ULTRAVIOLET AND INFRARED ABSORPTION IN OH(-)-DOPED NAF.
CORNELL UNIV ITHACA N Y MATERIALS SCIENCE CENTER
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The infrared absorption of OH--doped NaF displays two prominent features 1 a broad line at 3728cm attributed to a substitutional OH- ion, and 2 a sharp line spectrum between 3540 and 3660cm by OH--impurity complexes. The assignment of the former is confirmed by the observation of the isotope shift in crystals containing OH- enriched in O18. Upon x-irradiation at room temperature the OH- ions are decomposed and substitutional H- and O2- ions are formed. The H- and O2- ions have ultraviolet absorption bands at 7.9 ev and 8.7 ev respectively. Author
- Solid State Physics