Bi2S3 nanowire networks as electron acceptor layers in solution-processed hybrid solar cells

Abstract

We report the assembly of Bi₂S₃ into percolated networks. Subsequent infiltration of poly(3-hexylthiophene), P3HT, as the electron donor generates an inorganic–organic active layer. Inverted solar cells fabricated with these active layers exhibit power-conversion efficiencies as high as 3.3%. To the best of our knowledge, this is the first example of a hybrid solar cell comprising a percolated network of single-crystalline Bi₂S₃ nanowires and P3HT.