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Issue 27, 2009
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Defect structure in lithium-doped polymer-derived SiCN ceramics characterized by Raman and electron paramagnetic resonance spectroscopy

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Abstract

Lithium-doped polymer-derived silicon carbonitride ceramics (SiCN : Li) synthesized at various pyrolysis temperatures, have been investigated by means of multifrequency and multipulse electron paramagnetic resonance (EPR) and Raman spectroscopy in order to determine different defect states that may impact the materials electronic properties. In particular, carbon- and silicon-based ‘dangling bonds’ at elevated, as well as metallic networks containing Li0 in the order of 1 μm at low pyrolysis temperatures have been observed in concentrations ranging between 1014 and 1017 spins mg−1.

Graphical abstract: Defect structure in lithium-doped polymer-derived SiCN ceramics characterized by Raman and electron paramagnetic resonance spectroscopy

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Publication details

The article was received on 16 Dec 2008, accepted on 25 Mar 2009 and first published on 05 May 2009


Article type: Paper
DOI: 10.1039/B822457A
Phys. Chem. Chem. Phys., 2009,11, 5628-5633

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    Defect structure in lithium-doped polymer-derived SiCN ceramics characterized by Raman and electron paramagnetic resonance spectroscopy

    E. Erdem, V. Mass, A. Gembus, A. Schulz, V. Liebau-Kunzmann, C. Fasel, R. Riedel and Rüdiger-A. Eichel, Phys. Chem. Chem. Phys., 2009, 11, 5628
    DOI: 10.1039/B822457A

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