Bulletin of materials science | |
Structural morphology of amorphous conducting carbon film | |
V Ganesan1  V Prasad2  P N Vishwakarma2  S V Subramanyam2  | |
[1] Inter University Consortium for DAE Facilities, Indore 452 017, India$$Inter University Consortium for DAE Facilities, Indore 452 017, IndiaInter University Consortium for DAE Facilities, Indore 452 017, India$$;Department of Physics, Indian Institute of Science, Bangalore 560 012, India$$Department of Physics, Indian Institute of Science, Bangalore 560 012, IndiaDepartment of Physics, Indian Institute of Science, Bangalore 560 012, India$$ | |
关键词: Carbon; amorphous; AFM; FFT; X-ray diffraction.; | |
DOI : | |
学科分类:材料工程 | |
来源: Indian Academy of Sciences | |
【 摘 要 】
Amorphous conducting carbon films deposited over quartz substrates were analysed using X-ray diffraction and AFM technique. X-ray diffraction data reveal disorder and roughness in the plane of graphene sheet as compared to that of graphite. This roughness increases with decrease in preparation temperature. The AFM data shows surface roughness of carbon films depending on preparation temperatures. The surface roughness increases with decrease in preparation temperature. Also some nucleating islands were seen on the samples prepared at 900°C, which are not present on the films prepared at 700°C. Detailed analysis of these islands reveals distorted graphitic lattice arrangement. So we believe these islands to be nucleating graphitic. Power spectrum density (PSD) analysis of the carbon surface indicates a transition from the nonlinear growth mode to linear surface-diffusion dominated growth mode resulting in a relatively smoother surface as one moves from low preparation temperature to high preparation temperature. The amorphous carbon films deposited over a rough quartz substrate reveal nucleating diamond like structures. The density of these nucleating diamond like structures was found to be independent of substrate temperature (700�??900°C).
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912010228667ZK.pdf | 286KB | download |