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

Erdem, Emre and Mass, Valentina and Gembus, Armin and Schulz, Armin and Liebau-Kunzmann, Verena and Fasel, Claudia and Riedel, Ralf and Eichel, Rüdiger-A. (2009):
Defect structure in lithium-doped polymer-derived SiCN ceramics characterized by Raman and electron paramagnetic resonance spectroscopy.
11, In: Physical Chemistry Chemical Physics, (27), Royal Society of Chemistry, pp. 5628-5633, ISSN 1463-9076, [Online-Edition: http://dx.doi.org/10.1039/b822457a],
[Article]

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.

Item Type: Article
Erschienen: 2009
Creators: Erdem, Emre and Mass, Valentina and Gembus, Armin and Schulz, Armin and Liebau-Kunzmann, Verena and Fasel, Claudia and Riedel, Ralf and Eichel, Rüdiger-A.
Title: Defect structure in lithium-doped polymer-derived SiCN ceramics characterized by Raman and electron paramagnetic resonance spectroscopy
Language: English
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.

Journal or Publication Title: Physical Chemistry Chemical Physics
Volume: 11
Number: 27
Publisher: Royal Society of Chemistry
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis > Subproject A4: Novel functional ceramics using anionic substitution in oxidic systems
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B1: EPR-Investigations of defects in ferroelectric ceramic material
Date Deposited: 04 Aug 2011 12:00
Official URL: http://dx.doi.org/10.1039/b822457a
Additional Information:

SFB 595 Cooperation A4, B1

Identification Number: doi:10.1039/b822457a
Funders: The research has been financially supported by the DFG centre of excellence 595 ‘ Electrical Fatigue in Functional Materials ’.
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