Taguchi method is for the first time applied to optimize the synthesis of graphene films by copper-catalyzed decomposition of ethanol. In order to find the most appropriate experimental conditions for the realization of thin high-grade films, six experiments suitably designed and performed. The influence of temperature (1000-1070 C) and synthesis duration (1-30 min) and hydrogen flow (0-100 sccm) on the number of graphene layers and defect density in the graphitic lattice was ranked by monitoring the intensity of the 2D- and D-bands relative to the G-band in the Raman spectra. After critical examination and adjusting of the conditions predicted to give optimal results, a continuous film consisting of 2-4 nearly defect-free graphene layers was obtained.
Taguchi optimized synthesis of graphene films by copper catalyzed ethanol decomposition / Santangelo, S.; Messina, G; Malara, A.; Lisi, N.; Dikonimos, T.; Capasso, A.; Ortolani, L.; Morandi, V.; Faggio, G.. - In: DIAMOND AND RELATED MATERIALS. - ISSN 0925-9635. - 41:(2014), pp. 73-78. [10.1016/j.diamond.2013.11.006]
Taguchi optimized synthesis of graphene films by copper catalyzed ethanol decomposition
Santangelo S.
;Messina G;Malara A.;Faggio G.
2014-01-01
Abstract
Taguchi method is for the first time applied to optimize the synthesis of graphene films by copper-catalyzed decomposition of ethanol. In order to find the most appropriate experimental conditions for the realization of thin high-grade films, six experiments suitably designed and performed. The influence of temperature (1000-1070 C) and synthesis duration (1-30 min) and hydrogen flow (0-100 sccm) on the number of graphene layers and defect density in the graphitic lattice was ranked by monitoring the intensity of the 2D- and D-bands relative to the G-band in the Raman spectra. After critical examination and adjusting of the conditions predicted to give optimal results, a continuous film consisting of 2-4 nearly defect-free graphene layers was obtained.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.