High Performance Field Emitters
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Collins, C., Parmee, R., Milne, W. I., & Cole, M. (2016). High Performance Field Emitters. Advanced Science, 3 (1500318)https://doi.org/10.1002/advs.201500318
By compiling the largest meta-analysis to date, across a diverse range of materials, here we show that the work function of a material does not strongly impact on field electron emission performance, when only the work function is considered. Materials studied include 1D, 2D and 3D/bulk with a range in work function from 1.33 eV to 7.75 eV. We find that the turn-on electric fields show a stronger dependency on dimensionality than on work function, with 3D/bulk materials typically requiring an electric field twice as large as those of the one-dimensional and two-dimensional emitters.
M.T.C. thanks the Oppenheimer Trust, Cambridge University, for generous financial support. This work was supported by an EPSRC Impact Acceleration grant and an Innovate UK Advanced Materials Feasibility Study award. CC thanks the EPSRC Centre for Doctoral Training in Ultra Precision.
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External DOI: https://doi.org/10.1002/advs.201500318
This record's URL: https://www.repository.cam.ac.uk/handle/1810/252627
Attribution 2.0 UK: England & Wales
Licence URL: http://creativecommons.org/licenses/by/2.0/uk/