Local vibrational mode spectroscopy of nitrogen-hydrogen complex in ZnSe

Using infrared and Raman spectroscopy, we have observed two local vibrational modes related to H bonded to N acceptors in ZnSe samples grown by metalorganic vapor phase epitaxy. We assign the new mode seen at 3194 cm−1 to a N—H stretching vibrational mode and tentatively assign the mode found at 783 cm−1 to a N—H wagging vibrational mode. Polarized Raman spectroscopy was used to determine that the symmetry of the defect complex is C3 v, which implies that the H atom is in either a bonding or antibonding position.