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Optical Properties of as‐Grown and Proton Irradiated ZnO
Author(s) -
Brink D.J.,
Kunert H.W.
Publication year - 2002
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200201)229:2<859::aid-pssb859>3.0.co;2-k
Subject(s) - photoluminescence , materials science , proton , spectroscopy , excited state , irradiation , line (geometry) , optoelectronics , band gap , atomic physics , molecular physics , chemistry , physics , nuclear physics , geometry , mathematics , quantum mechanics
Conventional photoluminescence spectroscopy (PL) shows several high energy optical transitions within the region 3.072 to 3.4345 eV from as‐grown ZnO excited with a 257 nm UV line. Performing inelastic light scattering experiments (ILS), we probed some previously reported modes. Proton implantation caused drastic changes in the excitonic region and generates a broad band centered at about 650 nm (1.9 eV) In addition, we observed from both sides of the ZnO sample implantation‐induced high‐energy vibrational modes centered at about 1350 and 1600 cm —1 (0.167 and 0.198 eV, respectively).