Journal
MATERIALS LETTERS
Volume 61, Issue 14-15, Pages 3056-3058Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2006.10.074
Keywords
crystal growth; optical materials and properties
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Single-crystal ZnWO4 doped with nickel ion has been grown by the Czochralski technique. The XRD is investigated and the absorption spectrum as well as the emission spectrum is measured. Along crystallographic axes, refractive indices are presented. In octahedral approximation, using the Tanaba-Sugano theory, crystal field split is discussed, and so the Racah parameter B and crystal field parameters 10Dq are calculated. Compared with pure ZnWO4 (similar to 4 eV), the band edge obtained was 3.7 eV for ZnWO4:Ni2+. (c) 2006 Elsevier B.V. All rights reserved.
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