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Optical Properties of as-Grown and Proton Irradiated ZnO

✍ Scribed by D.J. Brink; H.W. Kunert

Publisher: John Wiley and Sons
Year: 2002
Tongue: English
Weight: 87 KB
Volume: 229
Category: Article
ISSN: 0370-1972
DOI: 10.1002/1521-3951(200201)229:2<859::aid-pssb859>3.0.co;2-k

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✦ Synopsis

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).

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