High efficiency surface-conducted field emission from a ZnO nanotetrapod and MgO nanoparticle composite emitter

Display R&D Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People’s Republic of China
Applied Physics Letters (Impact Factor: 3.52). 01/2009; DOI: 10.1063/1.3046785
Source: IEEE Xplore

ABSTRACT We report a surface-conducted field emitter made of a ZnO nanotetrapod and MgO nanoparticle composites with a high emission efficiency (∼100%) and current (3.77 mA at a gate voltage of 100 V and anode voltage of 1800 V). The fabrications of the triode structure with a 10×10 pixel array and corresponding driving method have been proposed. The electron trajectories are simulated according to the structure. Individual pixel addressing can be achieved by a sequential scanning mode. Display of moving images employing this triode structure was demonstrated. The results are of significance to the development of ZnO based triode field emitters.

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