Abstract
The efficiency of photocurrent generation in bilayer organic solar cells is shown to increase when molecular order is improved. This effect is studied in cells using pure cis and trans isomers of 3,4,9,10-perylene tetracarboxylic bisbenzimidazole. X-ray diffraction studies show that the π-π stacking direction lies in the substrate plane for both isomers and that the trans isomer exhibits improved molecular order in the out-of-plane direction. The improved stacking leads to an increased exciton diffusion length and increased external quantum and power conversion efficiencies. These results provide insight into the effect of molecular structure and packing on the exciton diffusion length.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
