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首页> 外文期刊>Nanotechnology >Polarized ultraviolet emitters with Al wire-grid polarizers fabricated by solvent-assisted nanotransfer process
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Polarized ultraviolet emitters with Al wire-grid polarizers fabricated by solvent-assisted nanotransfer process

机译：偏振紫外线发射器，采用溶剂辅助纳米转器工艺制造的铝网偏振器

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摘要

Polarized ultraviolet (UV) emitters are essential for various applications, such as photoalignment devices for liquid crystals, high-resolution imaging devices, highly sensitive sensors, and steppers. To increase the high polarization ratio (PR) of a UV emitter, the grating period should be decreased than that of the visible emitter. However, the fabrication of the short period grating directly on UV emitters is still limited. In this study, we demonstrate that 200, 100, and 50 nm period aluminum (Al)-based wire-grid polarizers (WGPs) can be fabricated directly on UV emitters by a solvent-assisted nanotransfer process. The UV emitter with a grating period of 100 nm shows a PR of 84%, and an electroluminescence efficiency that is 22.5% and 48% higher than those of UV emitters with 50 nm and 200 nm period WGPs, respectively, due to the increased photon extraction efficiency (PEE). The higher PEE is attributed to the optical cavity property of the Al metal reflector with low light loss and the surface plasmon effect of the Al grating layer.
机译：偏振紫外线（UV）发射器对于各种应用是必不可少的，例如用于液晶，高分辨率成像装置，高度敏感传感器和步进者的光空购装置。为了增加UV发射器的高偏振率（PR），光栅期应比可见发射器的光栅周期降低。然而，直接在UV发射器上的短时间光栅的制造仍然有限。在该研究中，我们证明了通过溶剂辅助的纳米转换方法直接在UV发射器上直接制造200,100和50nm的铝（Al）基栅偏振器（WGPS）。具有100nm的光栅周期的UV发射器显示出84％的PR，电致发光效率分别比P光子增加了22.5％，高于紫外线发射器的紫外线发射器，而不是50nm和200nm期间的WGP。提取效率（小便）。较高的小便归因于Al金属反射器的光腔特性，具有低光损失和Al光栅层的表面等离子体效应。

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