Title: Fabrication and Characterization of Q-Carbon Field Emission Device

Authors: Ariful Haque, and Jagdish Narayan

DOI: 10.33599/nasampe/s.19.1560

Abstract: High-quality robust field emitting devices with stable emission over a long period of time are desirable for a wide range of applications. In this study, we focused on the design and fabrication processes, characterization, and field emission properties of large area Q-carbon (quenched carbon) composite thin films. The Fowler–Nordheim tunneling model is appropriate to explain the electron field emission (FE) mechanism. The microstructure and the morphology of those films were characterized by the Raman spectroscopy and the high-resolution scanning electron microscopy. The FE measurements on the Q-carbon cathode film show excellent field emission characteristics. The low turn-on field (as low as 2.4 V/μm), a high emission current density at a low applied electric field, and an excellent FE stability are the main features of the Q-carbon field emission devices. This work signifies that Q-carbon composite film can be used as an excellent emitter, which opens new possibilities for this novel material to be used in practical devices. Keywords: Field emission device, Q-carbon, pulsed laser annealing, and thin film.

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Conference: SAMPE 2019 - Charlotte, NC

Publication Date: 2019/05/20

SKU: TP19--1560

Pages: 12

Price: FREE