Publication date: 14th September 2021
Generation of energy using silicon solar cell is a well-established technology. However, silicon (like other semiconductors) fails to utilize the energy excess to its bandgap in the form of thermalization loss. To reduce these losses one of the solutions is to enhance sensitivity to light by sensitizing the silicon solar cell using singlet exciton fission. This singlet exciton fission in organic chromophore generates triplet excitons which needs to be transferred to silicon via an interlayer, which further should result in the creation of additional electron hole pairs and thus, boost the efficiency. However, the interlayer via which these triplets/triplet energy transfers play a crucial role. Thus, in our work we aim to study interlayers with different dielectric constant and its impact on the triplet transfer and device performance.