Experimental and theoretical investigations on a CVD grown thin film of polymeric carbon nitride and its structure

A polymeric carbon nitride thin film has been grown using chemical vapor deposition. The characterization of the material shows that it has the same molecular composition as a formerly synthesized graphitic carbon nitride powder but both substances differ widely in their structural organization. In...

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Veröffentlicht in:Diamond and related materials 2021-01, Vol.111, p.108169, Article 108169
Hauptverfasser: Chamorro-Posada, Pedro, Dante, Roberto C., Vázquez-Cabo, José, Dante, Denisse G., Martín-Ramos, Pablo, Rubiños-López, Óscar, Sánchez-Arévalo, Francisco M.
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Sprache:eng
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Zusammenfassung:A polymeric carbon nitride thin film has been grown using chemical vapor deposition. The characterization of the material shows that it has the same molecular composition as a formerly synthesized graphitic carbon nitride powder but both substances differ widely in their structural organization. In particular, our analyses reveal a paradoxical character in which the thin film sample exhibits simultaneously a high degree of organization in the stacking of the polymer sheets with strong inter-layer interactions, as expected from the growth technique, and a complete lack of crystallinity. A comprehensive theoretical study based on massive semi-empirical quantum chemistry computations has permitted to explain the properties of the material and to elucidate fundamental issues regarding the structural conformation of graphitic carbon nitride. [Display omitted] •A facile thermal CVD synthesis of polymeric carbon nitride thin-films•The sample exhibits paradoxical structural properties.•Massive quantum chemistry computations give better understanding of the material.
ISSN:0925-9635
1879-0062
DOI:10.1016/j.diamond.2020.108169