Detection of SH and CS radicals by cavity ringdown spectroscopy in a hot filament chemical vapor deposition environment

The SH and CS radicals produced during sulfur-assisted hot filament chemical vapor deposition (HFCVD) of nano-structured carbon-based materials were studied by cavity ringdown spectroscopy (CRDS) by detecting the A(0) ← X(0) transition near 323 nm for SH, and 259 nm for CS, respectively.