Structure of CNT thin films for cold cathode emitters

M. Kozłowski; I. Stępińska; K. Sobczak; E. Czerwosz

doi:10.1117/12.2205796

11 September 2015 Structure of CNT thin films for cold cathode emitters

M. Kozłowski, I. Stępińska, K. Sobczak, E. Czerwosz

Proceedings Volume 9662, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015; 96624G (2015) https://doi.org/10.1117/12.2205796
Event: XXXVI Symposium on Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments (Wilga 2015), 2015, Wilga, Poland

Abstract

In this paper different structures of CNT layer cathode showing different electron emission characteristics depending on Ni concentration are presented. The cathode’s layers were obtained by PVD/CVD method. Nanocomposite C-Ni layer were prepared in PVD step. This C-Ni layer was precursor layer for CNT layer growth in CVD process. Prepared CNT layers were studied with SEM and TEM. Their emissive properties were investigated in means F-N theory. It was found that the threshold field for these emitters varies from 1,7 V/μm to 20 V/μm. For some types of CNT cathodes it is possible to obtain the emission current intensity 55μA at the electric field ~3 V/μm.

Citation Download Citation

M. Kozłowski, I. Stępińska, K. Sobczak, and E. Czerwosz "Structure of CNT thin films for cold cathode emitters", Proc. SPIE 9662, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015, 96624G (11 September 2015); https://doi.org/10.1117/12.2205796

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