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A major challenge in OLED research is determining where optical energy is lost — and whether a device modification really improves light extraction. The research team from Kyung Hee University, the University of Cologne and the University of St Andrews addressed this in a new Nature Photonics paper on quantum-dot-coupled inverted phosphorescent OLEDs. Their QD interlayer redirects energy that would otherwise be lost through surface plasmon polariton modes. The optimized device reached 20.95% EQE versus 15.67% for the reference OLED, together with substantially improved operational stability. This is where Setfos contributed. The researchers used #Setfos to analyse optical modes and power dissipation, investigate outcoupling and refractive-index effects, and optimize OLED layer thicknesses. This helped separate conventional multilayer optical effects from the additional QD-mediated mechanism investigated with 3D FDTD. For OLED researchers trying to understand where photons go inside their device before fabricating the next stack, optical simulation provides that insight. See how Setfos supports OLED optical modelling → fluxim.com/setfos Congratulations to Thi Thuy Truong, Hai Truyen Dang, Nisha Vergineya S, Malte Gather and Jang Hyuk Kwon on this excellent publication in Nature Photonics. Thank you as well for your trust in Setfos and for using it as part of your OLED optical analysis. We are pleased to see Fluxim tools contributing to research that advances understanding of optical losses and light extraction in phosphorescent OLEDs. Truong, T. T., Dang, H. T., S, N. V., Gather, M. C., & Kwon, J. H. (2026). Inverted phosphorescent OLEDs with plasmon coupling from quantum dot interlayers for enhanced efficiency. Nature Photonics. https://lnkd.in/ejSeWWTj

Our research webinars are back after the summer break! And the question we want to answer is... How can we extract meaningful physical parameters from perovskite solar cells more efficiently? Dr. Evelyne Knapp from the ZHAW School of Engineering will answer this is and more when she presents: Efficient Multi-Objective Parameter Extraction in Perovskite Solar Cells Tuesday 22nd September at 10am CET Register here: https://lnkd.in/eAraWPBi See you there.

JV Hysteresis Is Data, Not an Artifact Scan your perovskite cell forward and backward and you get two different JV curves. Frustrating? Only if you can't explain it. Setfos couples mobile ionic charges directly into the drift-diffusion solver. That means you can simulate scan-rate-dependent JV curves and see exactly how ion migration redistributes the internal field in your device. Instead of reporting hysteresis as an artifact, you can quantify the ion density and mobility behind it. Try Setfos free for one month. https://lnkd.in/gcY652j

Our next Research Webinar is next Tuesday at 10am CEST: Joining will be invited guest Prof. Martin Stolterfoht form teh The Chinese University of Hong Kong. Martin will be presenting: The role of mobile ions and shallow traps in governing degradation losses in perovskite solar cells Following Prof. Stolterfoht's presentation, our host, Dr. Matthias Diethelm, will give a second talk: Ion parameter extraction in perovskite solar cells then it´s Q&A time. Register here: https://lnkd.in/e4HA-V_W

Our 20th webinar of invites a guest who is Associate Professor at the The Chinese University of Hong Kong (CUHK). Prof. Martin Stolterfoht will be presenting a talk on "The role of mobile ions and shallow traps in governing degradation losses in perovskite solar cells". Our host, Dr. Matthias Diethelm, will also give a presentation on "Ion parameter extraction in perovskite solar cells" Join us on Tuesday 9th June at 10am CEST (4pm CDT) https://lnkd.in/e4HA-V_W

How do mobile ions and shallow traps contribute to degradation losses in perovskite solar cells? Join us for Fluxim’s 20th webinar with invited speaker Prof. Martin Stolterfoht, Vice-Chancellor Associate Professor in the Department of Electronic Engineering at The Chinese University of Hong Kong (CUHK). Prof. Stolterfoht leads the Photon Energy Conversion Lab at CUHK, where his group works on understanding and improving the stability of perovskite-based solar cells and related optoelectronic devices. He will present: The role of mobile ions and shallow traps in governing degradation losses in perovskite solar cells Following his presentation, Dr. Matthias Diethelm from Fluxim will give a talk on: Ion parameter extraction in perovskite solar cells 📅 Tuesday, 9 June 2026 🕙 10:00-11:00 CEST 🕓 16:00-17:00 Hong Kong Time This webinar is relevant for researchers working on perovskite solar cells, tandem photovoltaics, device stability, ion migration, and optoelectronic characterization. Register here: https://lnkd.in/e4HA-V_W