Surface and bulk states of disordered carbon and their optical properties

Nikolay N. Melnik; T. N. Zavaritskaya; V. A. Karavanski

doi:10.1117/12.569808

20 July 2004 Surface and bulk states of disordered carbon and their optical properties

Nikolay N. Melnik, T. N. Zavaritskaya, V. A. Karavanski

Proceedings Volume 5507, XVI International Conference on Spectroscopy of Molecules and Crystals; (2004) https://doi.org/10.1117/12.569808
Event: XVI International Conference on Spectroscopy of Molecules and Crystals, 2003, Sevastopol, Ukraine

Abstract

Samples of disordered carbon obtained by different technologies (carbon plasma deposition, irradiation, anodic etching etc.) by Raman scattering (RS) and photoluminescence (PL) were studied. The common spectral features for these cardinally different technologies preparation samples are found. The following conclusion from the obtained data are made: • In some samples of disordered carbon there are carbon nanoparticles, which consist of a core containing sp² bonds and a shell containing sp³ bonds. Vibrations states of these bonds interact with each other. These nanoparticles have a strong photoluminescence in visible range of a spectrum; • On a surface of disordered carbon there can be metastable structural formations as the torn off chains. Lifetime of such structures is approximately half-year. Such structures most frequently arise on the irradiated surface.

Citation Download Citation

Nikolay N. Melnik, T. N. Zavaritskaya, and V. A. Karavanski "Surface and bulk states of disordered carbon and their optical properties", Proc. SPIE 5507, XVI International Conference on Spectroscopy of Molecules and Crystals, (20 July 2004); https://doi.org/10.1117/12.569808

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