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Issue 41, 2016
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Plasma-chemical synthesis, structure and photoluminescence properties of hybrid graphene nanoflake–BNCO nanowall systems

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Abstract

We describe a simple, efficient plasma-chemical technique for the synthesis of hybrid structures formed by vertically oriented BNCO nanowalls and vertically oriented graphene nanoflakes (BNCONW/GNFs), as well as their structure and photoluminescence properties. The BNCONW/GNF hybrid structures were fabricated by the synthesis of vertically oriented BNCO nanowalls in N2–H2 plasma using the plasma-enhanced hot filament chemical vapour deposition technique, followed by the direct synthesis of vertically oriented graphene nanoflakes on the BNCO nanowalls in a methane environment using a hot filament chemical vapour deposition method, where the B4C compound was used as the boron and carbon source. The results of field emission scanning electron microscopy, transmission electron microscopy, micro-Raman spectroscopy and X-ray photoelectron spectrometry measurements indicated that the BNCONW/GNF hybrid structures were composed of vertically oriented BNCO nanowalls and vertically oriented graphene nanoflakes. The photoluminescence studies of the vertically oriented BNCONW/GNF hybrid structures using a Ramalog system equipped with a 325 nm He–Cd laser demonstrated the possibility to efficiently tune the photoluminescence properties of the BNCONW/GNF structures by growing the graphene nanoflakes on the vertically oriented BNCONWs. Our findings can contribute to the designing of complex hybrid graphene–semiconductor structures suitable for applications in advanced next-generation optoelectronic nanodevices.

Graphical abstract: Plasma-chemical synthesis, structure and photoluminescence properties of hybrid graphene nanoflake–BNCO nanowall systems

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Publication details

The article was received on 06 Sep 2016, accepted on 26 Sep 2016 and first published on 27 Sep 2016


Article type: Paper
DOI: 10.1039/C6TC03871A
Citation: J. Mater. Chem. C, 2016,4, 9788-9797
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    Plasma-chemical synthesis, structure and photoluminescence properties of hybrid graphene nanoflake–BNCO nanowall systems

    B. B. Wang, K. Zheng, D. Gao, I. Levchenko, K. Ostrikov, M. Keidar and S. S. Zou, J. Mater. Chem. C, 2016, 4, 9788
    DOI: 10.1039/C6TC03871A

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