The experimental parts of the study are supported by
@carlsbergfondet.dk (Grant No. CF24-0200)

Excited to share our work on quasi-1D chalcohalides — optical gaps from 1.3–2.1 eV and we’ve mapped out their electron-phonon coupling. These materials have some seriously interesting optoelectronic possibilities 🤘
doi.org/10.1039/D5TA...

The experimental parts of the study are supported by @carlsbergfondet.dk (Grant No. CF24-0200)

BaZrS₃ lights up!!! 🔥✨☀️
From high-quality single crystals, we show BaZrS₃ is an intrinsically strongly luminescent chalcogenide perovskite. The carrier lifetime is short, the electron–phonon coupling a bit unusual – but it glows bright!
Read it before your neighbour 👉 doi.org/10.1002/adom...

Experimental parts are supported by @carlsbergfondet.dk (Grant No. CF24-0200) and @dg.dk (Grant No. 0217-00333B)

Not all defects are killers! 🔬 Our combined theory-experiment study shows an intrinsic point defect tolerance in trigonal selenium, suggesting interface and extended defects to limit performance. Selenium is still in the game for tandem and indoor PV! ☀️⚡ doi.org/10.1039/D4EE...

Intrinsic & extrinsic (dopant) defect chemistry of trigonal Selenium for PV, incl metastable states & non-radiative recombination ⬇️

Combined theory & expt analysis, we find an intrinsic tolerance to 𝘱𝘰𝘪𝘯𝘵 defects, with GBs/interfaces the limiting factor for PV 📈
pubs.rsc.org/en/Content/A...

#PVMagazine just highlighted our most recent work on characterizing selenium thin film solar cells using the recently developed carrier-resolved photo-Hall technique! Check it out! 😎 🔥

www.pv-magazine.com/2025/04/15/n...

Supported by @carlsbergfondet.dk (Grant No. CF24-0200) and @dg.dk (Grant No. 0217-00333B)

Determining "simple" material properties is not a simple task! Here, we combine carrier-resolved photo-Hall measurements with other advanced characterization techniques and device simulations to resolve reported discrepancies in selenium thin films! 🔬 ☀️ ⚡

doi.org/10.1103/Phys...

Additionally, it’s worth noting they got 13.2% using the hydrogenation approach very recently (not published)

www.unsw.edu.au/newsroom/new...

You gotta give them more tips and tricks, Aron! Next step, how do you get the TLC from your predicted 23.1% in the pure sulfide compound to lets say 26%? 😄 (no selenides allowed!) - I particularly love how optimistic the TLC approach is, very nice work! 😎

The latest version of 𝙙𝙤𝙥𝙚𝙙 (and 𝑺𝒉𝒂𝒌𝒆𝑵𝑩𝒓𝒆𝒂𝒌), our defect modelling python packages, have been released!

Incl:
- Major efficiency updates
- Advanced defect/carrier thermodynamics w/custom constraints
- Auto shallow defect handling
- CC diagram generation
...🧵👇

Check out our recent work wherein we demonstrate the first monolithic selenium/silicon tandem device, published in PRX Energy!

doi.org/10.1103/PRXE...