Carbon nanowalls in field emission cathodes
The carbon nanowall (CNW) layers were grown from a gas mixture of hydrogen and methane, activated by a DC glow discharge, on Si substrates (Si/CNW layered structure). The second layer of CNW was grown either on the first layer (Si/CNW/CNW structure) or on Ni or NiO films deposited on the first CNW l...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Politehperiodika
2017-12-01
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| Series: | Tekhnologiya i Konstruirovanie v Elektronnoi Apparature |
| Subjects: | |
| Online Access: | http://www.tkea.com.ua/tkea/2017/6_2017/pdf/06.pdf |
| Summary: | The carbon nanowall (CNW) layers were grown from a gas mixture of hydrogen and methane, activated by a DC glow discharge, on Si substrates (Si/CNW layered structure). The second layer of CNW was grown either on the first layer (Si/CNW/CNW structure) or on Ni or NiO films deposited on the first CNW layer (Si/CNW/Ni/CNW and Si/CNW/NiO/CNW structures). The composition and structure of the resulting layered structures were studied using scanning electron microscopy, Raman spectroscopy, and X-ray diffractometry. It was found that annealing of Si/CNW structure in vacuum, growing of the second CNW layer on Si/CNW, as well as deposition of Ni or NiO films prior to the growing of the second CNW layer improve functional properties of field emission cathodes based on the electron-emitting CNW layers. |
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| ISSN: | 2225-5818 2309-9992 |