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首页> 外文期刊>RSC Advances >Unravelling the energy transfer mechanism in bismuth co-activation of LaInO3:Sm3+/Ho3+ nanophosphor for color-tunable luminescence
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Unravelling the energy transfer mechanism in bismuth co-activation of LaInO3:Sm3+/Ho3+ nanophosphor for color-tunable luminescence

机译：揭示LaInO 3 ：Sm 3 + / Ho 3 + 纳米磷在铋共激活中的能量传递机理，从而实现颜色可调的发光。

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摘要

A series of single-phased and color tunable LaInO3:Bi3+,Ho3+/Sm3+ nano phosphors were synthesized via a cost effective and low temperature chemical route. The crystal structure, morphology, photoluminescence (PL) and energy transfer mechanism between Bi3+ to Ho3+/Sm3+ were investigated in detail. The considerable spectral overlap between the broad emission band of Bi3+ around 400–500 nm and the excitation band of Ho3+ and Sm3+ supports the efficient energy transfer from Bi3+ to Ho3+/Sm3+, which enhances the PL intensity remarkably. The energy transfer efficiency between Bi3+ and Ho3+/Sm3+ in LaInO3 was also calculated and the efficiency increased linearly with increasing concentration of Ho3+ and Sm3+. The emission hue can be tuned from blue to green and pink by varying the content of Ho3+/Sm3+. This investigation will extend an understanding of interactions between Bi3+ and rare earth ions in semiconducting host LaInO3 and show the potential applications of Bi3+, Ho3+/Sm3+ co-doped nanophosphors in displays and light emitting diodes.
机译：一系列单相和颜色可调的LaInO 3 ：Bi 3 + ，Ho 3 + / Sm 3 + 纳米荧光粉。 Bi 3 + 到Ho 3 + / Sm 3 + 。 Bi 3 + 的宽发射带与400 <500 nm附近的Ho 3 + 的激发带之间存在明显的光谱重叠和Sm 3 + 支持从Bi 3 + 到Ho 的有效能量传输 3 + / Sm 3 + ，可显着提高PL强度。 Bi 3 + 与Ho 3 + / Sm 3+之间的能量转移效率还计算了LaInO 3 中的 ，效率随着Ho 3 + 浓度的增加而线性增加。 和Sm 3 + 。通过改变Ho 3 + / Sm 3 + 的含量，可以将发射色调从蓝色变为绿色和粉红色。小>。这项研究将扩展对Bi 3 + 与半导体宿主LaInO 3 和稀土离子中稀土离子之间相互作用的理解。显示Bi 3 + ，Ho 3 + / Sm 3+的潜在应用显示器和发光二极管中的 共掺杂纳米磷光体。

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