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首页> 外文会议>Physics, simulation, and photonic engineering of photovoltaic devices II >Improving photovoltaic devices using silver nanocubes
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Improving photovoltaic devices using silver nanocubes

机译：使用银纳米立方体改善光伏设备

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We present a design of implementing plasmonic nanoparticles made from silver onto the surface of amorphous silicon based solar cells. When adding these silver nanoparticles we expect to see enhancements to the solar cells due to the plasmonic effects induced by the metal nanoparticles. The nanoparticles are used as subwavelength scattering elements to couple and trap light within the cell. In addition, the excited surface plasmon-polaritons promote a strong localized field enhancement which increases the cells ability to absorb light. Our choice of geometry of the nanoparticle is cubic rather than the traditional spherical geometry. We expect to see the cell perform better with the cubic shape due to the larger surface area it spans. We investigate the effects of these particles on to the performance of the solar cells, as well as introduce an intrinsic layer between the active p and n region creating a p-i-n solar cell configuration. We report the use of an FDTD simulator to characterize the optical performance of the solar cell. Both cubical and spherical nanoparticles made from silver were studied. Our simulations predict an overall increase of 67% (from 7.5% to 12.5) based on the p-i-n configuration with inclusion of the plasmonic particles onto the surface of the cells. Experimentally we verified the results by first fabricating a crystalline silicon-based solar cell with a p-n configuration and then placing the silver nanocubes onto the surface of the cell. An overall increase of about 28% was experimentally demonstrated (from 3.97% to 5.081%). We anticipate further increases with the p-i-n configuration.
机译：我们提出了一种将由银制成的等离激元纳米粒子实施到基于非晶硅的太阳能电池表面的设计。当添加这些银纳米颗粒时，由于金属纳米颗粒引起的等离子体效应，我们期望看到太阳能电池的增强。纳米颗粒用作亚波长散射元件，以将光耦合并捕获到细胞内。另外，激发的表面等离子体激元-极化子促进了强烈的局部场增强，这增强了细胞吸收光的能力。我们选择的纳米粒子的几何形状是立方体，而不是传统的球形几何形状。我们期望看到电池由于其更大的表面积而具有更好的立方形状。我们研究了这些颗粒对太阳能电池性能的影响，并在有源p和n区域之间引入了本征层，从而创建了p-i-n太阳能电池配置。我们报告了使用FDTD模拟器来表征太阳能电池的光学性能。研究了由银制成的立方和球形纳米颗粒。我们的模拟预测，基于p-i-n构型（将等离激元粒子包含在细胞表面上），总体增加67％（从7.5％到12.5）。通过实验，我们首先通过制造具有p-n构造的晶体硅基太阳能电池，然后将银纳米立方体放置在电池表面上来验证结果。实验证明总体增加了约28％（从3.97％增加到5.081％）。我们预计p-i-n配置会进一步增加。

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