Scale dependent performance of metallic light-trapping transparent electrodes
Scale dependent performance of metallic light-trapping transparent electrodes
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DOI：
10.1364/oe.391351
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发表时间：
2020-06-08
期刊：
影响因子：
3.8
通讯作者：
Kik, Pieter G.
中科院分区：
文献类型：
--
作者：
Sun, Mengdi;Kik, Pieter G.
研究了光捕获金属电极的光学和电学性能。通过利用附加电介质覆盖层表面的全内反射，与标准金属接触件相比，金属接触件的反射损耗显着降低。三角形线阵列随着尺寸的增加而表现出更高的性能，而圆柱形线随着其尺寸的增加而继续表现出衍射损耗。这些趋势成功地与单根金属线的辐射模式相关联。金属面积覆盖率为 25% 的三角形金属电极，电极宽度为 2 μm，在 0.46-1.1 μm 波长范围内的偏振平均透射率可达 >90%，峰值透射率为 97%，偏振度为
The optical and electrical performance of light trapping metallic electrodes is investigated. Reflection losses from metallic contacts are shown to be dramatically reduced compared to standard metallic contacts by leveraging total internal reflection at the surface of an added dielectric cover layer. Triangular wire arrays are shown to exhibit increased performance with increasing size, whereas cylindrical wires continue to exhibit diffractive losses as their size is increased. These trends are successfully correlated with radiation patterns from individual metallic wires. Triangular metallic electrodes with a metal areal coverage of 25% are shown to enable a polarization-averaged transmittance of >90% across the wavelength range 0.46-1.1 mu m for an electrode width of 2 mu m, with a peak transmission of 97%, a degree of polarization of