High Fill Factor Solution Processed Copper Phthacyloanine Nanoparticle Organic Solar Cells

Copper phthalocyanine (CuPc) organic solar cells (OSCs) have attracted more attentions because of the long-term stability, however, the high-cost fabrication method limits the application of CuPc OSCs. Here we report a surfactant-free CuPc nanoparticle organic solar cell with a much improved fill factor of 0.58, a power conversion efficiency (PCE) of 0.97% by low-cost spin coating process. Annealing plays a key role on the enhancement of the …