Singlet Fission Luminescent Solar Concentrators.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 41170806.
- Also identified by DOI 10.1021/acs.nanolett.5c04255 and PMC identifier 12616784.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Luminescent solar concentrators (LSCs) present a promising avenue for solar energy harvesting, utilizing transparent matrices embedded with light-absorbing chromophores to concentrate incident solar radiation. Photon-multiplier luminescent solar concentrators (PM-LSCs) contain chromophores boasting over 100% photoluminescence quantum efficiency. Although PM-LSCs may bypass free energy losses observed in traditional LSC systems, experimental PM-LSCs have exhibited optical efficiency sensitivity to photon flux. Here, we demonstrate a PM-LSC utilizing singlet fission (SF), an exciton multiplication process. We apply large-area films of absorbing TIPS-tetracene mixed with tetracene-carboxylic acid-ligated PbS quantum dots and demonstrate they are suitable for solid-state LSC devices. We find that although SF-LSCs present pathways to mitigate fluence limitations observed in quantum cutting systems, challenges persist due to triplet-triplet annihilation (TTA) at higher photon fluxes. The potential of SF-LSCs to overcome fluence limitations in PM-LSCs suggests a promising avenue for future development.