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Charge Transport in and Electroluminescence from sp(3)-Functionalized Carbon Nanotube Networks
[Image: see text] The controlled covalent functionalization of semiconducting single-walled carbon nanotubes (SWCNTs) with luminescent sp(3) defects leads to additional narrow and tunable photoluminescence features in the near-infrared and even enables single-photon emission at room temperature, thu...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8223481/ https://www.ncbi.nlm.nih.gov/pubmed/34048654 http://dx.doi.org/10.1021/acsnano.1c02878 |
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author | Zorn, Nicolas F. Berger, Felix J. Zaumseil, Jana |
author_facet | Zorn, Nicolas F. Berger, Felix J. Zaumseil, Jana |
author_sort | Zorn, Nicolas F. |
collection | PubMed |
description | [Image: see text] The controlled covalent functionalization of semiconducting single-walled carbon nanotubes (SWCNTs) with luminescent sp(3) defects leads to additional narrow and tunable photoluminescence features in the near-infrared and even enables single-photon emission at room temperature, thus strongly expanding their application potential. However, the successful integration of sp(3)-functionalized SWCNTs in optoelectronic devices with efficient defect state electroluminescence not only requires control over their emission properties but also a detailed understanding of the impact of functionalization on their electrical performance, especially in dense networks. Here, we demonstrate ambipolar, light-emitting field-effect transistors based on networks of pristine and functionalized polymer-sorted (6,5) SWCNTs. We investigate the influence of sp(3) defects on charge transport by employing electroluminescence and (charge-modulated) photoluminescence spectroscopy combined with temperature-dependent current–voltage measurements. We find that sp(3)-functionalized SWCNTs actively participate in charge transport within the network as mobile carriers efficiently sample the sp(3) defects, which act as shallow trap states. While both hole and electron mobilities decrease with increasing degree of functionalization, the transistors remain fully operational, showing electroluminescence from the defect states that can be tuned by the defect density. |
format | Online Article Text |
id | pubmed-8223481 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-82234812021-06-25 Charge Transport in and Electroluminescence from sp(3)-Functionalized Carbon Nanotube Networks Zorn, Nicolas F. Berger, Felix J. Zaumseil, Jana ACS Nano [Image: see text] The controlled covalent functionalization of semiconducting single-walled carbon nanotubes (SWCNTs) with luminescent sp(3) defects leads to additional narrow and tunable photoluminescence features in the near-infrared and even enables single-photon emission at room temperature, thus strongly expanding their application potential. However, the successful integration of sp(3)-functionalized SWCNTs in optoelectronic devices with efficient defect state electroluminescence not only requires control over their emission properties but also a detailed understanding of the impact of functionalization on their electrical performance, especially in dense networks. Here, we demonstrate ambipolar, light-emitting field-effect transistors based on networks of pristine and functionalized polymer-sorted (6,5) SWCNTs. We investigate the influence of sp(3) defects on charge transport by employing electroluminescence and (charge-modulated) photoluminescence spectroscopy combined with temperature-dependent current–voltage measurements. We find that sp(3)-functionalized SWCNTs actively participate in charge transport within the network as mobile carriers efficiently sample the sp(3) defects, which act as shallow trap states. While both hole and electron mobilities decrease with increasing degree of functionalization, the transistors remain fully operational, showing electroluminescence from the defect states that can be tuned by the defect density. American Chemical Society 2021-05-28 2021-06-22 /pmc/articles/PMC8223481/ /pubmed/34048654 http://dx.doi.org/10.1021/acsnano.1c02878 Text en © 2021 The Authors. Published by American Chemical Society Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Zorn, Nicolas F. Berger, Felix J. Zaumseil, Jana Charge Transport in and Electroluminescence from sp(3)-Functionalized Carbon Nanotube Networks |
title | Charge
Transport in and Electroluminescence from sp(3)-Functionalized
Carbon Nanotube Networks |
title_full | Charge
Transport in and Electroluminescence from sp(3)-Functionalized
Carbon Nanotube Networks |
title_fullStr | Charge
Transport in and Electroluminescence from sp(3)-Functionalized
Carbon Nanotube Networks |
title_full_unstemmed | Charge
Transport in and Electroluminescence from sp(3)-Functionalized
Carbon Nanotube Networks |
title_short | Charge
Transport in and Electroluminescence from sp(3)-Functionalized
Carbon Nanotube Networks |
title_sort | charge
transport in and electroluminescence from sp(3)-functionalized
carbon nanotube networks |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8223481/ https://www.ncbi.nlm.nih.gov/pubmed/34048654 http://dx.doi.org/10.1021/acsnano.1c02878 |
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