Structure and Electrical Properties of Carbon-Rich Polymer Derived Silicon Carbonitride (SiCN)
Abstract
:1. Introduction
2. Experimental Procedures
2.1. Synthesis
2.2. Characterization
3. Results and Discussion
3.1. Investigation of the Carbon Phase
3.2. Crystallization and Stoichiometry
3.3. Room Temperature Electrical Conductivity and Charge Carrier Transport Mechanism
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Parameter/Temperature | 1100 °C | 1400 °C | 1600 °C |
---|---|---|---|
Lateral crystallite size, La (nm) | 7.66 | 8.54 | 10.08 |
Average continuous graphene length including tortuosity, Leq (nm) | 11.06 | 15.91 | 17.76 |
Inter-defect distance, LD (nm) | 7.58 | 8.00 | 8.69 |
Defect density, nD, × 1011(cm−2) | 7.52 | 6.75 | 5.71 |
I2D/IG ratio, i.e., stacking number of graphene layer, Lc (nm) | 1.7 (≤3 layers) | 1.7 (≤3 layers) | 1.7 (≤3 layers) |
Pyrolysis Temperature | Elemental Composition (wt. %) | N/Si (at. %) | C/Si (at. %) | Carbon Content (at. %) | ||
---|---|---|---|---|---|---|
Si | C | N | ||||
1100 °C | 39.87 | 48.32 | 9.95 | 0.50 | 2.83 | 64.17 |
1400 °C | 41.91 | 52.87 | 4.44 | 0.21 | 2.95 | 70.32 |
1600 °C | 43.61 | 53.37 | 2.43 | 0.11 | 2.86 | 71.60 |
Parameter/Temperature | 1100 °C | 1400 °C | 1600 °C |
---|---|---|---|
Electrical conductivity σdc, (S/cm) | 0.148 | 4.71 | 9.26 |
Carrier density, N (cm−3) | 6.42 × 1018 | 8.45 × 1019 | 1.63 × 1019 |
Carrier mobility, µH, (cm2 V−1 s−1) | 1.45 × 10−1 | 3.52 × 10−1 | 3.55 |
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Adigun, O.D.; Ricohermoso, E., III; Daniyan, A.A.; Umoru, L.E.; Ionescu, E. Structure and Electrical Properties of Carbon-Rich Polymer Derived Silicon Carbonitride (SiCN). Ceramics 2022, 5, 690-705. https://doi.org/10.3390/ceramics5040050
Adigun OD, Ricohermoso E III, Daniyan AA, Umoru LE, Ionescu E. Structure and Electrical Properties of Carbon-Rich Polymer Derived Silicon Carbonitride (SiCN). Ceramics. 2022; 5(4):690-705. https://doi.org/10.3390/ceramics5040050
Chicago/Turabian StyleAdigun, Oluwole Daniel, Emmanuel Ricohermoso, III, Ayodele Abeeb Daniyan, Lasisi Ejibunu Umoru, and Emanuel Ionescu. 2022. "Structure and Electrical Properties of Carbon-Rich Polymer Derived Silicon Carbonitride (SiCN)" Ceramics 5, no. 4: 690-705. https://doi.org/10.3390/ceramics5040050