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Title: Ultrasensitive gas detection of large-area boron-doped graphene

Abstract

Heteroatom doping is an efficient way to modify the chemical and electronic properties of graphene. In particular, boron doping is expected to induce a p-type conducting behavior to pristine (undoped) graphene which could lead to diverse applications. But, the experimental progress on atomic scale visualization and sensing properties of large-area boron-doped graphene (BG) sheets is still very scarce. This work describes the controlled growth of centimeter size, high-crystallinity BG sheets. Scanning tunneling microscopy and spectroscopy are used to visualize the atomic structure and the local density of states around boron dopants. We confirmed that BG behaves as a p-type conductor and a unique croissant-like feature is frequently observed within the BG lattice, which is caused by the presence of B-C trimmers embedded within the hexagonal lattice. Interestingly, it is demonstrated for the first time that BG exhibits unique sensing capabilities when detecting toxic gases, such as NO2 and NH3 , being able to detect extremely low concentrations (e.g. parts per trillion, parts per billion). Our work envisions that other attractive applications could now be explored based on as-synthesized BG.

Authors:
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Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1235191
Alternate Identifier(s):
OSTI ID: 1265826
Grant/Contract Number:  
Center for Nanophase Materials Sciences (CNMS); AC05-00OR22725; 2014CB932401; ARO-
Resource Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Volume: 112 Journal Issue: 47; Journal ID: ISSN 0027-8424
Publisher:
Proceedings of the National Academy of Sciences
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; graphene; doping; gas sensing; STM; STS

Citation Formats

Lv, Ruitao, Chen, Gugang, Li, Qing, McCreary, Amber, Botello-Méndez, Andrés, Morozov, S. V., Liang, Liangbo, Declerck, Xavier, Perea-López, Nestor, Cullen, David A., Feng, Simin, Elías, Ana Laura, Cruz-Silva, Rodolfo, Fujisawa, Kazunori, Endo, Morinobu, Kang, Feiyu, Charlier, Jean-Christophe, Meunier, Vincent, Pan, Minghu, Harutyunyan, Avetik R., Novoselov, Konstantin S., and Terrones, Mauricio. Ultrasensitive gas detection of large-area boron-doped graphene. United States: N. p., 2015. Web. doi:10.1073/pnas.1505993112.
Lv, Ruitao, Chen, Gugang, Li, Qing, McCreary, Amber, Botello-Méndez, Andrés, Morozov, S. V., Liang, Liangbo, Declerck, Xavier, Perea-López, Nestor, Cullen, David A., Feng, Simin, Elías, Ana Laura, Cruz-Silva, Rodolfo, Fujisawa, Kazunori, Endo, Morinobu, Kang, Feiyu, Charlier, Jean-Christophe, Meunier, Vincent, Pan, Minghu, Harutyunyan, Avetik R., Novoselov, Konstantin S., & Terrones, Mauricio. Ultrasensitive gas detection of large-area boron-doped graphene. United States. doi:https://doi.org/10.1073/pnas.1505993112
Lv, Ruitao, Chen, Gugang, Li, Qing, McCreary, Amber, Botello-Méndez, Andrés, Morozov, S. V., Liang, Liangbo, Declerck, Xavier, Perea-López, Nestor, Cullen, David A., Feng, Simin, Elías, Ana Laura, Cruz-Silva, Rodolfo, Fujisawa, Kazunori, Endo, Morinobu, Kang, Feiyu, Charlier, Jean-Christophe, Meunier, Vincent, Pan, Minghu, Harutyunyan, Avetik R., Novoselov, Konstantin S., and Terrones, Mauricio. Mon . "Ultrasensitive gas detection of large-area boron-doped graphene". United States. doi:https://doi.org/10.1073/pnas.1505993112.
@article{osti_1235191,
title = {Ultrasensitive gas detection of large-area boron-doped graphene},
author = {Lv, Ruitao and Chen, Gugang and Li, Qing and McCreary, Amber and Botello-Méndez, Andrés and Morozov, S. V. and Liang, Liangbo and Declerck, Xavier and Perea-López, Nestor and Cullen, David A. and Feng, Simin and Elías, Ana Laura and Cruz-Silva, Rodolfo and Fujisawa, Kazunori and Endo, Morinobu and Kang, Feiyu and Charlier, Jean-Christophe and Meunier, Vincent and Pan, Minghu and Harutyunyan, Avetik R. and Novoselov, Konstantin S. and Terrones, Mauricio},
abstractNote = {Heteroatom doping is an efficient way to modify the chemical and electronic properties of graphene. In particular, boron doping is expected to induce a p-type conducting behavior to pristine (undoped) graphene which could lead to diverse applications. But, the experimental progress on atomic scale visualization and sensing properties of large-area boron-doped graphene (BG) sheets is still very scarce. This work describes the controlled growth of centimeter size, high-crystallinity BG sheets. Scanning tunneling microscopy and spectroscopy are used to visualize the atomic structure and the local density of states around boron dopants. We confirmed that BG behaves as a p-type conductor and a unique croissant-like feature is frequently observed within the BG lattice, which is caused by the presence of B-C trimmers embedded within the hexagonal lattice. Interestingly, it is demonstrated for the first time that BG exhibits unique sensing capabilities when detecting toxic gases, such as NO2 and NH3 , being able to detect extremely low concentrations (e.g. parts per trillion, parts per billion). Our work envisions that other attractive applications could now be explored based on as-synthesized BG.},
doi = {10.1073/pnas.1505993112},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 47,
volume = 112,
place = {United States},
year = {2015},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
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DOI: https://doi.org/10.1073/pnas.1505993112

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Cited by: 33 works
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