Abstract
Vacuum-ultraviolet (VUV) absorption cross sections of hydrogenated and deuterated silanol groups (SiOX, where or D) as well as interstitial water molecules in amorphous were determined between photon energies of 7 and . The absorption bands for the deuterated species are blueshifted compared to those for the hydrogenated ones by as a result of a decrease in the zero-point energy associated with the OX groups. The VUV absorption of interstitial below is blueshifted with respect to that of trapped in rare-gas solids due to the contribution of hydrogen bonding, and is to 2 orders of magnitude stronger than that of SiOX groups.
- Received 19 July 2005
DOI:https://doi.org/10.1103/PhysRevB.72.214112
©2005 American Physical Society