Synthesis of Diamond from Carbon Disulfide in Hydrogen

The synthesis of diamond has been accomplished from carbon disulfide (CS 2 ) in hydrogen (H 2 ) using tungsten hot filament chemical vapor deposition. A continuous layer was deposited on silicon and characterized using Raman spectroscopy, X‐ray diffraction (XRD), and scanning electron microscopy. The polycrystalline film exhibited a sharp Raman peak at 1331.4 cm −1 and a broad low–intensity peak at approximately 1500 cm −1 . X–ray diffraction analysis showed peaks corresponding to the {111}, {220}, and {311} reflections of diamond with evidence of (110) texture. Diamond growth from CS 2 in H 2 was observed to be highly faceted by scanning electron microscopy.