Hybrid thermal-field emission of ZnO nanowires (Articolo in rivista)

Type
Label
  • Hybrid thermal-field emission of ZnO nanowires (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.3670331 (literal)
Alternative label
  • Ulisse G.; Brunetti F.; Vomiero A.; Natile M.M., Sberveglieri G.; Di Carlo A. (2011)
    Hybrid thermal-field emission of ZnO nanowires
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ulisse G.; Brunetti F.; Vomiero A.; Natile M.M., Sberveglieri G.; Di Carlo A. (literal)
Pagina inizio
  • 243108 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • 10.1021/om2004145 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://scitation.aip.org/content/aip/journal/apl/99/24/10.1063/1.3670331 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 99 (literal)
Rivista
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  • pubblicazione scientifica (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1,2,6 : University of Rome Tor Vergata, viale del Politecnico 1, I-00133 Rome, Italy / 3,5 : CNR-IDASC Sensor Lab., Department of Physics and Chemistry for Engineering and Materials, Brescia University, via Valotti 9, I-25133 Brescia, Italy / 4 : CNR-ISTM, Department of Chemical Sciences, Padova University, via Marzolo 1, I-35131 Padova, Italy (literal)
Titolo
  • Hybrid thermal-field emission of ZnO nanowires (literal)
Abstract
  • The electron emission properties of an array of ZnO nanowires were studied in the temperature range of 300-473 K. An almost doubling of the current density at 473 K under an electric field of 8 V/?m (j (T=473 K) = 190 ?A/cm 2, j (T=300 K) = 114 ?A/cm 2) was observed together with a reduction of the turn-on field from 552 V/?m to 482 V/?m. Theoretical model that combines the thermal-field emission for high electric field and the Schottky emission for the low field can satisfactorily account for temperature dependence of current at low as well as at high applied bias. The obtained effect is particularly appealing for the application in micro-gun for THz vacuum tubes. (literal)
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