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Updated: Jan 12, 2026
11:26
Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
Published on: September 12, 2014
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Singlet Fission Luminescent Solar Concentrators
Tomi K Baikie1, Jesse Allardice1, Simon A Dowland2
1Cavendish Laboratory, University of Cambridge, J.J. Thomson Ave, Cambridge CB3 0HE, U.K.
Nano Letters
|October 31, 2025
Summary
Singlet fission luminescent solar concentrators (SF-LSCs) show potential for efficient solar energy harvesting by mitigating photon flux limitations. Challenges with triplet-triplet annihilation persist at higher light intensities.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- Luminescent solar concentrators (LSCs) offer a promising approach to solar energy capture.
- Photon-multiplier LSCs (PM-LSCs) exhibit high photoluminescence quantum efficiency but face optical efficiency challenges with photon flux.
- Singlet fission (SF) is an exciton multiplication process with potential for enhanced solar energy applications.
Purpose of the Study:
- To demonstrate a photon-multiplier luminescent solar concentrator (PM-LSC) utilizing singlet fission (SF).
- To investigate the suitability of TIPS-tetracene and PbS quantum dots for solid-state SF-LSC devices.
- To explore SF-LSCs as a method to overcome fluence limitations in PM-LSCs.
Main Methods:
- Fabrication of large-area films of TIPS-tetracene mixed with tetracene-carboxylic acid-ligated PbS quantum dots.
- Integration of these films into solid-state luminescent solar concentrator devices.
- Evaluation of optical efficiency and performance under varying photon fluxes.
Main Results:
- Singlet fission luminescent solar concentrators (SF-LSCs) were successfully demonstrated.
- The developed SF-LSCs show potential to mitigate fluence limitations seen in other quantum cutting systems.
- Triplet-triplet annihilation (TTA) was identified as a limiting factor at higher photon fluxes.
Conclusions:
- SF-LSCs offer a viable pathway to enhance solar energy harvesting by addressing photon flux sensitivity.
- Further research is needed to overcome triplet-triplet annihilation challenges for optimal performance.
- SF-LSCs represent a promising direction for the future development of advanced solar concentrator technologies.
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