs
Outputs from Angewandte Chemie. International Edition
#34,765
of 50,624 outputs
Outputs of similar age
#183,234
of 333,166 outputs
Outputs of similar age from Angewandte Chemie. International Edition
#553
of 764 outputs
Altmetric has tracked 25,711,518 research outputs across all sources so far. This one is in the 36th percentile – i.e., 36% of other outputs scored the same or lower than it.
So far Altmetric has tracked 50,624 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 7.7. This one is in the 29th percentile – i.e., 29% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 333,166 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 43rd percentile – i.e., 43% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 764 others from the same source and published within six weeks on either side of this one. This one is in the 26th percentile – i.e., 26% of its contemporaries scored the same or lower than it.