Abstract
Narrow atomically precise graphene nanoribbons hold great promise for electronic and optoelectronic applications, but the previously demonstrated nanoribbon-based devices typically suffer from low currents and mobilities. In this study, we explored the idea of lateral extension of graphene nanoribbons for improving their electrical conductivity. We started with a conventional chevron graphene nanoribbon, and designed its laterally extended variant. We synthesized these new graphene nanoribbons in solution and found that the lateral extension results in decrease of their electronic bandgap and improvement in the electrical conductivity of nanoribbon-based thin films. These films were employed in gas sensors and an electronic nose system, which showed improved responsivities to low molecular weight alcohols compared to similar sensors based on benchmark graphitic materials, such as graphene and reduced graphene oxide, and a reliable analyte recognition. This study shows the methodology for designing new atomically precise graphene nanoribbons with improved properties, their bottom-up synthesis, characterization, processing and implementation in electronic devices.
| Original language | English (US) |
|---|---|
| Article number | 820 |
| Journal | Nature communications |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| State | Published - Dec 1 2017 |
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ASJC Scopus subject areas
- Chemistry(all)
- Biochemistry, Genetics and Molecular Biology(all)
- Physics and Astronomy(all)
Cite this
Laterally extended atomically precise graphene nanoribbons with improved electrical conductivity for efficient gas sensing. / Mehdi Pour, Mohammad; Lashkov, Andrey; Radocea, Adrian; Liu, Ximeng; Sun, Tao; Lipatov, Alexey; Korlacki, Rafal A.; Shekhirev, Mikhail; Aluru, Narayana R; Lyding, Joseph W; Sysoev, Victor; Sinitskii, Alexander.
In: Nature communications, Vol. 8, No. 1, 820, 01.12.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Laterally extended atomically precise graphene nanoribbons with improved electrical conductivity for efficient gas sensing
AU - Mehdi Pour, Mohammad
AU - Lashkov, Andrey
AU - Radocea, Adrian
AU - Liu, Ximeng
AU - Sun, Tao
AU - Lipatov, Alexey
AU - Korlacki, Rafal A.
AU - Shekhirev, Mikhail
AU - Aluru, Narayana R
AU - Lyding, Joseph W
AU - Sysoev, Victor
AU - Sinitskii, Alexander
PY - 2017/12/1
Y1 - 2017/12/1
N2 - Narrow atomically precise graphene nanoribbons hold great promise for electronic and optoelectronic applications, but the previously demonstrated nanoribbon-based devices typically suffer from low currents and mobilities. In this study, we explored the idea of lateral extension of graphene nanoribbons for improving their electrical conductivity. We started with a conventional chevron graphene nanoribbon, and designed its laterally extended variant. We synthesized these new graphene nanoribbons in solution and found that the lateral extension results in decrease of their electronic bandgap and improvement in the electrical conductivity of nanoribbon-based thin films. These films were employed in gas sensors and an electronic nose system, which showed improved responsivities to low molecular weight alcohols compared to similar sensors based on benchmark graphitic materials, such as graphene and reduced graphene oxide, and a reliable analyte recognition. This study shows the methodology for designing new atomically precise graphene nanoribbons with improved properties, their bottom-up synthesis, characterization, processing and implementation in electronic devices.
AB - Narrow atomically precise graphene nanoribbons hold great promise for electronic and optoelectronic applications, but the previously demonstrated nanoribbon-based devices typically suffer from low currents and mobilities. In this study, we explored the idea of lateral extension of graphene nanoribbons for improving their electrical conductivity. We started with a conventional chevron graphene nanoribbon, and designed its laterally extended variant. We synthesized these new graphene nanoribbons in solution and found that the lateral extension results in decrease of their electronic bandgap and improvement in the electrical conductivity of nanoribbon-based thin films. These films were employed in gas sensors and an electronic nose system, which showed improved responsivities to low molecular weight alcohols compared to similar sensors based on benchmark graphitic materials, such as graphene and reduced graphene oxide, and a reliable analyte recognition. This study shows the methodology for designing new atomically precise graphene nanoribbons with improved properties, their bottom-up synthesis, characterization, processing and implementation in electronic devices.
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U2 - 10.1038/s41467-017-00692-4
DO - 10.1038/s41467-017-00692-4
M3 - Article
VL - 8
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 820
ER -