摘要
Hydrogenated 非结晶的 Si (-Si:H) 由于它的低费用，高丰富，长一生，和非毒性是为光电的应用的有希望的材料。我们表明设计在光电的设备在量效率上调查 nanostructured 背反射镜的效果的一台设备。我们采用一种 superstrate 配置以便我们可以使用为比较作为一本参考书为薄电影太阳能电池套住策略的常规工业光。我们经由晶片规模控制了 nanostructure 参数自己组装技术并且系统地学习了在 nanostructure 之间的关系尺寸和光电流产生。在与减少的 nanostructure 规模红移动的显示出的短波长的获得 / 损失转变。在红外线的区域， nanostructured 背反射镜与修改特征规模显示出大光电流改进。这设备几何学是为由 nanostructures 调查吸收改进的一个有用原型。
Hydrogenated amorphous Si （a-Si：H） is a promising material for photovoltaic applications due to its low cost, high abundance, long lifetime, and non-toxicity. We demonstrate a device designed to investigate the effect of nanostructured back reflectors on quantum efficiency in photovoltaic devices. We adopt a superstrate configuration so that we may use conventional industrial light trapping strategies for thin film solar cells as a reference for comparison. We controlled the nanostructure parameters via a wafer-scale self-assembly technique and systematically studied the relation between nanostructure size and photocurrent generation. The gain/loss transition at short wavelengths showed red-shifts with decreasing nanostructure scale. In the infrared region the nanostructured back reflector shows large photocurrent enhancement with a modified feature scale. This device geometry is a useful archetype for investigating absorption enhancement by nanostructures.
