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Role of sp2 phase in field emission from nanostructured carbons (2001)

Ilie, A. ; Ferrari, A. C. ; Yagi, T. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 90 (2001), S. 2024-2032

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: It is shown that sp2 phase organization plays an important role in the field emission from nanostructured carbons. Emission is found to depend on the cluster size, anisotropy, and mesoscale bonding of the sp2 phase, and the electronic disorder. It is found by Raman spectroscopy that increasing the size of sp2 clusters in the 1–10 nm range improves emission. Anisotropy in the sp2 phase orientation can help or inhibit the emission. sp2 clusters embedded in the sp3 matrix or electronic disorder induced by localized defects oriented in the field direction can provide a local field enhancement to facilitate the emission. © 2001 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.1381001

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