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Highly Reproducible Formation of a Polymer Single‐Molecule Junction for a Well‐Defined Current Signal
Author(s) -
Harashima Takanori,
Hasegawa Yusuke,
Kaneko Satoshi,
Kiguchi Manabu,
Ono Tomoya,
Nishino Tomoaki
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201903717
Subject(s) - nanoelectronics , polymer , molecular electronics , nanotechnology , molecule , quantum tunnelling , electronics , materials science , nanoscopic scale , break junction , monomer , current (fluid) , chemistry , optoelectronics , physics , organic chemistry , thermodynamics , composite material
Single‐molecule devices attract much interest in the development of nanoscale electronics. Although a variety of functional single molecules for single‐molecule electronics have been developed, there still remains the need to implement sophisticated functionalization toward practical applications. Given its superior functionality encountered in macroscopic materials, a polymer could be a useful building block in the single‐molecule devices. Therefore, a molecular junction composed of polymer has now been created. Furthermore, an automated algorithm was developed to quantitatively analyze the tunneling current through the junction. Quantitative analysis revealed that the polymer junction exhibits a higher formation probability and longer lifetime than its monomer counterpart. These results suggest that the polymer provides a unique opportunity to design both stable and highly functional molecular devices for nanoelectronics.