The main objective of this work is to use β-SiC (also called 3C-SiC) silicon carbide nanoparticles to formulate composite layer for wavelength conversion. Silicon Carbide nanopowders (npβ-SiC) were successfully synthesized by sol-gel method and followed by carbothermal reduction. Composite thin layers based on np-β-SiC incorporated into polyvinyl alcohol, (PVA) as matrix, where prepared. We have investigated the composite layers deposited silicon solar cell as a luminescent down shifting layer (LDS) to convert UV wavelengths. The texturation of the substrates by making pyramids, pyramids with nanowires was investigated in order to decrease the surface reflectance of silicon surface. An improvement in the spectral response of the obtained solar cells was very remarkable. In order to confirm this property, electro-optical characterizations were carried out on the solar cell with the developed composite layer and also on that without β-SiC/PVA coating, as reference. The morphological quality of the used substrates was examined by SEM images. EQE measurements have shown a noticeable increase showing the ability to use the prepared composite layer as lightweight encapsulation material for photovoltaic devices.

这项工作的主要目的是使用β-S​​iC（也称为3C-SiC）碳化硅纳米粒子来配制用于波长转换的复合层。通过溶胶-凝胶法成功地合成了碳化硅纳米粉体（npβ-SiC），然后进行了碳热还原。制备基于np-β-SiC的复合薄层，该复合层掺入聚乙烯醇（PVA）中作为基质。我们已经研究了复合层沉积的硅太阳能电池作为发光下移层（LDS）来转换UV波长。为了降低硅表面的表面反射率，研究了通过制造金字塔，用纳米线形成金字塔来对衬底进行纹理化。所获得的太阳能电池的光谱响应的改善非常显着。为了确认此属性，作为参考，在具有已开发复合层的太阳能电池上以及在没有β-SiC/ PVA涂层的太阳能电池上进行了电光表征。通过SEM图像检查所用基材的形态质量。EQE测量结果显示出明显的增加，表明了将准备好的复合层用作光伏器件的轻质封装材料的能力。