Field emission from a patterned organic conducting composite

Kymissis, Ioannis; Akinwande, Akintunde I.
April 2003
Applied Physics Letters;4/7/2003, Vol. 82 Issue 14, p2347
Academic Journal
We report a technique for forming nanopatterned films of organic conducting composites at room temperature. The devices are formed by copying a nonlithographically produced template to form a high-aspect-ratio volcano-like structure. Field emission was studied from these structures, and they were found to provide a field enhancement of about 250. The emission current was imaged on a phosphor screen and preliminary measurements were made of the response to gas exposure, demonstrating that air decreases the emissivity of these devices. This work demonstrates a straightforward room-temperature process for forming field emitters, a field-emitting material system with a conducting oxide, and preliminary evidence that air can degrade field emission through a purely dipolar interaction.


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