Abstract
In this study, we used a transferring process to fabricate a simple light-harvesting system featuring 2D periodic granular-like electrodes for polymer solar cells (PSCs). This transferring technique, which was based on nanosphere lithography, could be used to fabricate periodic nanostructures on both the photoactive layers and the Al electrodes in the normal PSC device configuration (indium tin oxide glass/PEDOT:PSS/photoactive layer/Al). We investigated the properties of the PSC devices featuring periodic nanostructures in the photoactive layers using reflection UV–vis spectra and in terms of their external quantum efficiency (EQE) and photocurrent–voltage characteristics. In addition, we used numerical simulations to evaluate the electromagnetic field distributions in the devices. The light trapping efficiency in the PSCs featuring periodic nanostructures was enhanced as a result of light scattering and surface plasmon resonance effects. Relative to conventional devices featuring a flat geometry, the po...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
