Luminescence of the near‐ultraviolet blue‐emitting Ba9Al2Si6O24:Ce3+ phosphor.
| Autor: | Teng, Yongfu |
|---|---|
| Zdroj: | Luminescence: Journal of Biological & Chemical Luminescence; Feb2021, Vol. 36 Issue 1, p256-260, 5p |
| Abstrakt: | A near‐ultraviolet (NUV) blue‐emitting phosphor Ba9Al2Si6O24:Ce3+ (BAS:Ce3+) was synthesized using a high‐temperature solid‐state reaction. BAS:Ce3+ had an excitation band peak at about 328 nm and showed a blue emission band. The NUV‐blue emission band had a peak at about 386 nm with a band width of about 60 nm, attributed to the 5d–4f transition of Ce3+. Fluorescent decay showed an exponential model with a lifetime of 27.2 nsec. At 150°C, the luminescence intensity decreased to 68.7% compared with the intensity at room temperature. [ABSTRACT FROM AUTHOR] |
| Databáze: | Complementary Index |
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