Current-controlled electroluminescence from light-emitting diodes based on Tm, Er, and Eu codoped Ga2O3 thin films
Current-controlled electroluminescence from light-emitting diodes based on Tm, Er, and Eu codoped Ga2O3 thin films
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DOI：
10.35848/1882-0786/ac851d
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发表时间：
2022-07
影响因子：
2.3
通讯作者：
Yafei Huang;Gaofeng Deng;Katsuhiko Saito;Tooru Tanaka;Q. Guo
中科院分区：
文献类型：
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作者：
Yafei Huang;Gaofeng Deng;Katsuhiko Saito;Tooru Tanaka;Q. Guo
在这项工作中，我们报告的演示的基础上的Tm，Er，Eu共掺杂的Ga 2 O 3薄膜的LED。在较低的驱动电压下，观察到Ga 2 O 3：（Tm+Er+Eu）基发光二极管的电流控制电致发光（EL）。EL光谱表明，所观察到的发光分别来自Tm 3+、Er 3+和Eu 3+离子的蓝、绿色和红光发射。这种LED的策略显示出通过有意地改变Ga 2 O 3中Tm 3+、Er 3+和Eu 3+离子的浓度而不使用任何其他磷光体来实现全色（白色光）的巨大潜力。
In this work, we report on the demonstration of an LED based on Tm, Er, and Eu codoped Ga2O3 thin film. Current-controlled electroluminescence (EL) has been observed from the Ga2O3:(Tm+Er+Eu)-based LED with a relatively low driven voltage of ∼9 V. The EL spectra reveal that the observed light emission results from the combination of simultaneous blue, green, and red emissions from Tm3+, Er3+, and Eu3+ ions, respectively. This strategy for LED shows great potential to achieve full color (white light) by intentionally changing the concentrations of Tm3+, Er3+, and Eu3+ ions in Ga2O3 without using any other phosphors.