The Impact of Chirality on Singlet Fission and Triplet Fusion: A Molecular Twist for Photon Management Chirality has recently emerged as a new means to profoundly impact the properties of organic semiconductors for spin-optoelectronic applications. Yet, a clear mechanistic understanding of chiral structure–property relationships remains absent to date, particularly for photon interconversion processes such as singlet exciton fission and triplet fusion. In this perspective, we highlight recent work that investigates chiral structures for these processes. We discuss the various ways in which chirality can impact such conversion processes and suggest ways to leverage it to improve photon management for both energy applications and quantum information science.

Check out our latest in @acs.org ACS Energy Letters:
Damon explores how #chirality may impact singlet fission and triplet fusion in molecular semiconductors as a new twist for efficient photon management, boosting performance of solarcells, displays and more. #OpenAccess pubs.acs.org/doi/10.1021/...

Richard Robson always had very small research groups and limited, sporadic funding. This has never been better illustrated than by the acknowledgement slides to the Nobel lectures of Robson, Kitagawa, and Yaghi (only 1 of 4 slides shown below). We punched above our weight! #ozchem #NobelPrize

In case you’re interested, some stats here. australiainstitute.org.au/post/in-2023...

Kiwi scientist here postdoc’ing abroad, keep up the good work. Someone needs to say something!

Viewpoint by @schmidtim.bsky.social and collaborators
Singlet Fission Provides a Scalable Pathway to High Efficiency Silicon Photovoltaics | ACS Energy Letters pubs.acs.org/doi/full/10....

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.

Latest work from @schmidtim.bsky.social Tayebjee and collaborators
Singlet Fission c-Si Solar Cells: Beyond Tetracene | ACS Energy Letters pubs.acs.org/doi/10.1021/...

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 ...

Our team at UNSW Science and Engineering is making progress with singlet fission solar cells. pubs.acs.org/doi/10.1021/... @unswchemistry.bsky.social

Yes, I will be postdoc’ing on the Sion campus where I am told there is a bit more temperature regulation.

Something I have to look forward to 😅

Solid-state sensitized liquid-chromophore triplet fusion upconversion Photochemical upconversion has several potential applications in optoelectronics. However, there is yet to be demonstrated a rational approach to high efficiencies in nanoscale solid state devices. He...

Latest upconversion research from our labs:

chemrxiv.org/engage/chemr...

Honored to have been included in the excellent lineup of young scientists to present their work at the Lindau Nobel Laureate Meetings.

Thanks to the SIEF-AAS fellowship for the support.

#lino25

The Australian Academy of Science
UNSW
School of Chemistry UNSW

Broadband transient full-Stokes luminescence spectroscopy - Nature A high-sensitivity, broadband, transient, full-Stokes spectroscopy setup is demonstrated, which can detect quickly varying small signals from chiral emitters.

Excited to share in @nature.com today: Broadband transient full-Stokes luminescence spectroscopy - detecting the most subtle changes in light polarization over time with unprecedented sensitivity. Grateful for the team that made this possible!😊 www.nature.com/articles/s41... #chirality #light

Started the day with an informative tour of Bayer Pharmaceuticals Berlin and went onto Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), where our early career researchers presented short #chemistry talks and then went onto tour the #nmr and high throughput screening facilities

Made it to Berlin for the first leg of the SIEF-AAS Lindau fellowship looking forward to a week of visiting labs and industry along with the Australian delegates! #LINO25

A box of Koalas arrived today from the Australian Academy of Science. The countdown to #LINO25 has begun!

Prof Scolyer, coauthor and trial patient in the publication, is an Aussie hero!

New #crazywavefunction project paper. We use a tesselation of the 3Nd wave function to isolate the energies of bonding electrons. The C-C bond is just like H2! #chemsky
#theochem

pubs.acs.org/doi/10.1021/...

🤩

#OzChem

Ten Australian scientists to attend the 2025 Lindau Nobel Laureate Top row from left: Mr Damon de Clercq; Dr Elena Gorenskaia; Ms Made Ganesh Darmayanti; Dr James Watson; Ms Jess Algar. Bottom row: Dr Wenchao Duan; Dr Tuan Sang Tran; Dr Saheli Biswas; Dr Ken Aldren

Excited to join the Australian delegation for the 74th Lindau Nobel Laureate meeting!

Thank you @unswchemistry.bsky.social, @schmidtim.bsky.social for all the support during my PhD!

#auschem #realtimechem #LINO25

www.science.org.au/news-and-eve...

Would have joined online, but unfortunately it was prime sleep time in Sydney. Congratulations @feldmannlab.bsky.social!

Not to mention the firing of air traffic controllers….

Was there on Saturday, long lines. I am not convinced.

Submitted and now counting down the days for the next election…

Chiral light–matter interactions in solution-processable semiconductors - Nature Reviews Chemistry Endowing chirality onto solution-processable semiconductors unlocks new bounds for their spin and optoelectronic properties. This Review discusses the synthesis, properties, characterization methods, ...

Check out our latest review on Chiral Light-Matter Interactions in Solution-Processable Semiconductors, now out in 𝙉𝙖𝙩𝙪𝙧𝙚 𝙍𝙚𝙫𝙞𝙚𝙬𝙨 𝘾𝙝𝙚𝙢𝙞𝙨𝙩𝙧𝙮! @natrevchem.bsky.social
A huge team effort led by our @zacharyvanorman.bsky.social !

www.nature.com/articles/s41...

Free access link: rdcu.be/eagsq

Yay!

Enroute to NZ for #AMN11 and a post thesis submission holiday.

The Complicated Morality of Named Inventions

@brunoehrler.bsky.social et al. wrote a good article in 2021 on why the community should move on from the SQ limit. Clearly some people have not got the memo.

The article: pubs.acs.org/doi/10.1021/...

I know the world has bigger problems at the moment but I thought the PV community had moved on.

PhD done!