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Massively parallel ...
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Dubois, Valentin J.KTH,Mikro- och nanosystemteknik
(author)
Massively parallel fabrication of crack-defined gold break junctions featuring sub-3 nm gaps for molecular devices
- Article/chapterEnglish2018
Publisher, publication year, extent ...
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2018-08-24
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Nature Publishing Group,2018
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-234594
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-234594URI
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https://doi.org/10.1038/s41467-018-05785-2DOI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20180914
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Break junctions provide tip-shaped contact electrodes that are fundamental components of nano and molecular electronics. However, the fabrication of break junctions remains notoriously time-consuming and difficult to parallelize. Here we demonstrate true parallel fabrication of gold break junctions featuring sub-3 nm gaps on the wafer-scale, by relying on a novel self-breaking mechanism based on controlled crack formation in notched bridge structures. We achieve fabrication densities as high as 7 million junctions per cm(2), with fabrication yields of around 7% for obtaining crack-defined break junctions with sub-3 nm gaps of fixed gap width that exhibit electron tunneling. We also form molecular junctions using dithiol-terminated oligo(phenylene ethynylene) (OPE3) to demonstrate the feasibility of our approach for electrical probing of molecules down to liquid helium temperatures. Our technology opens a whole new range of experimental opportunities for nano and molecular electronics applications, by enabling very large-scale fabrication of solid-state break junctions.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Raja, Shyamprasad NatarajanKTH,Mikro- och nanosystemteknik(Swepub:kth)u1mstzzw
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Gehring, PascalDelft Univ Technol, Kavli Inst Nanosci, Lorentzweg 1, NL-2628 CJ Delft, Netherlands.
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Caneva, SabinaDelft Univ Technol, Kavli Inst Nanosci, Lorentzweg 1, NL-2628 CJ Delft, Netherlands.
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van der Zant, Herre S. J.Delft Univ Technol, Kavli Inst Nanosci, Lorentzweg 1, NL-2628 CJ Delft, Netherlands.
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Niklaus, Frank,1971-KTH,Mikro- och nanosystemteknik(Swepub:kth)u1bcu8r2
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Stemme, Göran,1958-KTH,Mikro- och nanosystemteknik(Swepub:kth)u1oyebfq
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KTHMikro- och nanosystemteknik
(creator_code:org_t)
Related titles
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In:Nature Communications: Nature Publishing Group92041-1723
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