Carrier Dynamics of Efficient Triplet Harvesting in AgBiS₂ /Pentacene Singlet Fission Solar Cells.

ABSTRACT: Singlet fission is a process by which an organic semiconductor is able to generate two triplet excitons from a single photon. If charges from the triplets can be successfully harvested without heavy losses in energy, then this process can enable a single-junction solar cell to surpass the Shockley-Queisser limit. While singlet fission processes are commonly observed in several materials, harvesting the resulting triplets is difficult and has been demonstrated with only a few transport materials. Here, transient absorption spectroscopy is used to investigate singlet fission and carrier transfer processes at the AgBiS₂ /pentacene (AgBiS₂ /Pc) heterojunction. The successful transfer of triplets from pentacene to AgBiS₂ and the transfer of holes from AgBiS

SUBMITTER: Geng P 

PROVIDER: S-EPMC10161067 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature