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Highly efficient white light-emitting diode by using purple light chip and yellow-green phosphor

机译:通过使用紫色浅芯片和黄绿磷光体的高效白色发光二极管

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摘要

To explore highly efficient white light-emitting diode, a series of Mn2+-doped borophosphate glasses were prepared. Under 402 nm excitation, the borophosphate glass doped with 6 mol% Mn2+ ion can emit the strong yellow-green luminescence (peak at 567 nm). Thus, white light can be obtained by combining the violet radiation light (similar to 402 nm) with yellow-green luminescence (similar to 567 nm), whose CIE coordinate is (x = 0.342, y = 0.338), and whose luminescence quantum yield is more than 50% dependent on the excitation power. And the CIE coordinate do not vary with increasing of the excitation power. The excellently optical characters of the material are helpful for white light-emitting diode (White LED).
机译:为了探索高效的白色发光二极管,制备了一系列MN2 +掺杂的硼磷酸玻璃。 在402nm激发下,掺杂有6摩尔%Mn 2 +离子的硼磷酸玻璃可以发射强黄绿色发光(峰值567nm)。 因此,通过将紫色辐射光(类似于402nm)与黄绿色发光(类似于567nm)组合,其CIE坐标是(X = 0.342,Y = 0.338),并且其发光量子产量 依赖于激励力量超过50%。 并且CIE坐标不会随着激励力的增加而变化。 材料的优良光学特性有助于白色发光二极管(白色LED)。

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