Bruno Ehrler
@brunoehrler.bsky.social
Physicist, solar cell researcher at AMOLF Amsterdam. He/him.
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...
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...
amolf.nl
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.
#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/...
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.
pubs.acs.org
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...
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/...
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...
pubs.acs.org
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...
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.
thecooldown.com
#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/...
How Many Mobile Ions Can Electrical Measurements Detect in Perovskite Solar Cells?
pubs.acs.org
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/...
How Many Mobile Ions Can Electrical Measurements Detect in Perovskite Solar Cells?
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pubs.acs.org
Reminder: Advanced economies have the power to drastically cut greenhouse gas emissions within just a couple of decades. A cleaner future is possible. 🌍
Simon Evans@drsimevans.carbonbrief.org · 2y agoNEW: Govt data CONFIRMS our estimate that UK greenhouse gas emissions fell by 4% to 371MtCO2e in 2024 As we said earlier this month, this took UK emissions to lowest level since 1872 – with coal use at its lowest since 1666 (!) Our analysis: www.carbonbrief.org/...
Looking forward to the #ACSSpring2025! If you are in San Diego, I’d be glad to catch up.
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...
Michael Livingston@michaellivingston.com · 2y agoMeta used at least 16 of my books, and numerous articles, to help train the AI it will use to make billions. Authors, search your name here: www.theatlantic.com/technology/a...
Solar PV is big business. Which countries will participate in the market?
Commercial Solar Guy@commercialsolarguy.com · 2y ago1 TW of solar next year? True that it’s just a number, but what makes up the number is massive: *$100 billion in solar panel value. *$500 billion in human labor. *$75 billion in inverters. *$100 billion in solar racking. *$200 billion in electrical gear. *1.5 PWhs of new electricity - out of 30.
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/...
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...
science.org
It took decades to install the first 700 GW of solar PV. Now the world installs them in a year.
Commercial Solar Guy@commercialsolarguy.com · 2y agoIt’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.
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.
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.
pv-magazine.com
Wind and solar are best friends. We do not need as much storage as one might expect with 100% renewables.
Commercial Solar Guy@commercialsolarguy.com · 2y agoSeasonal Symmetry in Europe
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.
Julius Kölzer@juliusk.bsky.social · 2y agoEin sehr ähnliches Bild zeigt sich, wenn man stattdessen den Anteil der Bevölkerung mit Migrationshintergrund berücksichtigt. Viel mehr ist die AfD eben gerade dort erfolgreich, wo wenige Nichtdeutsche und Deutsche mit Migrationshintergrund leben.
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...
Bernie Sanders Dismantles Elon Musk, Mark Zuckerberg, Jeff Bezos Oligarchy
YouTube video by electron media group inc.
youtube.com
Neural networks consist of synapses and neurons 🧠. Perovskites make great artificial synapses, and now also neurons! Just off the press is Jeroen's article on stochastic spiking neurons, which use only 20–60 pJ per spike and can be easily integrated into networks.💡 pubs.rsc.org/en/content/a...
Enjoying the Next Generation Solar Energy conference in Nürnberg organised by the Friedrich-Alexander University Erlangen-Nürnberg and the Helmholtz Institute Erlangen-Nürnberg for Renewable Energies (HI ERN). Lots of insight into (automated) solar PV research, and a beautiful Christmas market!
Soon, we will reach parity between the production frequency of solar panels and AC current frequency in most electric grids: 50 Hz. A new type of grid parity. (we are now producing almost 50 solar panels per second globally, ~ 600 GW/year)
The new AMOLF solar cell efficiency charts are out! An incredible six new records: c-Si 27.4%, CdTe 23.1%, CZTS 13.2%, and SbSSe 10.7%perovskite-silicon 34.6%, perovskite-organic 25.1%. Solar cell research remains a remarkably dynamic field!☀️ ⚡ Credits to Daphne Dekker. More info at www.lmpv.nl/db/
Inspiring article on Increasing diversity in conference speaker programmes "if you are a white or Asian man, [...], and you are invited to speak at a conference, do check the speaker list and get in touch with the organizers if you think it can be made more diverse." www.nature.com/articles/s41....
Increasing diversity in conference speaker programmes - Nature Photonics
Nature Photonics - Increasing diversity in conference speaker programmes
nature.com
