Title :
Extremely low threshold of field emission from graphene nanoclusters
Author :
Fursey, G.N. ; Polyakov, M.A. ; Kontonistov, A.A. ; Yafyasov, A.M. ; Pavlov, B.S. ; Bogevolnov, V.B.
Author_Institution :
Bonch-Bruevitch State Univ. of Telecommun., St.-Petersburg, Russia
Abstract :
Carbon nano-cluster cathodes exhibit a low threshold electron emission, which is 2-3 orders lower than on metals and semiconductors. We confirm the effect by direct experiments with graphene structures. We are suggesting the model based on interference electrons wave function in 2D-space charge region of carbon and Tamm´s surface states of dangling bonds. This barrier is transparent for electrons at Fermi level due to the resonance.
Keywords :
Fermi level; cathodes; dangling bonds; electron field emission; graphene; nanostructured materials; space charge; surface states; wave functions; 2D-space charge region; C; Fermi level; Tamm surface states; carbon nanocluster cathodes; dangling bonds; field emission threshold; graphene nanoclusters; interference electrons wave function; low electron emission threshold; Carbon; Carbon dioxide; Cathodes; Electric fields; Electric potential; Nanostructures; Quantization; current-voltage characteristic; emission image; field emission; nano-clustered carbon; resonance tunneling;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2012 25th International
Conference_Location :
Jeju
Print_ISBN :
978-1-4673-1983-6
Electronic_ISBN :
pending
DOI :
10.1109/IVNC.2012.6316843
