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Tunable two-dimensional interfacial coupling in molecular heterostructures
Two-dimensional van der Waals heterostructures are of considerable interest for the next generation nanoelectronics because of their unique interlayer coupling and optoelectronic properties. Here, we report a modified Langmuir–Blodgett method to organize two-dimensional molecular charge transfer cry...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5567094/ https://www.ncbi.nlm.nih.gov/pubmed/28827651 http://dx.doi.org/10.1038/s41467-017-00390-1 |
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author | Xu, Beibei Chakraborty, Himanshu Yadav, Vivek K. Zhang, Zhuolei Klein, Michael L. Ren, Shenqiang |
author_facet | Xu, Beibei Chakraborty, Himanshu Yadav, Vivek K. Zhang, Zhuolei Klein, Michael L. Ren, Shenqiang |
author_sort | Xu, Beibei |
collection | PubMed |
description | Two-dimensional van der Waals heterostructures are of considerable interest for the next generation nanoelectronics because of their unique interlayer coupling and optoelectronic properties. Here, we report a modified Langmuir–Blodgett method to organize two-dimensional molecular charge transfer crystals into arbitrarily and vertically stacked heterostructures, consisting of bis(ethylenedithio)tetrathiafulvalene (BEDT–TTF)/C(60) and poly(3-dodecylthiophene-2,5-diyl) (P3DDT)/C(60) nanosheets. A strong and anisotropic interfacial coupling between the charge transfer pairs is demonstrated. The van der Waals heterostructures exhibit pressure dependent sensitivity with a high piezoresistance coefficient of −4.4 × 10(−6) Pa(−1), and conductance and capacitance tunable by external stimuli (ferroelectric field and magnetic field). Density functional theory calculations confirm charge transfer between the n-orbitals of the S atoms in BEDT–TTF of the BEDT–TTF/C(60) layer and the π* orbitals of C atoms in C(60) of the P3DDT/C(60) layer contribute to the inter-complex CT. The two-dimensional molecular van der Waals heterostructures with tunable optical–electronic–magnetic coupling properties are promising for flexible electronic applications. |
format | Online Article Text |
id | pubmed-5567094 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-55670942017-08-30 Tunable two-dimensional interfacial coupling in molecular heterostructures Xu, Beibei Chakraborty, Himanshu Yadav, Vivek K. Zhang, Zhuolei Klein, Michael L. Ren, Shenqiang Nat Commun Article Two-dimensional van der Waals heterostructures are of considerable interest for the next generation nanoelectronics because of their unique interlayer coupling and optoelectronic properties. Here, we report a modified Langmuir–Blodgett method to organize two-dimensional molecular charge transfer crystals into arbitrarily and vertically stacked heterostructures, consisting of bis(ethylenedithio)tetrathiafulvalene (BEDT–TTF)/C(60) and poly(3-dodecylthiophene-2,5-diyl) (P3DDT)/C(60) nanosheets. A strong and anisotropic interfacial coupling between the charge transfer pairs is demonstrated. The van der Waals heterostructures exhibit pressure dependent sensitivity with a high piezoresistance coefficient of −4.4 × 10(−6) Pa(−1), and conductance and capacitance tunable by external stimuli (ferroelectric field and magnetic field). Density functional theory calculations confirm charge transfer between the n-orbitals of the S atoms in BEDT–TTF of the BEDT–TTF/C(60) layer and the π* orbitals of C atoms in C(60) of the P3DDT/C(60) layer contribute to the inter-complex CT. The two-dimensional molecular van der Waals heterostructures with tunable optical–electronic–magnetic coupling properties are promising for flexible electronic applications. Nature Publishing Group UK 2017-08-22 /pmc/articles/PMC5567094/ /pubmed/28827651 http://dx.doi.org/10.1038/s41467-017-00390-1 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Xu, Beibei Chakraborty, Himanshu Yadav, Vivek K. Zhang, Zhuolei Klein, Michael L. Ren, Shenqiang Tunable two-dimensional interfacial coupling in molecular heterostructures |
title | Tunable two-dimensional interfacial coupling in molecular heterostructures |
title_full | Tunable two-dimensional interfacial coupling in molecular heterostructures |
title_fullStr | Tunable two-dimensional interfacial coupling in molecular heterostructures |
title_full_unstemmed | Tunable two-dimensional interfacial coupling in molecular heterostructures |
title_short | Tunable two-dimensional interfacial coupling in molecular heterostructures |
title_sort | tunable two-dimensional interfacial coupling in molecular heterostructures |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5567094/ https://www.ncbi.nlm.nih.gov/pubmed/28827651 http://dx.doi.org/10.1038/s41467-017-00390-1 |
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