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- Title
Influence of Mg content on defect-related luminescence of undoped and doped wurtzite MgZnO ceramics.
- Authors
Markevich, I. V.; Stara, T. R.; Bondarenko, V. O.
- Abstract
Undoped as well as Li-, Ag-, Cu- and Zn-doped MgxZn1-xO ceramics with x = 0-0.20 were sintered at 1000 °C. Defect-related photoluminescence (PL) and PL excitation spectra were measured at room temperature in 400-800 nm and 250-400 nm spectral ranges, accordingly. Two types of PL bands were observed: i) the bands, spectral positions of which were not influenced by the Mg content (Cu-related as well as selfactivated orange and red ones); ii) the bands, spectral positions of which exhibited some blueshift with increasing Mg content (Li- and Ag-related and self-activated green ones). It has been shown that used doping gives the possibility to obtain the phosphor with intense visible emission within the blue-yellow spectral range.
- Subjects
MAGNESIUM compounds; POINT defects; DOPING agents (Chemistry); MAGNESIUM alloys; CERAMIC materials; ENERGY bands
- Publication
Semiconductor Physics, Quantum Electronics & Optoelectronics, 2015, Vol 18, Issue 3, p344
- ISSN
1560-8034
- Publication type
Article
- DOI
10.15407/spqeo18.03.344