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Quantum interference effects at room temperature in OPV-based single-molecule junctions
Interference effects on charge transport through an individual molecule can lead to a notable modulation and suppression on its conductance. In this letter, we report the observation of quantum interference effects occurring at room temperature in single-molecule junctions based on oligo(3)-phenylen...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3663707/ https://www.ncbi.nlm.nih.gov/pubmed/23679986 http://dx.doi.org/10.1186/1556-276X-8-234 |
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author | Arroyo, Carlos R Frisenda, Riccardo Moth-Poulsen, Kasper Seldenthuis, Johannes S Bjørnholm, Thomas van der Zant, Herre SJ |
author_facet | Arroyo, Carlos R Frisenda, Riccardo Moth-Poulsen, Kasper Seldenthuis, Johannes S Bjørnholm, Thomas van der Zant, Herre SJ |
author_sort | Arroyo, Carlos R |
collection | PubMed |
description | Interference effects on charge transport through an individual molecule can lead to a notable modulation and suppression on its conductance. In this letter, we report the observation of quantum interference effects occurring at room temperature in single-molecule junctions based on oligo(3)-phenylenevinylene (OPV3) derivatives, in which the central benzene ring is coupled to either para- or meta-positions. Using the break-junction technique, we find that the conductance for a single meta-OPV3 molecule wired between gold electrodes is one order of magnitude smaller than that of a para-OPV3 molecule. Theoretical calculations confirm the occurrence of constructive and destructive interference in the para- and meta-OPV3 molecules respectively, which arises from the phase difference of the transmission coefficients through the molecular orbitals. |
format | Online Article Text |
id | pubmed-3663707 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Springer |
record_format | MEDLINE/PubMed |
spelling | pubmed-36637072013-06-03 Quantum interference effects at room temperature in OPV-based single-molecule junctions Arroyo, Carlos R Frisenda, Riccardo Moth-Poulsen, Kasper Seldenthuis, Johannes S Bjørnholm, Thomas van der Zant, Herre SJ Nanoscale Res Lett Nano Express Interference effects on charge transport through an individual molecule can lead to a notable modulation and suppression on its conductance. In this letter, we report the observation of quantum interference effects occurring at room temperature in single-molecule junctions based on oligo(3)-phenylenevinylene (OPV3) derivatives, in which the central benzene ring is coupled to either para- or meta-positions. Using the break-junction technique, we find that the conductance for a single meta-OPV3 molecule wired between gold electrodes is one order of magnitude smaller than that of a para-OPV3 molecule. Theoretical calculations confirm the occurrence of constructive and destructive interference in the para- and meta-OPV3 molecules respectively, which arises from the phase difference of the transmission coefficients through the molecular orbitals. Springer 2013-05-16 /pmc/articles/PMC3663707/ /pubmed/23679986 http://dx.doi.org/10.1186/1556-276X-8-234 Text en Copyright ©2013 Arroyo et al.; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Nano Express Arroyo, Carlos R Frisenda, Riccardo Moth-Poulsen, Kasper Seldenthuis, Johannes S Bjørnholm, Thomas van der Zant, Herre SJ Quantum interference effects at room temperature in OPV-based single-molecule junctions |
title | Quantum interference effects at room temperature in OPV-based single-molecule junctions |
title_full | Quantum interference effects at room temperature in OPV-based single-molecule junctions |
title_fullStr | Quantum interference effects at room temperature in OPV-based single-molecule junctions |
title_full_unstemmed | Quantum interference effects at room temperature in OPV-based single-molecule junctions |
title_short | Quantum interference effects at room temperature in OPV-based single-molecule junctions |
title_sort | quantum interference effects at room temperature in opv-based single-molecule junctions |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3663707/ https://www.ncbi.nlm.nih.gov/pubmed/23679986 http://dx.doi.org/10.1186/1556-276X-8-234 |
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