Abstract We present a method of synthesis of sp-carbon allotropes or carbynes. Linear chains of carbon atoms are obtained from graphite placed in a joint field of laser plasma and arc discharge. The combined action of laser and arc discharge allows to create conditions for the formation of a variety of carbon allotropes, whose structural composition is governed by the interplay of external fields. The method may be employed in the mass production of sp- and sp2- hybridized carbon for the needs of possible applications in micro and nanoelectronics, biosensing.
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