Defect levels in BaMgAl10O17 and SrMgAl 10O17: Theoretical and experimental approach

H. Onuma, H. Tanno, R. Sahnoun, Michihisa Koyama, H. Tsuboi, N. Hatakeyama, A. Endou, H. Takaba, M. Kubo, C. A. Del Carpio, H. Kajiyama, T. Shinoda, A. Miyamoto

Research output: Contribution to conference › Paper

Abstract

In this study, we investigated the defect levels in the BaMgAl 10O17 and SrMgAl10O17 both theoretically and experimentally. The thermo-luminescence spectra showed the existences of the shallow and deep defect levels in the BaMgAl 10O17 and SrMgAl10O17 phosphors. The calculation results suggested that the structural defects such as oxygen vacancies would work as the trap for excited carrier. Moreover, the calculated binding energies and the formation energies of an oxygen vacancy suggest that the SrMgA10O17 and conduction plane can be degradated.

Original languageEnglish
Pages2143-2146
Number of pages4
Publication statusPublished - Dec 1 2007
Event14th International Display Workshops, IDW '07 - Sapporo, Japan
Duration: Dec 5 2007 → Dec 5 2007

Other

Other14th International Display Workshops, IDW '07
CountryJapan
CitySapporo
Period12/5/07 → 12/5/07

Fingerprint

Oxygen vacancies
Oxygen
Defects
defects
Luminescence
Thermoluminescence
oxygen
energy of formation
thermoluminescence
Binding energy
Phosphors
phosphors
binding energy
traps
conduction

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Radiology Nuclear Medicine and imaging
  • Atomic and Molecular Physics, and Optics

Cite this

Onuma, H., Tanno, H., Sahnoun, R., Koyama, M., Tsuboi, H., Hatakeyama, N., ... Miyamoto, A. (2007). Defect levels in BaMgAl10O17 and SrMgAl 10O17: Theoretical and experimental approach. 2143-2146. Paper presented at 14th International Display Workshops, IDW '07, Sapporo, Japan.

Defect levels in BaMgAl10O17 and SrMgAl 10O17 : Theoretical and experimental approach. / Onuma, H.; Tanno, H.; Sahnoun, R.; Koyama, Michihisa; Tsuboi, H.; Hatakeyama, N.; Endou, A.; Takaba, H.; Kubo, M.; Del Carpio, C. A.; Kajiyama, H.; Shinoda, T.; Miyamoto, A.

2007. 2143-2146 Paper presented at 14th International Display Workshops, IDW '07, Sapporo, Japan.

Research output: Contribution to conference › Paper

Onuma, H, Tanno, H, Sahnoun, R, Koyama, M, Tsuboi, H, Hatakeyama, N, Endou, A, Takaba, H, Kubo, M, Del Carpio, CA, Kajiyama, H, Shinoda, T & Miyamoto, A 2007, 'Defect levels in BaMgAl10O17 and SrMgAl 10O17: Theoretical and experimental approach', Paper presented at 14th International Display Workshops, IDW '07, Sapporo, Japan, 12/5/07 - 12/5/07 pp. 2143-2146.
Onuma H, Tanno H, Sahnoun R, Koyama M, Tsuboi H, Hatakeyama N et al. Defect levels in BaMgAl10O17 and SrMgAl 10O17: Theoretical and experimental approach. 2007. Paper presented at 14th International Display Workshops, IDW '07, Sapporo, Japan.
Onuma, H. ; Tanno, H. ; Sahnoun, R. ; Koyama, Michihisa ; Tsuboi, H. ; Hatakeyama, N. ; Endou, A. ; Takaba, H. ; Kubo, M. ; Del Carpio, C. A. ; Kajiyama, H. ; Shinoda, T. ; Miyamoto, A. / Defect levels in BaMgAl10O17 and SrMgAl 10O17 : Theoretical and experimental approach. Paper presented at 14th International Display Workshops, IDW '07, Sapporo, Japan.4 p.
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author = "H. Onuma and H. Tanno and R. Sahnoun and Michihisa Koyama and H. Tsuboi and N. Hatakeyama and A. Endou and H. Takaba and M. Kubo and {Del Carpio}, {C. A.} and H. Kajiyama and T. Shinoda and A. Miyamoto",
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T2 - Theoretical and experimental approach

AU - Onuma, H.

AU - Tanno, H.

AU - Sahnoun, R.

AU - Koyama, Michihisa

AU - Tsuboi, H.

AU - Hatakeyama, N.

AU - Endou, A.

AU - Takaba, H.

AU - Kubo, M.

AU - Del Carpio, C. A.

AU - Kajiyama, H.

AU - Shinoda, T.

AU - Miyamoto, A.

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AB - In this study, we investigated the defect levels in the BaMgAl 10O17 and SrMgAl10O17 both theoretically and experimentally. The thermo-luminescence spectra showed the existences of the shallow and deep defect levels in the BaMgAl 10O17 and SrMgAl10O17 phosphors. The calculation results suggested that the structural defects such as oxygen vacancies would work as the trap for excited carrier. Moreover, the calculated binding energies and the formation energies of an oxygen vacancy suggest that the SrMgA10O17 and conduction plane can be degradated.

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