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Nikolaev Institute of Inorganic Chemistry

Siberian Branch of Russian Academy of Sciences

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15 апреля 2015 года →  Hot articles

Field emission luminescence of nanodiamonds deposited on the aligned carbon nanotube array

The article of NIIC researches Fedoseeva Yu.V., Bulusheva L.G., Okotrub A.V., Kanygin M.A., Gorodetskiy D.V., Asanov I.P. is published in Scientific Reports (IF 5.078):

Fedoseeva Yu.V., Bulusheva L.G., Okotrub A.V., Kanygin M.A., Gorodetskiy D.V., Asanov I.P., Vyalikh, D.V., Puzyr A.P., Bondar V.S. «Field emission luminescence of nanodiamonds deposited on the aligned carbon nanotube array» Sci. Rep. 2015, 5, P. 9379–9386 DOI: 10.1038/srep09379

Detonation nanodiamonds (NDs) were deposited on the surface of aligned carbon nanotubes (CNTs) by immersing a CNT array in an aqueous suspension of NDs in dimethylsulfoxide (DMSO). The structure and electronic state of the obtained CNT–ND hybrid material were studied using optical and electron microscopy and Infrared, Raman, X-ray photoelectron and near-edge X-ray absorption fine structure spectroscopy. A non-covalent interaction between NDs and CNT and preservation of vertical orientation of CNTs in the hybrid were revealed. We showed that current-voltage characteristics of the CNT–ND cathode are changed depending on the applied field; below ~3 V/µm they are similar to those of the initial CNT array and at the higher field they are close to the ND behavior. Involvement of the NDs in field emission process resulted in blue luminescence of the hybrid surface at an electric field higher than 3.5 V/µm. Photoluminescence measurements showed that the NDs emit blue-green light, while blue luminescence prevails in the CNT–ND hybrid. The quenching of green luminescence was attributed to a partial removal of oxygen-containing groups from the ND surface as the result of the hybrid synthesis.

Structure and electroluminescence of the hybrid material based on carbon nanotubes and detonation nanodiamonds

Structure and electroluminescence of the hybrid material based on carbon nanotubes and detonation nanodiamonds

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