Development of CoFe2O4 scaffolded reduced graphene oxide/carbon nanotube emitter for field emission application

K Hareesh,Sachin R Rondiya,S.D Dhole,M.A More,D.M Phase

doi:10.1016/j.optmat.2022.113158

Development of CoFe2O4 scaffolded reduced graphene oxide/carbon nanotube emitter for field emission application

K Hareesh, Sachin R Rondiya + Show 3 more

https://doi.org/10.1016/j.optmat.2022.113158

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Journal: Optical Materials	Publication Date: Oct 25, 2022
Citations: 2

Affiliation: Manipal Academy of Higher Education, Indian Institute of Science Bangalore, Savitribai Phule Pune University, UGC DAE Consortium for Scientific Research

#Good Emission Current Stability #CoFe2O4 Nanoparticles + Show 8 more

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Abstract

The field emission (FE) characteristics of CoFe2O4/rGO/CNT (CGC) emitter is reported by comparing it with that of CoFe2O4/rGO (CG), CoFe2O4/CNT (CC), rGO/CNT (GC) and individual emitter. Among them, current density was high for CGC emitter i.e. 3.329 mA cm−2 for applied field of 5.4 V μm−1 as well as a good emission current stability. These superior FE characteristics of CGC emitter is due to the decreased bandgap as well as work function and, due to the sharp edges provided by CNTs and CoFe2O4 nanoparticles which results in easy electron liberation. A detailed mechanism for enhanced FE performance has been proposed based on obtained results.

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