Singlet Fission c-Si Solar Cells: Beyond Tetracene
Singlet fission photovoltaics enable the extraction of two electron–hole pairs from each higher-energy photon while leveraging a mature technology such as crystalline silicon (c-Si) as the underlying cell. Significant steps have been made in the development of singlet fission silicon photovoltaics, but all examples reported to date use tetracene as the singlet fission material. Tetracene is photochemically unstable and therefore unsuitable for commercial applications. Here we demonstrate singlet fission-derived triplet exciton transfer to c-Si from photochemically stable dipyrrolonaphthyridinedione (DPND) derivatives, with a thin layer of tin oxide as the passivation layer. An overlayer of poly(3,4-ethylenedioxythiophene) polystyrenesulfonate (PEDOT:PSS) was found to improve interface passivation further. These observations demonstrate that singlet fission photovoltaic devices can be made using stable and commercially viable materials.
Authors
- Timothy W. Schmidt (ORCID: https://orcid.org/0000-0001-6691-1438)
- Miles I. Collins (ORCID: https://orcid.org/0000-0002-8404-1875)
- Dane R. McCamey (ORCID: https://orcid.org/0000-0001-7727-6804)
- Alexander Baldacchino (ORCID: https://orcid.org/0000-0002-9670-9422)
- Phoebe Pearce (ORCID: https://orcid.org/0000-0001-9082-9506)
- Ben P. Carwithen (ORCID: https://orcid.org/0000-0002-3140-1793)
- Michael P. Nielsen (ORCID: https://orcid.org/0000-0002-0457-7208)
- Alison Ciesla (ORCID: https://orcid.org/0000-0002-5109-6458)
- Shona McNab (ORCID: https://orcid.org/0000-0002-2978-8458)
- Matthew W. Brett
- Simona S. Capomolla (ORCID: https://orcid.org/0000-0002-3770-4517)
- Murad J. Y. Tayebjee (ORCID: https://orcid.org/0000-0001-5639-027X)
- Munavvar Fairoos Mele Kavungathodi (ORCID: https://orcid.org/0000-0002-1693-7629)
- Jonathon E. Beves (ORCID: https://orcid.org/0000-0002-5997-6580)
- Nathan L. Chang (ORCID: https://orcid.org/0000-0003-2744-582X)
- Yajie Jiang (ORCID: https://orcid.org/0000-0001-6583-2359)
- Nicholas J. Ekins‐Daukes (ORCID: https://orcid.org/0000-0003-1875-9739)
- Bram Hoex (ORCID: https://orcid.org/0000-0002-2723-5286)
- Damon M. de Clercq (ORCID: https://orcid.org/0000-0002-5648-0643)
- Victor Zhang
- Alvin Mo
- J.J. Tong (ORCID: https://orcid.org/0000-0001-6557-0221)
Institutions
- UNSW Sydney (AU)
Publication Details
- Journal
- ACS Energy Letters
- Published
- 2025-08-28
- DOI
- https://doi.org/10.1021/acsenergylett.5c01930
- Citations
- 3
- Primary Topic
- Semiconductor materials and interfaces
- Type
- article
- Field-Weighted Citation Impact
- 3.74
Funders
- Australian Government
- Australian Renewable Energy Agency
- Australian Research Council