Self-assembled, highly crystalline porous ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) interlayer for Si/organic hybrid solar cells

Self-assembled porous ferroelectric Poly(Vinylidene fluoride-co-trifluoroethylene) thin films are fabricated using a simple spin coating method. The prepared ferroelectric porous thin films enable the application in poly(3,4- ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) / n-Si hybrid solar cells. The power conversion efficiency of optimized device is 10% higher than the device without the ferroelectric layer. The mechanism responsible for the enhanced performance of PEDOT:PSS / P(VDF-TrFE) / n-Si hybrid solar cells is clarified based on finite-difference time-domain simulations.250