UV laser photodeposition of carbon nitride thin films from gaseous precursors

Chemical characterization of plasma-polymerized films from acetylene and nitrogen-containing mixtures and their ethanol vapor sensitivity

“…2c). Such morphology is quite similar to the SEM image obtained from the acetylene and acetylene/ammonia mixtures by the laser-CVD photo-polymerization (Pola et al, 2002;Crunteanu et al, 2000). However, it is different from the SEM image of a freestanding film with high crystallinity and fibrilar structure obtained from the Ziegler-Natta catalyst system (Shirakawa and Ikeda, 1971).…”

“…The UV laser polymerization from acetylene and ammonia mixtures can produce carbon nitride thin films with high hardness, chemical, and thermal stability (Liu and Cohen, 1990;Crunteanu et al, 2000). Besides, polyacetylenes or substituted polyacetylenes have been shown to be humidity sensitive materials (Li and Yang, 2002a, b;Bearzotti et al, 2001), but few reports have been found for applying plasmapolymerized films from acetylene and/or mixtures to humidity or other chemical sensors.…”