A New Route to Nondestructive Top-Contacts for Molecular Electronics on Si: Pb Evaporated on Organic Monolayers

Robert Lovrincic; Olga Kraynis; Lavan, Rotem Har Lavan; Abd-Elrazek Haj-Yahya; Wenjie Li; Ayelet Vilan; David Cahen

doi:10.1021/jz302153z

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A New Route to Nondestructive Top-Contacts for Molecular Electronics on Si: Pb Evaporated on Organic Monolayers

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A New Route to Nondestructive Top-Contacts for Molecular Electronics on Si: Pb Evaporated on Organic Monolayers

Robert Lovrincic, Olga Kraynis, Lavan, Rotem Har Lavan, Abd-Elrazek Haj-Yahya, Wenjie Li, Ayelet Vilan and David Cahen

Journal of Physical Chemistry Letters, Vol.4(3), pp.426-430

Feb/2013

DOI: https://doi.org/10.1021/jz302153z

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Abstract

Thermally evaporated Pb preserves the electronic properties of an organic monolayer (ML) on Si and surface passivation of the Si surface itself. The obtained current-voltage characteristics of Pb/ML/Si junctions agree with results obtained with the well-established Hg contact and preserve both the molecule-induced dipole effect on, and length-attenuation of, the current. We rationalize our findings by the lack of interaction between the Pb and the Si substrate. This method is fast, scalable, and compatible with standard semiconductor processing, results in close to 100% yield, and can help the development of large-scale utilization of silicon-organic hybrid electronics. Our experimental data show a dependence of the transport across the molecules on the substrate orientation, expressed in the smaller distance decay parameter with Si(100) than that with Si(111).

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Title: A New Route to Nondestructive Top-Contacts for Molecular Electronics on Si; Pb Evaporated on Organic Monolayers
Creators: Robert Lovrincic (null) - The Weizmann Institute of Science
Olga Kraynis (null) - The Weizmann Institute of Science
Lavan, Rotem Har Lavan (null) - The Weizmann Institute of Science
Abd-Elrazek Haj-Yahya (null)
Wenjie Li (null)
Ayelet Vilan (null) - 972WIS_INST___136
David Cahen (null) - The Weizmann Institute of Science
Resource Type: Journal article
Publication Details: Journal of Physical Chemistry Letters, Vol.4(3), pp.426-430; Feb/2013
Number of pages: 5
Language: English
DOI: https://doi.org/10.1021/jz302153z
Grant note: European Union [298664]; Minerva Foundation (Munich); Israel Science foundation via a Center of Excellence; Grand Center for Sensors and SecurityR.L. is grateful to the European Union for a Marie Curie postdoctoral fellowship (Grant FP7-PEOPLE-2011-IEF no. 298664) and to the Minerva Foundation (Munich) for a fellowship during the first part of this work. We thank the Israel Science foundation via a Center of Excellence and the Grand Center for Sensors and Security for partial support. D.C. holds the Schaefer chair in Energy research._ALMAME_DELIMITER_
Record Identifier: 993264993503596

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