Emission characteristics of linear-chain carbon fibers |
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| Authors: | Yu G Korobova V G Babaev V V Khvostov M B Guseva |
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| Institution: | (1) Department of Physical Electronics, Faculty of Physics, Moscow State University, Leninskie gory, Moscow, 119992, Russia |
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| Abstract: | A complex investigation of the structure and emission characteristics of linear-chain carbon is accomplished. This material is demonstrated to be stable at high temperature (700°C), and the thermal emission is shown to be governed by the Schottky mechanism with the material characteristics reaching record-breaking values: an emission threshold of 800 V/mm and a thermoionic work function of 0.43 eV. These values are found to arise during sp 1 carbon crystallization and vanish after its graphitization. The very low value of the work function of linear-chain carbon is theoretically substantiated. |
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