title: A carbon fiber-ZnS nanocomposite for dual application as an efficient cold cathode as well as a luminescent anode for display technology.
abstract: In the current work we present a simple technique to develop a carbon nanofiber (CNF)/zinc sulfide (ZnS) composite material for excellent FED application. CNFs and ZnS microspheres were synthesized by following a simple thermal chemical vapor deposition and hydrothermal procedure, respectively. A rigorous chemical mixture of CNF and ZnS was prepared to produce the CNF-ZnS composite material. The cathodo-luminescence intensity of the composite improved immensely compared to pure ZnS, also the composite material showed better field emission than pure CNFs. For pure CNF the turn-on field was found to be 2.1 V μm(-1) whereas for the CNF-ZnS composite it reduced to a value of 1.72 V μm(-1). Altogether the composite happened to be an ideal element for both the anode and cathode of a FED system. Furthermore, simulation of our CNF-ZnS composite system using the finite element modeling method also ensured the betterment of field emission from CNF after surface attachment of ZnS nanoclusters.
authors.affiliation: School of Materials Science and Nanotechnology, Jadavpur University, Kolkata 700 032, India. kalyan_chattopadhyay@yahoo.com.
authors.forename: Arunava
authors.initials: A
authors.lastname: Jha
authors.forename: Sudipta Kumar
authors.initials: SK
authors.lastname: Sarkar
authors.forename: Dipayan
authors.initials: D
authors.lastname: Sen
authors.forename: K K
authors.initials: KK
authors.lastname: Chattopadhyay