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Self-Organized and Cu-Coordinated Surface Linear Polymerization.

Authors :
Qing Li
Owens, Jonathan R.
Chengbo Han
Sumpter, Bobby G.
Wenchang Lu
Bernholc, Jerzy
Meunier, V.
Maksymovych, Peter
Fuentes-Cabrera, Miguel
Minghu Pan
Source :
Scientific Reports; 7/5/2013, p1-6, 6p
Publication Year :
2013

Abstract

We demonstrate a controllable surface-coordinated linear polymerization of long-chain poly(phenylacetylenyl)s that are self-organized into a "circuit-board" pattern on a Cu(100) surface. Scanning tunneling microscopy/spectroscopy (STM/S) corroborated by ab initio calculations, reveals the atomistic details of the molecular structure, and provides a clear signature of electronic and vibrational properties of the poly(phenylacetylene)s chains. Notably, the polymerization reaction is confined epitaxially to the copper lattice, despite a large strain along the polymerized chain that subsequently renders it metallic. Polymerization and depolymerization reactions can be controlled locally at the nanoscale by using a charged metal tip. This control demonstrates the possibility of precisely accessing and controlling conjugated chain-growth polymerization at low temperature. This finding may lead to the bottom-up design and realization of sophisticated architectures for molecular nano-devices. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20452322
Database :
Complementary Index
Journal :
Scientific Reports
Publication Type :
Academic Journal
Accession number :
91658340
Full Text :
https://doi.org/10.1038/srep02102