Synthesis of carbon nanowalls from a single-source metal-organic precursor

• André Giese,
• Sebastian Schipporeit,
• Volker Buck and
• Nicolas Wöhrl

Beilstein J. Nanotechnol. 2018, 9, 1895–1905, doi:10.3762/bjnano.9.181

• acetylacetonate; carbon nanowalls; growth zones; ICP PECVD; metal-organic precursor; Introduction The first report of the synthesis of carbon nanowalls (CNWs), i.e., wall-like carbon nanosheets aligned perpendicular to the substrate, was given by Wu and co-workers [1]. The average thickness of these sheets was

• specific structures can be controlled through the bias voltage and substrate temperature, both parameters that influence the particle energy of the growth precursors. The dependence is indicated schematically in Figure 5. By increasing bias voltage and substrate temperature the growth zones are changed

• from nanorods at low energies, to thorny structures and straight CNWs at medium energies and curled CNWs at high energies. The influence of four different substrate materials on the CNW structure was also investigated. The growth zones for these substrates are shown schematically in Figure 6. It was