Thermal desorption of CF 3Br induced by resonant infrared absorption
Abstract
A thin film of CF 3Br is condensed on a cold Ag or ZnSe surface (≈ 110 K) and is subsequently desorbed under resonant absorption of CW CO 2 laser radiation. The condensation process is determined by the surface temperature. The desorption is monitored as a transient pressure peak. The maximum desorption rate is proportional to the film thickness and to the resonantly absorbed infrared laser power. The desorption process is of thermal nature and determined by the thermal properties of the Ag or ZnSe substrate. The wavelength dependence varies strongly with surface temperature and film thickness.
- Publication:
-
Surface Science
- Pub Date:
- February 1986
- DOI:
- 10.1016/0039-6028(86)90526-1
- Bibcode:
- 1986SurSc.166....1V