This work investigates the growth of B-C-N layers by Chemical Vapor Deposition using methylamine borane (MeAB) as single-source precursor. MeAB has been synthesized and characterized, paying particular attention to the analysis of its thermolysis products, which are the gaseous precursors for B-C-N growth. Samples have been grown on Cu foils and transferred onto different substrates for their morphological, structural, chemical, electronic and optical characterizations. The results of these characterizations indicate a segregation of h-BN and Graphene-like (Gr) domains. However, there is an important presence of B and N interactions with C at the Gr borders, and of C interacting at the h-BN-edges, respectively, in the obtained nano-layers. In particular, there is significant presence of C-N bonds, at Gr/h-BN borders and in the form of N doping of Gr domains. The overall B:C:N contents in the layers is close to 1:3:1.5. A careful analysis of the optical bandgap determination of the obtained B-C-N layers is presented, discussed and compared with previous seminal works with samples of similar composition.
Chemical vapor deposition growth of boron-carbon-nitrogen layers from methylamine borane thermolysis products / Leardini, Fabrice; Flores, Eduardo; Galvis, Andres R; Jimenez-Ferrer, Isabel; Ares, Jose-Ramon; Sanchez, Carlos; Molina, Pablo; van der Meulen, Herko P; Gomez-Navarro, Cristina; Lopez-Polin, Guillermo; Urbanos, Fernando J; Granados, Daniel; Garcia-Garcia, F. Javier; Demirci, Umit B; Yot, Pascal G; Mastrangelo, Filippo; Betti, Maria Grazia; Mariani, Carlo. - In: NANOTECHNOLOGY. - ISSN 0957-4484. - STAMPA. - (2017). [10.1088/1361-6528/aa9c07]
Chemical vapor deposition growth of boron-carbon-nitrogen layers from methylamine borane thermolysis products
Leardini, Fabrice;Betti, Maria Grazia;Mariani, Carlo
2017
Abstract
This work investigates the growth of B-C-N layers by Chemical Vapor Deposition using methylamine borane (MeAB) as single-source precursor. MeAB has been synthesized and characterized, paying particular attention to the analysis of its thermolysis products, which are the gaseous precursors for B-C-N growth. Samples have been grown on Cu foils and transferred onto different substrates for their morphological, structural, chemical, electronic and optical characterizations. The results of these characterizations indicate a segregation of h-BN and Graphene-like (Gr) domains. However, there is an important presence of B and N interactions with C at the Gr borders, and of C interacting at the h-BN-edges, respectively, in the obtained nano-layers. In particular, there is significant presence of C-N bonds, at Gr/h-BN borders and in the form of N doping of Gr domains. The overall B:C:N contents in the layers is close to 1:3:1.5. A careful analysis of the optical bandgap determination of the obtained B-C-N layers is presented, discussed and compared with previous seminal works with samples of similar composition.File | Dimensione | Formato | |
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