Virtual Designer Metals for Enhancement of Plasmonic Nanoparticles Which Improve the Light Absorption in Silicon,Advanced Optical Materials

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Virtual Designer Metals for Enhancement of Plasmonic Nanoparticles Which Improve the Light Absorption in Silicon
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2020-09-03 , DOI: 10.1002/adom.202001011
Jack G. Nedell ₁ , Marcel Di Vece ₁

Affiliation

Although it has been established that plasmonic nanostructures can enhance the optical absorption in thin‐film solar cells, despite Ohmic losses, more improvements are required to become interesting for applications. Here, virtual metals are improved by adjusting the refractive index with the particle swarm method to obtain virtual metal nanoparticles, which are optimized for optical absorption enhancement in silicon layers. The properties of these optimized virtual metals are investigated to determine the mechanism behind the plasmonic enhancement. Besides the plasmon resonance position and strength, the ability to position different orders of the plasmon resonance in the same wavelength range contributes to considerable improvements. The here obtained virtual metals can be a guide for developing new nanoscale alloys for solar cell plasmonics.

中文翻译：

虚拟设计器金属，用于增强等离子纳米粒子，从而改善硅中的光吸收

尽管已经确定等离激元纳米结构可以增强薄膜太阳能电池的光吸收，尽管存在欧姆损耗，但仍需要进行更多的改进才能引起人们的兴趣。在此，通过使用粒子群方法调整折射率来获得虚拟金属纳米粒子，从而改善了虚拟金属，这些粒子针对硅层中的光吸收增强进行了优化。研究了这些优化的虚拟金属的特性，以确定其等离子体增强的机理。除了等离激元共振的位置和强度以外，在相同波长范围内定位不同阶次的等离激元共振的能力有助于显着改善。此处获得的虚拟金属可以为开发用于太阳能电池等离子体的新型纳米合金提供指导。

更新日期：2020-11-04

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