Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Luminescent Properties of Er-Doped ZnO Phosphors

희토류계 Erbium을 도핑한 ZnO 형광체의 발광특성

  • Song, Hyun-Don (Department of Materials Science and Engineering, Kyonggi University) ;
  • Kim, Young-Jin (Department of Materials Science and Engineering, Kyonggi University)
  • 송현돈 (경기대학교 첨단산업공학부 신소재공학) ;
  • 김영진 (경기대학교 첨단산업공학부 신소재공학)
  • Published : 2006.01.27
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Abstract

Effects of doping concentration and annealing atmosphere on the luminescent properties of $Er^{3+}$ doped ZnO phosphor powders were investigated. Photoluminescence (PL) spectra of ZnO:Er exhibit an orange emission band at around 575 nm, while those of pure ZnO show a green emission at 520 nm. Emission difference between ZnO:Er and pure ZnO is attributed to the energy transfer of Er ions in ZnO. The highest PL intensity is obtained by doping 1 mol% Er to ZnO. Luminescent properties of ZnO:Er phosphors annealed at $N_2$+vacuum atmosphere are superior to those annealed at $N_2$ atmosphere.

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References

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