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Toward air-stable multilayer phosphorene thin-films and transistors
Few-layer black phosphorus (BP), also known as phosphorene, is poised to be the most attractive graphene analogue owing to its high mobility approaching that of graphene, and its thickness-tunable band gap that can be as large as that of molybdenum disulfide. In essence, phosphorene represents the m...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4355728/ https://www.ncbi.nlm.nih.gov/pubmed/25758437 http://dx.doi.org/10.1038/srep08989 |
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author | Kim, Joon-Seok Liu, Yingnan Zhu, Weinan Kim, Seohee Wu, Di Tao, Li Dodabalapur, Ananth Lai, Keji Akinwande, Deji |
author_facet | Kim, Joon-Seok Liu, Yingnan Zhu, Weinan Kim, Seohee Wu, Di Tao, Li Dodabalapur, Ananth Lai, Keji Akinwande, Deji |
author_sort | Kim, Joon-Seok |
collection | PubMed |
description | Few-layer black phosphorus (BP), also known as phosphorene, is poised to be the most attractive graphene analogue owing to its high mobility approaching that of graphene, and its thickness-tunable band gap that can be as large as that of molybdenum disulfide. In essence, phosphorene represents the much sought after high-mobility, large direct band gap two-dimensional layered crystal that is ideal for optoelectronics and flexible devices. However, its instability in air is of paramount concern for practical applications. Here, we demonstrate air-stable BP devices with dielectric and hydrophobic encapsulation. Microscopy, spectroscopy, and transport techniques were employed to elucidate the aging mechanism, which can initiate from the BP surface for bare samples, or edges for samples with thin dielectric coating, highlighting the ineffectiveness of conventional scaled dielectrics. Our months-long studies indicate that a double layer capping of Al(2)O(3) and hydrophobic fluoropolymer affords BP devices and transistors with indefinite air-stability for the first time, overcoming a critical material challenge for applied research and development. |
format | Online Article Text |
id | pubmed-4355728 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-43557282015-03-17 Toward air-stable multilayer phosphorene thin-films and transistors Kim, Joon-Seok Liu, Yingnan Zhu, Weinan Kim, Seohee Wu, Di Tao, Li Dodabalapur, Ananth Lai, Keji Akinwande, Deji Sci Rep Article Few-layer black phosphorus (BP), also known as phosphorene, is poised to be the most attractive graphene analogue owing to its high mobility approaching that of graphene, and its thickness-tunable band gap that can be as large as that of molybdenum disulfide. In essence, phosphorene represents the much sought after high-mobility, large direct band gap two-dimensional layered crystal that is ideal for optoelectronics and flexible devices. However, its instability in air is of paramount concern for practical applications. Here, we demonstrate air-stable BP devices with dielectric and hydrophobic encapsulation. Microscopy, spectroscopy, and transport techniques were employed to elucidate the aging mechanism, which can initiate from the BP surface for bare samples, or edges for samples with thin dielectric coating, highlighting the ineffectiveness of conventional scaled dielectrics. Our months-long studies indicate that a double layer capping of Al(2)O(3) and hydrophobic fluoropolymer affords BP devices and transistors with indefinite air-stability for the first time, overcoming a critical material challenge for applied research and development. Nature Publishing Group 2015-03-11 /pmc/articles/PMC4355728/ /pubmed/25758437 http://dx.doi.org/10.1038/srep08989 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Kim, Joon-Seok Liu, Yingnan Zhu, Weinan Kim, Seohee Wu, Di Tao, Li Dodabalapur, Ananth Lai, Keji Akinwande, Deji Toward air-stable multilayer phosphorene thin-films and transistors |
title | Toward air-stable multilayer phosphorene thin-films and transistors |
title_full | Toward air-stable multilayer phosphorene thin-films and transistors |
title_fullStr | Toward air-stable multilayer phosphorene thin-films and transistors |
title_full_unstemmed | Toward air-stable multilayer phosphorene thin-films and transistors |
title_short | Toward air-stable multilayer phosphorene thin-films and transistors |
title_sort | toward air-stable multilayer phosphorene thin-films and transistors |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4355728/ https://www.ncbi.nlm.nih.gov/pubmed/25758437 http://dx.doi.org/10.1038/srep08989 |
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