Simultaneous emission of orthogonal handedness in circular polarization from a single luminophore.,Light: Science & Applications

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Simultaneous emission of orthogonal handedness in circular polarization from a single luminophore.
Light: Science & Applications ( IF 20.6 ) Pub Date : 2019-12-12 , DOI: 10.1038/s41377-019-0232-0
Kyungmin Baek ₁ , Dong-Myung Lee ₁ , Yu-Jin Lee ₁ , Hyunchul Choi ₂ , Jeongdae Seo ₂ , Inbyeong Kang ₂ , Chang-Jae Yu ₁ , Jae-Hoon Kim ₁

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The direct emission of circularly polarized (CP) light improves the efficiency of an organic light-emitting diode and characterizes the secondary structure of proteins. In most cases, CP light is generated from a luminescent layer containing chiral characteristics, thereby generating only one kind of CP light in an entire device. Here, we propose direct CP light emissions using a twisted achiral conjugate polymer without any chiral dopant as an emitting layer (EML). The twisted structure is induced in the mesogenic conjugate polymer due to its elasticity by applying different alignment directions to its upper and lower interfaces. Furthermore, we demonstrate the simultaneous emission of orthogonal CP light in a single luminescent device by patterning different alignment directions on the surfaces of the EML. The light source with multipolarization including the orthogonal CP states is applicable to many applications in biosensors and optical devices.

中文翻译：

从单个发光体同时发射圆偏振正交性。

圆偏振（CP）光的直接发射提高了有机发光二极管的效率，并表征了蛋白质的二级结构。在大多数情况下，CP光是从包含手性特征的发光层产生的，从而在整个设备中仅产生一种CP光。在这里，我们建议使用扭曲的非手性共轭聚合物直接发射CP光，而无需使用任何手性掺杂剂作为发射层（EML）。通过在其上，下界面上应用不同的排列方向，可在介晶共轭聚合物中产生扭曲结构，这是由于其弹性所致。此外，我们通过在EML的表面上图案化不同的对齐方向来演示在单个发光设备中同时发射正交CP光。

更新日期：2019-12-13

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