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首页> 外文期刊>AIP Advances >Surface plasmon on topological insulator/dielectric interface enhanced ZnO ultraviolet photoluminescence
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Surface plasmon on topological insulator/dielectric interface enhanced ZnO ultraviolet photoluminescence

机译：拓扑绝缘体/介电界面上的表面等离子体激元增强ZnO紫外光致发光

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摘要

It has recently been predicted that the surface plasmons are allowed to exist on the interface between a topological insulator and vacuum. Surface plasmons can be employed to enhance the optical emission from various illuminants. Here, we study the photoluminescenceproperties of the ZnO/Bi2Te3 hybrid structures. Thin flakes of Bi2Te3, a typical three-dimensional topological insulator, were prepared on ZnO crystal surface by mechanical exfoliation method. The ultraviolet emission from ZnO was found to be enhanced by the Bi2Te3 thin flakes, which was attributed to the surface plasmon – photon coupling at the Bi2Te3/ZnO interface.
机译：最近已经预测，允许表面等离子体激元存在于拓扑绝缘体和真空之间的界面上。可以使用表面等离子体激元来增强来自各种光源的光发射。在这里，我们研究ZnO / Bi2Te3杂化结构的光致发光特性。通过机械剥落法在ZnO晶体表面制备了典型的三维拓扑绝缘体Bi2Te3薄片。 ZnO的紫外线发射被Bi2Te3薄片增强了，这归因于Bi2Te3 / ZnO界面处的表面等离激元-光子耦合。

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