Novel hybrid materials of lanthanide coordination polymers ion exchanged Mg-Al layered double hydroxide: Multi-color photoluminescence and white color thin film

Novel hybrid materials of lanthanide coordination polymers ion exchanged Mg-Al layered double hydroxide: Multi-color photoluminescence and white color thin film
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新型稀土配位聚合物离子交换镁铝层状双氢氧化物杂化材料:多色光致发光和白色薄膜

DOI:
10.1016/j.dyepig.2018.02.017
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发表时间:
2018-06
期刊:
影响因子:
4.5
通讯作者:
Yan Bing
Yan Bing
中科院分区:
材料科学2区
文献类型:
--
作者:
Ma Jing;Yan Bing

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本文中,通过发光稀土配位聚合物[H2NMe2]3[Ln(DPA)3](Ln=Eu、Tb、Sm、Dy、Nd;[H2NMe2]+=二甲基氨基阳离子;H2DPA=2,6-吡啶二羧酸)与柱状层状双氢氧化物的离子交换组装制备了柱状层状杂化材料Ln(PDA)33-LDH。 (Mg6Al2(OH)16CO3·4H2O)。 Mg-Al中LDH通过阴离子交换([Ln(PDA)3]3-)和静电作用与[H2NMe2]3[Ln(DPA)3]相互作用形成[Ln(PDA)3]3--LDH。所有这些混合体都显示出典型的 Ln3+ 发射。通过控制混合体系中不同Ln3+阳离子的组成,可以调节发光颜色并实现白光输出。此外,通过仔细调整激发波长,可以调制发光的颜色。此外,为了扩展其潜在应用,制备了基于[Dy/Eu(PDA)3]3-LDH的白光发射薄膜,其显示出理想的白光。
In the context, pillared layered hybrid materials Ln(PDA)33—LDH are prepared through ion exchange assembly of luminescent lanthanide coordination polymers [H2NMe2]3[Ln(DPA)3] (Ln = Eu, Tb, Sm, Dy, Nd; [H2NMe2]+= dimethyl amino cation; H2DPA = 2,6-dipicolinic acid) and pillared layered double hydroxide (Mg6Al2(OH)16CO3·4H2O). Among Mg-Al LDH interacts with [H2NMe2]3[Ln(DPA)3] through anion exchange ([Ln(PDA)3]3-) and electrostatic effect to form [Ln(PDA)3]3--LDH. All these hybrids display the typical Ln3+emission. By controlling the composition of different Ln3+cations in hybrid systems, the luminescent color can be tuned and the white light output can be realized. Furthermore, with careful adjustment of the excitation wavelength, the color of the luminescence can be modulated. Moreover, the white light emissive thin film based on the [Dy/Eu(PDA)3]3--LDH are prepared in order to extend their potential application, which displays desirable white light.
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