Investigation into a graphene ultra-flat lens array for silicon solar cells breaking the Shockley-Queisser efficiency limit

基于最近发现的巨大折射率调制与石墨烯氧化物到石墨烯在激光照射下的转变有关，以及石墨烯硅太阳能电池的突破。该项目旨在研究纳米结构氧化石墨烯/石墨烯的可集成、宽带、无色散、超平面透镜阵列的新概念。这一概念上的新发展功能氧化石墨烯/石墨烯透镜阵列与块状纳米颗粒支持的背光捕获层相结合，将允许宽带太阳能光以最小的熵损失非互反耦合进入光伏器件。因此，可以开发出超过传统理论极限的超高效率太阳能电池。

Based on a recent discovery of the giant refractive index modulation associated with graphene oxide to graphene transition upon laser exposure and the breakthrough of graphene silicon solar cells. This project aims to investigate a new concept of an integratible, broadband, dispersionless, ultraflat lens array from nanostructured graphene oxide/graphene. This conceptually new development of functional graphene oxide/graphene lens array in combination with a lumpy nanoparticle enabled back light trapping layer will allow for the non-reciprocal coupling of the broadband solar light into the photovoltaic devices with minimised entropy losses. Thus ultrahigh efficiency solar cells exceeding the conventional theoretical limit can be developed.