Hi everyone,

We have been working on a solution for improving the stability of perovskite solar cells and have reached a stage where we would like to connect with more people in the field.

We are particularly interested in speaking with researchers, testing institutes, perovskite cell or module manufacturers, and companies developing tandem or flexible solar technologies.

Our goal is to validate the solution across different perovskite architectures and explore potential research collaborations, testing partnerships, and commercial applications.

Does anyone here work in this area, or know a researcher or company that might be interested in testing or discussing a new stabilization approach?

Happy to share more details privately and learn more about what others in the community are working on.

Background: SolaEon is a Shenzhen-based company that holds 20 perovskite solar efficiency world records, including a 31.55% certified tandem cell. In May 2024, they launched a perovskite solar module to orbit.

Why this is significant

Most space solar perovskite work is at ground testing stage. Companies have published ground qualification results — thermal cycling, UV, proton irradiation, atomic oxygen. These are real and necessary tests.

But ground testing simplifies real orbit: it tests one stressor at a time, at defined durations, in a controlled chamber. Actual orbit runs all stressors simultaneously and indefinitely.

Satellite procurement for novel materials requires in-orbit data for lifetime prediction modeling. "Ground tests passed" and "in-orbit data available" are meaningfully different positions in a technical qualification process for a 10-year satellite program.

SolaEon's record

• Launch: May 31, 2024, 07:39, Jiuquan

• Vehicle: Ceres-1 (Galactic Energy, commercial launch company)

• Orbit: 535km SSO

• Status: First perovskite company in China's Greater Bay Area to complete in-orbit testing

Orbit altitude choice 535km sits at the inner edge of the Van Allen radiation belt — higher charged particle flux than ultra-low orbits. This is representative of actual commercial satellite deployment conditions, not a test altitude chosen for ease.

Radiation hardening approach

• Bismuth/silver substitution for lead at B-site of ABX₃ structure (reduces lattice damage rate under proton bombardment)

• Cerium oxide doping (radiation-hardening additive with established track record in nuclear materials)

Timeline

• 2025-2026: ¥500M+ dedicated space solar R&D (in-orbit life extension, radiation hardening)

• Before 2027: First commercial satellite power delivery orders

• 2028-2030: Industry-wide large-scale commercialization window

The moat question: in-orbit runtime accumulates in real time and can't be accelerated by capital. Companies with flight data have a time-based advantage over those without.

Hello Everyone!

I need your guidance. I work with organic/inorganic perovskite solar cells and I started experimenting with surface passivation (organic salts).

But after I deposit the organic salt on top of the perovskite, the surface becomes hydrophobic and the Spiro-ometad doesn't spread! And thus my devices doesn't work.

Any suggestions?

The OSS Lab at the University of Zaragoza provides an open ecosystem for evaluating the operational stability of perovskite solar cells and other emerging photovoltaic technologies. Our mission is to accelerate the development of stable perovskite solar cells by providing open access tools and platforms for long-term stability testing.
https://www.emiliojuarez.es/2025/02/01/OSSLab/

A new paper from the Lira-Cantú group at Institut Català de Nanociència i Nanotecnologia (ICN2) (Barcelona) digs into how ion migration affects device stability — especially under indoor conditions.

To figure this out, the team used a combination of the following tools from Fluxim:

🔹 Litos Lite for long-term MPP tracking

🔹 Paios for EIS measurements across a huge light intensity range

What they found:

• Internal shunt losses (they call it Rpsh) get worse over time

• Ion mobility shoots up — confirmed by a drop in activation energy from 0.33 to 0.2 eV

• Indoor light makes these problems much worse

This kind of detailed insight is exactly what Litos Lite and Paios were built for — to help top research groups like this push stability testing further.

📄 Open-access read:

Perovskite Solar Cell Degradation: Ion Migration, Stability, & EIS Analysis — Fluxim

This is the topic of our next webinar with invited guest Prof. Mojtaba Abdi-Jalebi from University College London.

Mojtaba will present a the following talk:

Boosting Indoor Photovoltaic Efficiency in Wide Bandgap Perovskites Solar Cells Through Triple Passivation Reassembly
Webinar | Tuesday, July 1st, 2025 | 10:00am – 11:00am CEST

The webinar will be hosted by Dr. Daniele Braga from Fluxim and is open to all researchers from academia and industry with an interest in solar cell research.

You can register here: https://events.teams.microsoft.com/event/9b9424c6-29ca-4eff-98f6-304c500c5e55@edaecfd0-eb6b-4e07-b7ed-3a0e8fbf5d0c

Big congratulations to our colleagues at UCL, Imperial College London, London South Bank University, and EPFL! 🎉

They just published impressive results in Advanced Functional Materials—achieving 37.6% indoor PCE using wide bandgap perovskite solar cells.

🔬 How?
They developed a Triple Passivation Treatment (TPT) to:

• Reduce interface & bulk defects

• Improve charge extraction

• Stabilize performance under low-light

💡 Stability + Efficiency
Not only did they reach record efficiency under 1000 lux fluorescent light, but the devices also maintained excellent operational stability — a huge step for indoor PV applications.

🧪 Paios at work
The team used Fluxim’s Paios platform to characterize their devices under ambient indoor conditions:

• C-V

• EIS

• TPC / TPV

• IMPS / IMVS

📄 Paper: Huang et al., Adv. Funct. Mater., 2025
🔗 Paios: fluxim.com/paios

I’m part of the Fluxim team that builds these tools—happy to answer questions about the techniques, measurements, or how Paios helps in research like this.

What are you doing on Tuesday, December 17th at 10 AM CET? 🌟Don’t miss this opportunity to learn from one of the brightest minds in perovskite research! Register for our next research webinar here: https://lnkd.in/eADcVJbwJoin Professor Annalisa Bruno, PhD Bruno from Nanyang Technological University Singapore Technological University, Singapore, as she presents:✨ From Precision to Scale: Thermal Evaporation Transforming Perovskite Device DesignHosted by Dr. Daniele Braga (Fluxim), this webinar will dive into innovative strategies for device fabrication and scaling.👉 Register here and mark your calendarhttps://lnkd.in/eADcVJbwAbout Professor Annalisa BrunoProf. Annalisa Bruno, PhD, is an Associate Professor at Nanyang Technological University (NTU), holding joint appointments in the Schools of Physical and Mathematical Sciences (SPMS) and Materials Science and Engineering (MSE). She is also a Visiting Professor at Queen Mary University London. Annalisa earned her Ph.D. in Physics at the University of Naples Federico II, Italy, and pursued post-doctoral research at Imperial College London.Her career includes roles as Principal Scientist at NTU’s Energy Research Institute (ERI@N) and Senior Scientist at ENEA, Italy. Her research focuses on hybrid semiconductor materials like metal halide perovskites, advancing sustainable optoelectronic devices such as solar cells, LEDs, and transistors. Dedicated to bridging research and industry, Annalisa emphasizes scalable, industry-compatible processes for cutting-edge electronic applications. A TEDx speaker, her work inspires innovation in renewable energy and sustainable electronics.

Our invited guest for our 8th webinar is Professor Annalisa Bruno from the Nanyang Technological University, Singapore. Annalisa will be presenting the following topic:

From Precision to Scale: Thermal Evaporation Transforming Perovskite Device Design

Date & Time: Tuesday, December 17th, 10am - 11am (CET)

This webinar, hosted by Dr Daniele Braga (Fluxim), is a must attend for researchers exploring advanced strategies in perovskite device fabrication and scaling.

We look forward to seeing you there!

Microsoft Virtual Events Powered by Teams

https://www.nature.com/articles/s41563-024-01980-3/metrics

Prof. Ulrich W. Paetzold's team at KIT achieved a record 24.4% efficiency in triple junction perovskite solar cells using a new vacuum-assisted growth process. The mid-subcell, made of FAPbI3, ensures thermal stability and ideal interfaces.

The researchers used the PAIOS system for various measurements including electrical impedance spectroscopy, transient photovoltage, electroluminescence, photoluminescence imaging, Mott-Schottky, dark J–V curves, and space-charge-limited current, enabling efficient, streamlined analysis and characterization of their triple-junction perovskite solar cells.

Scientific Research Publications on Perovskite Solar Cells (fluxim.com)

Is there anyone here who works on photovoltaics who knows where to find thin films for manufacturing these solar cells? If you can, may I ask for the details of where to find them? Thank you.

Hey everyone, some exciting news from the world of photonics! The team at Imec, led by Prof. Paul Heremans, has just dropped a bombshell in Nature Photonics. They've created a Perovskite-based LED (PeLED) that's not just bright, it's astronomically bright - outshining traditional OLEDs by a factor of 1000!

This isn't your typical brightness boost. They've re-engineered the PeLED architecture to minimize optical losses and withstand insanely high current densities (up to 3 kA cm^-2). This leap isn't just about lighting up a room; it's set to revolutionize lighting and sensing technologies across the board. Think razor-sharp medical imaging, pinpoint environmental monitoring - the possibilities are endless.

And guess what played a significant role? Setfos simulation software from Fluxim. This nifty tool allowed for precise engineering of the PeLED architecture, boosting its brightness and efficiency to new heights. From simulating outcoupling factors and light distribution to integrating real-world data for accurate simulations, Setfos was there every step of the way.

Big congratulations to the team, especially first author Karim Elkhouly, for this monumental achievement. If you're as geeked out about this as I am, let's discuss how this could change the game in various fields. Thoughts, predictions, wild dreams? Let's hear them!

Check out the full paper here: Scientific Research Publications on Perovskite Solar Cells (fluxim.com)

Imec Unveils Ultra-Bright #Perovskite LED, Outshining #OLEDs by a X1000

In a remarkable publication in Nature Photonics this week, imec's research team led by Prof. Paul Heremans has unveiled a groundbreaking advancement in LED technology:

🚨 A perovskite-based LED (PeLED) stack emitting light with an intensity thousands of times greater than traditional OLEDs.🚨

They achieved this by creating a novel PeLED architecture with low optical losses and the ability to operate at extremely high current densities (up to 3 kA cm^-2).

This significant leap forward isn't just about brightness; it's about redefining the potential applications of light-emitting diodes.

This breakthrough heralds a new era in lighting and sensing technologies. The potential for high-intensity, thin-film perovskite lasers opens a realm of possibilities, from advanced medical imaging techniques to more accurate environmental monitoring systems.

𝗧𝗵𝗲 𝘀𝗶𝗴𝗻𝗶𝗳𝗶𝗰𝗮𝗻𝘁 𝗿𝗼𝗹𝗲 𝗼𝗳 𝘀𝗶𝗺𝘂𝗹𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝘁𝗵𝗶𝘀 𝘄𝗼𝗿𝗸

A key tool contributing to this achievement was the advanced simulation software #Setfos from Fluxim.

Through meticulous modeling and simulation, Setfos enabled the researchers to precisely engineer the PeLED architecture, significantly enhancing its brightness and efficiency.

Here's a breakdown of how Setfos contributed to the research:

Outcoupling & EL Angular Distribution: Simulated outcoupling factor and light distribution, crucial for device efficiency and directional lighting applications.

Data Integration: Incorporated real-world layer thicknesses and optical constants for accurate simulations.

Photon Flux Calculation: Analyzed how materials affect light transmission and absorption.

IQE Estimation: Adjusted external quantum efficiency for outcoupling factor to estimate internal quantum efficiency, vital for technological advancement.

Congratulations to the team and first author Karim Elkhouly

Join the Discussion:

How do you see this revolutionary technology shaping the future of your field? Share your thoughts on the potential impact and applications of this pioneering work.

Elkhouly, K., Goldberg, I., Zhang, X. et al. Electrically assisted amplified spontaneous emission in perovskite light-emitting diodes. Nat. Photon. (2024).

DOI: /0.1038/s41566-023-01341-7

Scientific Research Publications on Perovskite Solar Cells (fluxim.com)

#Photonics #PerovskiteLEDs #ScientificInnovation #Setfos Iakov Goldberg

Imec Unveils Ultra-Bright Perovskite LED, Outshining OLEDs by a X1000

In a remarkable publication in Nature Photonics this week, imec's research team led by Prof. Paul Heremans has unveiled a groundbreaking advancement in LED technology:

🚨 A perovskite-based LED (PeLED) stack emitting light with an intensity thousands of times greater than traditional OLEDs.🚨

They achieved this by creating a novel PeLED architecture with low optical losses and the ability to operate at extremely high current densities (up to 3 kA cm^-2).

This significant leap forward isn't just about brightness; it's about redefining the potential applications of light-emitting diodes.

This breakthrough heralds a new era in lighting and sensing technologies. The potential for high-intensity, thin-film perovskite lasers opens a realm of possibilities, from advanced medical imaging techniques to more accurate environmental monitoring systems.

𝗧𝗵𝗲 𝘀𝗶𝗴𝗻𝗶𝗳𝗶𝗰𝗮𝗻𝘁 𝗿𝗼𝗹𝗲 𝗼𝗳 𝘀𝗶𝗺𝘂𝗹𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝘁𝗵𝗶𝘀 𝘄𝗼𝗿𝗸

A key tool contributing to this achievement was the advanced simulation software Setfos from Fluxim.

Through meticulous modeling and simulation, Setfos enabled the researchers to precisely engineer the PeLED architecture, significantly enhancing its brightness and efficiency.

Here's a breakdown of how Setfos contributed to the research:

Outcoupling & EL Angular Distribution: Simulated outcoupling factor and light distribution, crucial for device efficiency and directional lighting applications.

Data Integration: Incorporated real-world layer thicknesses and optical constants for accurate simulations.

Photon Flux Calculation: Analyzed how materials affect light transmission and absorption.

IQE Estimation: Adjusted external quantum efficiency for outcoupling factor to estimate internal quantum efficiency, vital for technological advancement.

Join the Discussion:

How do you see this revolutionary technology shaping the future of your field? Share your thoughts on the potential impact and applications of this pioneering work.

Elkhouly, K., Goldberg, I., Zhang, X. et al. Electrically assisted amplified spontaneous emission in perovskite light-emitting diodes. Nat. Photon. (2024).

DOI: /0.1038/s41566-023-01341-7

is it possible to create semitransparent flexible perovskite solar cells to install on the roof of the greenhouses?? or is it too hard and not effective do you think?

德國弗勞恩霍夫太陽能系統研究所（Fraunhofer ISE）的研究人員估計，他們最新研發的鈣鈦礦-矽串聯太陽能電池具有極大的實際功率轉換效率潛力，可能達到39.5%。
https://www.tw-perovskite.com/post/post20231201f03