Luminescence study of ZnGa2O4: Co24
β Scribed by T. Abritta; F.H. Blak
- Book ID
- 107797867
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 200 KB
- Volume
- 48-49
- Category
- Article
- ISSN
- 0022-2313
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A photoacoustic study of cobalt-doped ZnGasO, and MgGasO, is presented. The observed visible bands are assigned to the spin-allowed electronic transition 4A2 ( 4F) --t4T, (4P). Comparison between the radiationless relaxation time, observed by the photoacoustic method, and the fluorescence decay time
Structural and optical properties of ZnGa 2 O 4 :Ge 4ΓΎ and ZnGa 2 O 4 :Ge 4ΓΎ , Li ΓΎ , Mn 2ΓΎ phosphors were investigated by using X-ray diffraction (XRD), photoluminescence (PL) and cathodoluminescence (CL) measurements. The XRD patterns show that Ge-doped ZnGa 2 O 4 has a spinel phase and its lattic