  We synthesize macroscopically long linear carbon chains (carbynes) in a
colloidal solution, then deposit them on a surface. The method is based on the
formation of carbon threads by laser ablation in a colloid accompanied by the
stabilization of resulting linear carbon chains by golden nanoparticles. We
observe the signatures of the polyyne allotrope of carbyne in the
photoluminescence and Raman spectra of the solutions. We deposit the
synthesized carbyne threads on fused quartz glass substrates. The transmission
electron microscopy images of the deposited threads with golden nanoparticles
attached to their ends demonstrate the straight linear parts of the monoatomic
carbon chains varying in length between 8 and 24 carbon atoms. This method
paves the way to fabrication of an ultimate one-dimensional crystal: a
monoatomic carbon wire.
