title: Transparent and flexible field electron emitters based on the conical nanocarbon structures.
abstract: The fabrication of conical nanocarbon structures (CNCSs) on a transparent and flexible nafion substrate at room temperature using an ion irradiation technique and their application toward field emission displays (FEDs) have been demonstrated. The main advantage of this technique is that CNCSs can be fabricated directly on the transparent substrate while retaining the transparency of the substrate. A scanning electron microscopy (SEM) image revealed that the sputtered surface was entirely covered with CNCSs with a calculated numerical density of 6 x 10(6) /mm(2). Such nafion based CNCSs have proved to be an effective electron emitter with turn-on and threshold fields of 6.1 and 9.5 V/mum, respectively. The field enhancement factor was estimated to be 1020 from the Fowler-Nordheim (F-N) plot. Thus the room temperature fabricated CNCSs based on transparent and flexible nafion substrate would be very promising for future flexible (roll-up) and transparent FEDs.
authors.affiliation: Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, 466-8555, Japan.
authors.forename: Pradip
authors.initials: P
authors.lastname: Ghosh
authors.forename: M Zamri
authors.initials: MZ
authors.lastname: Yusop
authors.forename: Syunsaku
authors.initials: S
authors.lastname: Satoh
authors.forename: Munisamy
authors.initials: M
authors.lastname: Subramanian
authors.forename: Akari
authors.initials: A
authors.lastname: Hayashi
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Hayashi
authors.forename: Masaki
authors.initials: M
authors.lastname: Tanemura