Bruno Ehrler

Bruno Ehrler appointed new director of AMOLF - AMOLF The Board of NWO-I has appointed Prof. Dr. Bruno Ehrler as the new director of AMOLF, the national institute for research on functional complex matter. Effective 1 January 2026, Ehrler will succeed Pr...

Big news 🎉 From Jan 1, 2026, I’ll be the new Director of AMOLF — while continuing to lead my research group.
AMOLF is a magical place, and I’m honoured to help shape its future. ✨🚀
amolf.nl/news/bruno-e...

Great summer school with our LMPV Sustainable Energy Materials department, in France. ☀️🎓
Lots of science, team building, creativity, and fun! I’m grateful for working with such inspiring people!

Oil prices spiked due to more aggression from a country currently committing genocide.

Renewable energy prices were unaffected.

Do you like entrusting your country's economy to the whims of genocidal maniacs?

If not, you have options.

Ah thanks, I missed that wind was part of it. For the BESS, perhaps one could add it as growth in %age share of electricity demand?

Intensity-Modulated Photoluminescence Spectroscopy for Revealing Ionic Processes in Halide Perovskites Mobile ions limit halide perovskite device performance, yet quantifying ionic properties remains challenging. Frequency-domain electrical techniques are restricted to operational devices, and the resulting signals are often dominated by interfacial recombination which obscures ionic contributions. Here, we introduce intensity-modulated photoluminescence spectroscopy (IMPLS) as a fully optical alternative, where the amplitude and phase of the photoluminescence intensity is measured as a function of excitation modulation frequency. IMPLS is demonstrated on a Cs0.07(FA0.83MA0.17)0.93Pb(I0.83Br0.17)3 film. Fitting the data with an optical equivalent circuit model reveals two characteristic lifetimes: τchar = 2.1 ms and 77 s, likely corresponding to defect formation and ionic diffusion, respectively. The diffusion feature is consistent with intensity-modulated photocurrent/photovoltage spectroscopy (IMPS/IMVS) measurements on corresponding full devices. Importantly, IMPLS enables contact-free characterization of slow processes for all perovskite sample types, including films and devices, significantly expanding the techniques available for understanding mobile ions in these materials.

#OA article from @brunoehrler.bsky.social and Eric Garnett group
Intensity-Modulated Photoluminescence Spectroscopy for Revealing Ionic Processes in Halide Perovskites | ACS Energy Letters pubs.acs.org/doi/10.1021/...

New AMOLF efficiency charts are out! Solar PV R&D has raised the bar with five new records☀️ 🏆
🌟3 single-junctions: crystalline Si to 27.8%, CZTSSe to 15.8%, & perovskite to 27.3%.
🌟2 tandems: perovskite-silicon to 34.9% & perovskite-CIGS to 24.6%. Credit to Daphne Dekker.👏
amolf.nl/research/sus...

Intensity-Modulated Photoluminescence Spectroscopy for Revealing Ionic Processes in Halide Perovskites Mobile ions limit halide perovskite device performance, yet quantifying ionic properties remains challenging. Frequency-domain electrical techniques are restricted to operational devices, and the resu...

Impedance spectroscopy is a powerful tool to study perovskite solar cells. Did you know you can also study the impedance entirely optically?💡
Read how defects and ions can be tracked with optical impedance called IMPLS, even when the solar cell is not fully complete.☀️
📖 pubs.acs.org/doi/10.1021/...

Very nice visualization! What if you add wind capacity and battery storage capacity?

Experts uncover unexpected benefits of combining solar panels with livestock: 'Enough ... energy to power 70,000 homes' The Myrtle solar farm in Brazoria County, Texas, is a shining example of sustainability.

Solar farms and livestock farms are a match made in heaven. There are few things more delightful than the Google image results for "goats and solar farms".
www.thecooldown.com/green-tech/m...

Could this be the beginning of a global peak in CO2 emissions?

#OA Viewpoint by @brunoehrler.bsky.social
How Many Mobile Ions Can Electrical Measurements Detect in Perovskite Solar Cells? | ACS Energy Letters pubs.acs.org/doi/10.1021/...

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Electrical ⚡ measurements are popular for probing ion migration in perovskite solar cells - but they only detect mobile ion density when it's low. At high density, the field is screened and only ionic conductivity (density × mobility) can be measured. 👉 pubs.acs.org/doi/10.1021/...

Tulpen Apr25 This is "Tulpen Apr25" by Bruno Ehr on Vimeo, the home for high quality videos and the people who love them.

A cleanser for the timeline: 🌷 in 🇳🇱
vimeo.com/1072813143/0...

Reminder: Advanced economies have the power to drastically cut greenhouse gas emissions within just a couple of decades. A cleaner future is possible. 🌍

That is a good point. I always use the example of the Taum Sauk hydro storage in my lectures. Great story, check it out!
Would be good to compare environmental damage per kWh with minig for battery materials. And mining for coal, oil, and gas.

Looking forward to the #ACSSpring2025! If you are in San Diego, I’d be glad to catch up.

I was surprised, too. It would be interesting to see the 2023 numbers. And I am wondering if H2 storage is included.

I'm not sure we should look at the IER for unbiased information about the future energy supply.

I think these are not the residential ones. I am guessing most of them in cars as 12V batteries.

One of the most important graphs of the energy transition. The mindblowing progress in battery storage. Storing power in lithium-ion batteries is now cheaper than in hydropower dams.💡

This changes everything.

Graph from www.nature.com/articles/nen... with cost for 2023 added.

🔋>🏔️ --> ☀️>🛢️.

Meta used at least 39 of my works to train their AI, much of it under CC-BY license.
Search for your own name here: www.theatlantic.com/technology/a...

Solar PV is big business. Which countries will participate in the market?

Circularly polarized electroluminescence from chiral supramolecular semiconductor thin films Current organic light-emitting diode (OLED) technology uses light-emitting molecules in a molecular host. We report green circularly polarized luminescence (CPL) in a chirally ordered supramolecular a...

Glad we could contribute a small part to recent work by Rituparno Chowdhury, Marco Preuss, Richard Friend, Bert Meijer and many others on chiral organic crystals. Their arrangement results in chiral light emission of OLEDs. Daphne Dekker (AMOLF). In @science.org:
www.science.org/doi/10.1126/...

It took decades to install the first 700 GW of solar PV. Now the world installs them in a year.

BloombergNEF expects up to 700 GW of new solar in 2025 BloombergNEF says global solar installations could reach 700 GW in 2025, with additions rising to 753 GW in 2026 and 780 GW in 2027.

It’s official, it’s in pv magazine USA, BloombergNEF projects 698 GW of new capacity in 2025.

I’m gonna write an article that it may actually break 800 GW due to influence by @robcarlson.bsky.social.

Wind and solar are best friends. We do not need as much storage as one might expect with 100% renewables.

Reality check.
Thank you, Financial Times.

It is interesting to see how the anti-immigrant AfD party won votes in the German elections predominantly in places with very few people with an immigration background. Once you know immigrants, you stop being afraid of immigration.

Bernie Sanders Dismantles Elon Musk, Mark Zuckerberg, Jeff Bezos Oligarchy YouTube video by electron media group inc.

I hope we will see our friends across the Atlantic coming out of this mess as a free democracy. I hope the message of @sanders.senate.gov will spread wide and far.
www.youtube.com/watch?v=btdY...

Here you go: pubs.rsc.org/en/content/a...