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Ligand-Assisted Formation of Graphene/Quantum Dot Monolayers with Improved Morphological and Electrical Properties
Hybrid nanomaterials based on graphene and PbS quantum dots (QDs) have demonstrated promising applications in optoelectronics. However, the formation of high-quality large-area hybrid films remains technologically challenging. Here, we demonstrate that ligand-assisted self-organization of covalently...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221828/ https://www.ncbi.nlm.nih.gov/pubmed/32290368 http://dx.doi.org/10.3390/nano10040723 |
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author | Litvin, Aleksandr P. Babaev, Anton A. Parfenov, Peter S. Dubavik, Aliaksei Cherevkov, Sergei A. Baranov, Mikhail A. Bogdanov, Kirill V. Reznik, Ivan A. Ilin, Pavel O. Zhang, Xiaoyu Purcell-Milton, Finn Gun’ko, Yurii K. Fedorov, Anatoly V. Baranov, Alexander V. |
author_facet | Litvin, Aleksandr P. Babaev, Anton A. Parfenov, Peter S. Dubavik, Aliaksei Cherevkov, Sergei A. Baranov, Mikhail A. Bogdanov, Kirill V. Reznik, Ivan A. Ilin, Pavel O. Zhang, Xiaoyu Purcell-Milton, Finn Gun’ko, Yurii K. Fedorov, Anatoly V. Baranov, Alexander V. |
author_sort | Litvin, Aleksandr P. |
collection | PubMed |
description | Hybrid nanomaterials based on graphene and PbS quantum dots (QDs) have demonstrated promising applications in optoelectronics. However, the formation of high-quality large-area hybrid films remains technologically challenging. Here, we demonstrate that ligand-assisted self-organization of covalently bonded PbS QDs and reduced graphene oxide (rGO) can be utilized for the formation of highly uniform monolayers. After the post-deposition ligand exchange, these films demonstrated high conductivity and photoresponse. The obtained films demonstrate a remarkable improvement in morphology and charge transport compared to those obtained by the spin-coating method. It is expected that these materials might find a range of applications in photovoltaics and optoelectronics. |
format | Online Article Text |
id | pubmed-7221828 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-72218282020-05-21 Ligand-Assisted Formation of Graphene/Quantum Dot Monolayers with Improved Morphological and Electrical Properties Litvin, Aleksandr P. Babaev, Anton A. Parfenov, Peter S. Dubavik, Aliaksei Cherevkov, Sergei A. Baranov, Mikhail A. Bogdanov, Kirill V. Reznik, Ivan A. Ilin, Pavel O. Zhang, Xiaoyu Purcell-Milton, Finn Gun’ko, Yurii K. Fedorov, Anatoly V. Baranov, Alexander V. Nanomaterials (Basel) Article Hybrid nanomaterials based on graphene and PbS quantum dots (QDs) have demonstrated promising applications in optoelectronics. However, the formation of high-quality large-area hybrid films remains technologically challenging. Here, we demonstrate that ligand-assisted self-organization of covalently bonded PbS QDs and reduced graphene oxide (rGO) can be utilized for the formation of highly uniform monolayers. After the post-deposition ligand exchange, these films demonstrated high conductivity and photoresponse. The obtained films demonstrate a remarkable improvement in morphology and charge transport compared to those obtained by the spin-coating method. It is expected that these materials might find a range of applications in photovoltaics and optoelectronics. MDPI 2020-04-11 /pmc/articles/PMC7221828/ /pubmed/32290368 http://dx.doi.org/10.3390/nano10040723 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Litvin, Aleksandr P. Babaev, Anton A. Parfenov, Peter S. Dubavik, Aliaksei Cherevkov, Sergei A. Baranov, Mikhail A. Bogdanov, Kirill V. Reznik, Ivan A. Ilin, Pavel O. Zhang, Xiaoyu Purcell-Milton, Finn Gun’ko, Yurii K. Fedorov, Anatoly V. Baranov, Alexander V. Ligand-Assisted Formation of Graphene/Quantum Dot Monolayers with Improved Morphological and Electrical Properties |
title | Ligand-Assisted Formation of Graphene/Quantum Dot Monolayers with Improved Morphological and Electrical Properties |
title_full | Ligand-Assisted Formation of Graphene/Quantum Dot Monolayers with Improved Morphological and Electrical Properties |
title_fullStr | Ligand-Assisted Formation of Graphene/Quantum Dot Monolayers with Improved Morphological and Electrical Properties |
title_full_unstemmed | Ligand-Assisted Formation of Graphene/Quantum Dot Monolayers with Improved Morphological and Electrical Properties |
title_short | Ligand-Assisted Formation of Graphene/Quantum Dot Monolayers with Improved Morphological and Electrical Properties |
title_sort | ligand-assisted formation of graphene/quantum dot monolayers with improved morphological and electrical properties |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221828/ https://www.ncbi.nlm.nih.gov/pubmed/32290368 http://dx.doi.org/10.3390/nano10040723 |
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