Schematic diagram showing diamond synthesis in two steps; (i) adamantane deposited on silicon surface by hotplate method, and (ii) diamond growth by MPCVD.
(a) Optical image, inset: high-magnification image of the adamantane, (b) XRD pattern of adamantane, and (c) Raman spectrum of the adamantane coating layer on Si (100) substrate.
Plan-view SEM images and micro-Raman spectra after growth for deposition times of (a) and (c) 15 min, (b) and (d) 30 min, and (c) and (f) 45 min.
Raman spectra of adamantane-coated Si substrates after 15, 30, and 45 min deposition.
XRD patterns of adamantane-coated Si substrates after 15, 30, and 270 min deposition.
Cross-sectional SEM images of adamantane-coated Si substrates treated with various times: (a) 15 min, (b) 30 min, and (c) 45 min.
SEM images of deposited diamond in (a) plan–view and (b) cross-section view, inset: high-magnification image of interlayer, (c) Raman spectrum after synthesized diamond (growth time 270 min) on Si surface pretreated with adamantane.
(a) AFM and (b) corresponding Raman spectrum of plane region where we did not observe microdiamond film after 270 min diamond growth.
The XPS survey spectrum of diamond/Si, inset: high-resolution spectrum of the region.
Emission current density as a function of applied electrical field for diamond plates and inset corresponding F–N plot.
Article metrics loading...
Full text loading...