Structural, optical, and luminescence properties of ZnO:Ga optical scintillation ceramic
(2018) In Journal of Optical Technology (A Translation of Opticheskii Zhurnal) 85(11). p.729-737- Abstract
This paper discusses the characteristics of ZnO and ZnO:Ga ceramics fabricated by uniaxial hot pressing. The short-wavelength transmission limit of zinc oxide ceramics is in the 370-nm region; the long-wavelength limit is determined by the free-charge-carrier concentration and lies in the interval from 5 to 9 μm. The total transmittance of such ceramics in the visible and near-IR regions is about 70% when the sample is 0.5 mm thick. The luminescence spectrum is represented by a broad emission band with maximum at 580 nm, having a defect nature. The introduction of 0.03–0.1 mass % gallium into the zinc oxide structure inhibits grain growth and increases the free-charge-carrier concentration to 3.44 × 1019 cm−3. As... (More)
This paper discusses the characteristics of ZnO and ZnO:Ga ceramics fabricated by uniaxial hot pressing. The short-wavelength transmission limit of zinc oxide ceramics is in the 370-nm region; the long-wavelength limit is determined by the free-charge-carrier concentration and lies in the interval from 5 to 9 μm. The total transmittance of such ceramics in the visible and near-IR regions is about 70% when the sample is 0.5 mm thick. The luminescence spectrum is represented by a broad emission band with maximum at 580 nm, having a defect nature. The introduction of 0.03–0.1 mass % gallium into the zinc oxide structure inhibits grain growth and increases the free-charge-carrier concentration to 3.44 × 1019 cm−3. As the gallium concentration increases in the range 0.05–0.1 mass % in a ceramic of composition ZnO:Ga, the defect luminescence band is suppressed and a characteristic exciton luminescence is formed with a maximum corresponding to 389 nm and a damping time constant of 1.1 ns.
(Less)
- author
- Gorokhova, E. I. ; Eron’Ko, S. B. ; Oreshchenko, E. A. ; Sandulenko, A. V. ; Rodnyi, P. A. ; Chernenko, K. A. LU ; Venevtsev, I. D. ; Kul’Kov, A. M. ; Muktepavela, Faina and Boutachkov, Plamen
- organization
- publishing date
- 2018
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Optical Technology (A Translation of Opticheskii Zhurnal)
- volume
- 85
- issue
- 11
- pages
- 9 pages
- publisher
- The Optical Society
- external identifiers
-
- scopus:85069433451
- ISSN
- 1070-9762
- DOI
- 10.1364/JOT.85.000729
- language
- English
- LU publication?
- yes
- id
- 295c9862-4a92-4051-9e50-42a0ea7b45b5
- date added to LUP
- 2022-04-01 08:26:40
- date last changed
- 2022-04-17 01:22:19
@article{295c9862-4a92-4051-9e50-42a0ea7b45b5, abstract = {{<p>This paper discusses the characteristics of ZnO and ZnO:Ga ceramics fabricated by uniaxial hot pressing. The short-wavelength transmission limit of zinc oxide ceramics is in the 370-nm region; the long-wavelength limit is determined by the free-charge-carrier concentration and lies in the interval from 5 to 9 μm. The total transmittance of such ceramics in the visible and near-IR regions is about 70% when the sample is 0.5 mm thick. The luminescence spectrum is represented by a broad emission band with maximum at 580 nm, having a defect nature. The introduction of 0.03–0.1 mass % gallium into the zinc oxide structure inhibits grain growth and increases the free-charge-carrier concentration to 3.44 × 10<sup>19</sup> cm<sup>−3</sup>. As the gallium concentration increases in the range 0.05–0.1 mass % in a ceramic of composition ZnO:Ga, the defect luminescence band is suppressed and a characteristic exciton luminescence is formed with a maximum corresponding to 389 nm and a damping time constant of 1.1 ns.</p>}}, author = {{Gorokhova, E. I. and Eron’Ko, S. B. and Oreshchenko, E. A. and Sandulenko, A. V. and Rodnyi, P. A. and Chernenko, K. A. and Venevtsev, I. D. and Kul’Kov, A. M. and Muktepavela, Faina and Boutachkov, Plamen}}, issn = {{1070-9762}}, language = {{eng}}, number = {{11}}, pages = {{729--737}}, publisher = {{The Optical Society}}, series = {{Journal of Optical Technology (A Translation of Opticheskii Zhurnal)}}, title = {{Structural, optical, and luminescence properties of ZnO:Ga optical scintillation ceramic}}, url = {{http://dx.doi.org/10.1364/JOT.85.000729}}, doi = {{10.1364/JOT.85.000729}}, volume = {{85}}, year = {{2018}}, }