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Revealing the multicolor mechanism in borotellurite glass phosphor: From individual emission of dual-modes to WLED applications
Journal of Luminescence ( IF 3.3 ) Pub Date : 2021-02-12 , DOI: 10.1016/j.jlumin.2021.117972
J.M. An , D.S. Li , X.Y. He , E.Y.B. Pun , H. Lin

Dy3+, Eu3+ co-doped borotellurite (HKMTZ) glasses are fabricated successfully by pressureless solid-phase reaction for potential applications in white light-emitting diodes (WLED). A novel effect of individual emission of dual-modes between Dy3+ and Eu3+ is observed firstly which reveals the multicolor mechanism that can be tuned easily from reddish-orange (2746 K) to nature-white (4588 K) to cool white (7889 K). And dual-modes emissions of Dy3+ and Eu3+ with independent light-emitting are enabled to be observed under 393 nm excitation due to the strong competition between Dy3+ and Eu3+. Moreover, replacing traditional packaging technology of LED to regard as color-converter has been come up as an efficient method to promote properties of luminescence and thermal stability. The aforesaid phenomena of photoluminescence results demonstrate that Dy3+, Eu3+ co-doped HKMTZ glass is an excellent candidate with tunable multicolor which may possess promising applications for WLED.



中文翻译:

揭示硼铁矿玻璃荧光粉中的多色机理:从双模的单独发射到WLED应用

通过无压固相反应成功地制备了Dy 3+,Eu 3+共掺杂硼铁矿(HKMTZ)玻璃,可用于白光发光二极管(WLED)。首先观察到Dy 3+和Eu 3+之间的双模个体发射的新颖效果,揭示了可以容易地从橘红色(2746 K)调整为自然白(4588 K)到冷白色的多色机理。 (7889 K)。由于Dy 3+和Eu 3+之间的激烈竞争,可以在393 nm激发下观察到具有独立发光的Dy 3+和Eu 3+的双模发射。。而且,已经提出了代替传统的LED封装技术以作为色彩转换器,以提高发光性能和热稳定性的有效方法。上述光致发光现象表明,Dy 3+,Eu 3+共掺杂的HKMTZ玻璃是具有可调多色的优良候选材料,可能在WLED中具有广阔的应用前景。

更新日期:2021-02-19
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