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A new approach for high-yield metal-molecule-metal junctions by direct metal transfer method

Title
A new approach for high-yield metal-molecule-metal junctions by direct metal transfer method
Author
정희준
Keywords
molecular electronics; self-assembled monolayer; metal-molecule-metal junction; alkanethiolates; direct metal transfer; SELF-ASSEMBLED MONOLAYERS; GRAPHENE OXIDE-FILMS; LARGE-AREA; ELECTRICAL CONTACTS; TRANSPORT JUNCTIONS; ELECTRONIC DEVICES; ORGANIC-MOLECULES; CHARGE-TRANSPORT; TOP-CONTACTS; RESISTANCE
Issue Date
2015-01
Publisher
IOP PUBLISHING LTD
Citation
NANOTECHNOLOGY, v. 26, No. 2
Abstract
The realization of high-yield, stable molecular junctions has been a long-standing challenge in the field of molecular electronics research, and it is an essential prerequisite for characterizing and understanding the charge transport properties of molecular junctions prior to their device applications. Here, we introduce a new approach for obtaining high-yield, vertically structured metal-molecule-metal junctions in which the top metal electrodes are formed on alkanethiolate self-assembled monolayers by a direct metal transfer method without the use of any additional protecting interlayers in the junctions. The fabricated alkanethiolate molecular devices exhibited considerably improved device yields (similar to 70%) in comparison to the typical low device yields ( less than a few %) of molecular junctions in which the top metal electrodes are fabricated using the conventional evaporation method. We compared our method with other molecular device fabrication methods in terms of charge transport parameters. This study suggests a potential new device platform for realizing robust, high-yield molecular junctions and investigating the electronic properties of devices.
URI
http://iopscience.iop.org/article/10.1088/0957-4484/26/2/025601/metahttp://hdl.handle.net/20.500.11754/35406
ISSN
0957-4484; 1361-6528
DOI
10.1088/0957-4484/26/2/025601
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > APPLIED PHYSICS(응용물리학과) > Articles
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