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Title: Effective hybrid graphene/carbon nanotubes field emitters by electrophoretic deposition
Authors: Koh, A.T.T.
Chen, T. 
Pan, L.
Sun, Z.
Chua, D.H.C. 
Issue Date: 7-May-2013
Citation: Koh, A.T.T., Chen, T., Pan, L., Sun, Z., Chua, D.H.C. (2013-05-07). Effective hybrid graphene/carbon nanotubes field emitters by electrophoretic deposition. Journal of Applied Physics 113 (17) : -. ScholarBank@NUS Repository.
Abstract: Hybrid graphene and carbon nanotube (CNT) field emitters were fabricated with electrophoretic deposition (EPD). The combination of both materials was used to improve the turn-on field for pure carbon nanotubes emitters and the reliability of pure graphene emitters deposited by the same method. The CNT was envisioned to hold down the graphene flakes, like a safety belt or Velcro, at high voltages to prevent an early short circuit at relatively low voltages. These hybrid emitters were studied for their field emission performance in relation to the EPD deposition duration. It was observed that the emitters performed better when the EPD duration was increased due to the increase in the amount and density of graphene flakes. Possible reasons for the improvement of field emission performance were suggested. The roles of graphene and CNT in these hybrid emitters were also discussed. © 2013 AIP Publishing LLC.
Source Title: Journal of Applied Physics
ISSN: 00218979
DOI: 10.1063/1.4804238
Appears in Collections:Staff Publications

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