Vibrational Spectroscopy of Na–H Complexes in ZnO
نویسندگان
چکیده
Sodium acceptors were diffused into ZnO bulk single crystals to a depth of 1 lm, with a near-surface concentration of 10 cm . An O–H local vibrational mode (LVM) was observed at 3304 cm , at a temperature of 9 K, in hydrogenated samples. The LVM is attributed to an O–H bond-stretching mode adjacent to a Na acceptor. When deuterium substitutes for hydrogen, a peak is observed at 2466 cm . The isotopic frequency ratio is similar to values found in other hydrogen complexes. In the deuterated sample, a sideband at 2461 cm 1 is attributed to a Fermi resonance.
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