Ammonothermal synthesis of charge-compensated SrAlSiN3:Ce3+ phosphor

In this study, we successfully synthesized SrAlSiN3:Ce3+ at 1073 K using the ammonothermal method. Scanning electron microscope images revealed bar-like crystals in the products. We investigated the effects of using a charge-compensating ion on the phosphor’s emission of SrAlSiN3 with Ce3+ and Sr2+...

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Veröffentlicht in:Journal of the Ceramic Society of Japan 2017/05/01, Vol.125(5), pp.399-401
Hauptverfasser: MARUYAMA, Yuki, YANASE, Yuki, WATANABE, Tomoaki
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Sprache:eng
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Zusammenfassung:In this study, we successfully synthesized SrAlSiN3:Ce3+ at 1073 K using the ammonothermal method. Scanning electron microscope images revealed bar-like crystals in the products. We investigated the effects of using a charge-compensating ion on the phosphor’s emission of SrAlSiN3 with Ce3+ and Sr2+ and adding Na+ as a charge compensator. We found that Ce3+-doped SrAlSiN3 exhibited a weak emission. However, SrAlSiN3 co-doped with Ce3+ and Na+ exhibited a broad emission band centered at approximately 550 nm for an excitation wavelength of 460 nm. We, thus, found that Na+ has an important impact on Sr2+ and Ce3+ by acting as a charge-compensating ion. We were able to successfully synthesize a novel SrAlSiN3:Ce3+ phosphor by adjusting the charge of Sr2+ and Ce3+ by controlling the Na+ co-doping.
ISSN:1882-0743
1348-6535
DOI:10.2109/jcersj2.16295