Wyszukiwarka
Stable Field Electron Emission and Plasma Illumination from Boron and Nitrogen Co‐Doped Edge‐Rich Diamond‐Enhanced Carbon Nanowalls
Abstrakt
Superior field electron emission (FEE) characteristics are achieved in edge-rich diamond-enhanced carbon nanowalls (D-ECNWs) grown in a single-step chemical vapor deposition process co-doped with boron and nitrogen. The structure consists of sharp, highly conductive graphene edges supplied by a solid, diamond-rich bottom. The Raman and transmission electron microscopy studies reveal a hybrid nature of sp3-diamond and sp2-graphene in these nanowalls. The ab-initio calculations were carried out to support the experimental observations of diamond-graphene hybrid structure. Finally, this hybrid D-ECNWs is employed as a cathode in an FEE device resulting in a low turn-on field of 3.1 V µm−1, a large field enhancement factor, a high FEE Je of 2.6 mA cm−2, and long lifetime stability of 438 min. Such an enhancement in the FEE originates from the unique materials combination, resulting in good electron transport from the graphene phases and efficient FEE of electrons from the sharp edges on the nanowalls. The prospective application of these materials is displayed by employing these hybrids as cathodes in a microplasma device ensuing a low threshold voltage of 160 V and high plasma stability of 140 min, which confirms the role of these hybrid structured nanowalls in the enhancement of electron emission.
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Autorzy (10)
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Kamatchi J Sankaran
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Krzysztof Gajewski
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Piotr Tatarczak
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Igor Wlasny
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Andrzej Wysmolek
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Ken Haenen
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Teodor Gotszalk
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Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1002/admi.202100464
- Licencja
- Copyright (2021 Wiley-VCH GmbH)
Słowa kluczowe
Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
-
Advanced Materials Interfaces
nr 8,
ISSN: 2196-7350 - Język:
- angielski
- Rok wydania:
- 2021
- Opis bibliograficzny:
- Ficek M., Dec B., Sankaran K. J., Gajewski K., Tatarczak P., Wlasny I., Wysmolek A., Haenen K., Gotszalk T., Bogdanowicz R.: Stable Field Electron Emission and Plasma Illumination from Boron and Nitrogen Co‐Doped Edge‐Rich Diamond‐Enhanced Carbon Nanowalls// Advanced Materials Interfaces -Vol. 8,iss. 20 (2021), s.2100464-
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1002/admi.202100464
- Weryfikacja:
- Politechnika Gdańska
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