Field-emission Properties of Ni-C Nanocomposite Films
| Authors | A.V. Arkhipov, P.G. Gabdullin, M.V. Mishin, V.S. Protopopova, S.I. Krel, D.E. Drobinin, N.M. Gnuchev |
| Affiliations | Peter the Great St.-Petersburg Polytechnic University, 29, Politekhnicheskaya st., 195251 St.-Petersburg, Russia |
| Е-mail | Gnuchev.nm@spbstu.ru |
| Issue | Volume 8, Year 2016, Number 2 |
| Dates | Received 15 May 2016; published online 21 June 2016 |
| Citation | A.V. Arkhipov, P.G. Gabdullin, M.V. Mishin, et al., J. Nano- Electron. Phys. 8 No 2, 02058 (2016) |
| DOI | 10.21272/jnep.8(2).02058 |
| PACS Number(s) | 79.70. + q, 79.60.Jv, 81.05.uj, 81.07. – b |
| Keywords | Field electron emission (2) , Nanocomposite (27) , Thin films (60) , Carbon materials (2) . |
| Annotation | Field-emission properties of Ni-C nanocomposite thin films were experimentally studied. The films were deposited at Si substrates using CVD technique with a metalloorganic precursor and were composed by nm-scale grains of metallic Ni bounded with a carbonic weakly-conducting matrix. In the samples with lower effective thickness, the Ni particles were separated from each other. Such films showed capability of facilitated emission with threshold field values as low as a few V/μm. Thicker coating samples, with metallic particle merged in a conductive layer, required annealing at 470-600 °С in vacuum to produce low-field emission current. The observed emission behavior agrees with the previously proposed model considering low-field emission from nanostructured carbonic materials as a multi-stage process involving generation of hot electrons at interface boundaries. |
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