Enhanced red emission in ZnB2O4:Eu3+ by charge compensation
作者： Zhongfei Mu , Yihua Hu , Li Chen , Xiaojuan Wang
DOI: 10.1016/J.OPTMAT.2011.07.012
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摘要: Abstract Eu 3+ doped ZnB 2 O 4 without or with different charge compensation (CC) approaches (co-doping Li + , Na K, decreasing the content of Zn 2+ ) were prepared by solid state reactions. The phosphors can strongly absorb 393 nm ultraviolet (UV) light which is coupled well emission currently used InGaN-based near UV emitting diodes (LEDs) and emit red a good color purity. luminescent intensity be remarkably enhanced any CC methods. However, shape position excitation spectra keep unchanged. introduction enhance ∼4 times optimal effect. Red also other three but effects are not as because volume unbalance in approach smallest while net positive was offset. results this work suggest that equilibrium mole number should taken into account when selected.
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