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首页> 外文会议>18th International Symposium on Fine Chemistry and Functional Polymers,4th IUPAC International Symposium on Novel Materials and Their Synthesis(第18届国际精细化学和功能高分子学术讨论会暨第四届IUPAC 国际新型材料及其制备学术讨论会） >Enhanced Photoluminescence of Light-Emitting Polymers Coated with Metal:Energy and Charge Transfer Effect in Surface Plasmon Resonance
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Enhanced Photoluminescence of Light-Emitting Polymers Coated with Metal:Energy and Charge Transfer Effect in Surface Plasmon Resonance

机译：涂有金属的发光聚合物的增强光致发光：表面等离子体共振中的能量和电荷转移效应

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1.Introduction Surface plasmon (SP) is longitudinal surface charge oscillations of flee electrons that propagate along the junction between the metal and the dielectric material such as light emitting material[1]. As the SP energy of nanoscale metals matches with the emitted photon energy of the light emitting materials, the resulting SPR can lead to an energy and/or charge transfer from the nanometer scale metal surface to the light emitting materials or vice versa[2,3]. Therefore, it can introduce the increase of the number of excitons, which means the enhancement of photoluminescence (PL) intensity in nanometer scale metal-light emitting materials, which can be applied to applications in the fields of biological sensing, quantum wells or dots, light emitting diodes, etc. Here, we report on a significant enhancement in the PL intensity of a single strand of hybrid double layered nanotubes (HDLNTs) consisting of doped poly (3-methylthiophene) (P3MT) enveloped by nanoscale Ni metal, denoted as doped-P3MT/Ni. As the doping level of the P3MT nanotubes became higher, the PL intensity of the single strand of the P3MT/Ni HDLNTs increased remarkably up to～350 times. From the normalized ultraviolet and visible (UV/Vis) absorption spectra, we observed that, with increasing doping level of the P3MT nanotubes increased, the new UV/Vis absorption peaks corresponding to the SP energy of the HDLNTs of doped-P3MT nanotubes with nanoscale Ni coating increased implying a charge transfer. The enhancement of the PL of the doped-P3MT-based HDLNTs was attributed to the effects of both energy transfer and charge transfer from the bipolaron band of the doped P3MT materials in the SPR coupling.
机译：1引言表面等离激元（SP）是逃逸电子的纵向表面电荷振荡，该逃逸电子沿着金属和介电材料（例如发光材料）之间的结传播[1]。随着纳米级金属的SP能量与发光材料的发射光子能量匹配，所得的SPR可以导致能量和/或电荷从纳米级金属表面转移到发光材料，反之亦然[2,3]。 ]。因此，它可以引入激子数量的增加，这意味着纳米级金属发光材料中光致发光（PL）强度的增强，可以应用于生物传感，量子阱或点等领域，在此，我们报告了由掺杂有纳米级镍金属的掺杂聚（3-甲基噻吩）（P3MT）组成的混合双层纳米管（HDLNT）单链的PL强度显着提高，表示为掺杂的P3MT / Ni。随着P3MT纳米管掺杂水平的提高，P3MT / Ni HDLNTs单链的PL强度显着提高至350倍。从归一化的紫外线和可见光（UV / Vis）吸收光谱中，我们观察到，随着P3MT纳米管掺杂水平的提高，新的UV / Vis吸收峰与纳米级掺杂P3MT纳米管的HDLNT的SP能量相对应。镍涂层增加意味着电荷转移。掺杂的基于P3MT的HDLNT的PL的增强归因于在SPR耦合中能量转移和电荷从掺杂的P3MT材料的双极化子带转移。

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