High Performance Field Emitters.
The field electron emission performance of bulk, 1D, and 2D nanomaterialsis here empirically compared in the largest metal-analysis of its type. No clear trends are noted between the turn-on electric field and maximum current density as a function of emitter work function, while a more pronounced correlation with the emitters dimensionality is noted. The turn-on field is found to be twice as large for bulk materials compared to 1D and 2D materials, empirically confirming the wider communities view that high aspect ratios, and highly perturbed surface morphologies allow for enhanced field electron emitters.
Department of Engineering Electrical Engineering Division University of Cambridge 9 JJ Thomson Avenue CB3 0FA Cambridge UK.
Clare M
CM
Collins
Department of Engineering Electrical Engineering Division University of Cambridge 9 JJ Thomson Avenue CB3 0FA Cambridge UK.
Richard J
RJ
Parmee
Department of EngineeringElectrical Engineering DivisionUniversity of Cambridge9 JJ Thomson AvenueCB3 0FACambridgeUK; Quantum Nanoelectronics Research CentreTokyo Institute of Technology152-8550TokyoJapan.
William I
WI
Milne
Department of Engineering Electrical Engineering Division University of Cambridge 9 JJ Thomson Avenue CB3 0FA Cambridge UK.
Matthew T
MT
Cole
2D materials; aspect ratio; field electron emission; field enhancement; nanomaterials, work function