Perovskites Innovation Day

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Perovskite solar cells (PSCs) have emerged as a transformative photovoltaic technology due to their high efficiency, low costs, and versatile applications. Over the past decade, significant progress has been made in advancing their industrialization, with lab-scale efficiencies now close to 27%, rivaling traditional silicon-based solar cells. Pilot production lines have been established, and many startups are transitioning from R&D to commercial-scale manufacturing. With ongoing investments and collaborations, the perovskite solar cell industry is poised to play a transformative role in the global renewable energy landscape. This presentation will firstly provide an in-depth analysis on the key issues determining the commercial application of perovskite photovoltaic technology, from the perspectives of product efficiency, module lifespan, system integration capability, levelized cost of energy and return on investment. Then the presentation summarizes recent technological breakthroughs and industrial progress in efficiency, stability, and scalable production. Last but not least, the presentation will showcase the rapid maturation of the technology with real-world project cases and release long-term actual power generation data demonstrating the reliability of the perovskite products.

Building-integrated photovoltaics (BIPV) are transforming solar energy integration in modern architecture. This presentation explores the latest advancements in perovskite-based BIPV modules, which provide a striking aesthetic and functional enhancement over traditional BIPV solutions. Offering a spectrum of vivid colors and customizable transparency levels, perovskite BIPV seamlessly integrates into facades, skylights, and balcony photovoltaics. Beyond design flexibility, these modules maintain high efficiency and lightweight adaptability, making them an ideal choice for urban environments. Through real-world case studies, we will highlight key performance insights and demonstrate how perovskite BIPV is shaping the future of sustainable building design.

Flexible and lightweight photovoltaics have attracted great attention in recent years owing to their application in wearable and portable electronic devices. However, the use of polymer substrates obstructs the fabrication of highly efficient and stable devices due to their limitations like low transmittance, poor temperature tolerance, photodegradation, high material cost, etc. In addition, conventional flexible transparent electrodes (TEs) such as indium tin oxide (ITO) deposited on polymeric substrates have poor electro-optical properties compared to their glass counterpart and are still brittle, which not only negatively affect the performance but also the flexibility/bendability. Here in this talk, I will discuss in detail utilizing a kitchen-grade aluminium foil providing a lightweight, low-cost, mechanically flexible substrate-cum-electrode, for the very first time, in fabricating perovskite solar cells. We achieved a high power per unit weight of over 3.5 W/g, much higher than conventional solar cells. The present work traces a way towards the fabrication of lightweight and flexible photovoltaic/optoelectronic devices by incorporation of metallic foil as substrate-cum-electrode.

We present our newest development, an innovative EIL material that demonstrates a 15-fold improvement in lifetime compared to Liq. This new material functions effectively as a standalone EIL layer or as a combined EIL and doped ETL material. Due to its good solubility in polar solvents, it might become an attractive EIL material in printed applications.

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Indoor energy harvesting technologies are transforming the landscape of smart devices by enabling maintenance-free and sustainable power solutions. Perovskite-based photovoltaic panels have emerged as a highly efficient solution for capturing energy from artificial light, addressing the limitations of disposable batteries in IoT and industrial applications. This innovation significantly reduces operational disruptions, lowers total cost of ownership, and contributes to environmental sustainability by eliminating battery waste. Recent advancements in indoor photovoltaics have unlocked new possibilities for powering low-energy devices, from smart sensors to consumer electronics. Key technical insights, efficiency, and real-world integration challenges will be discussed, highlighting how these solutions can drive a more reliable and sustainable future for energy-autonomous electronics.

As the photovoltaic industry moves toward commercialization of perovskite solar cells (PSCs), scalable and cost-effective manufacturing processes are crucial to bridge the gap between laboratory research and industrial production. In this presentation, we will outline the key steps of our manufacturing process, highlighting its potential for large-scale production. We will discuss our approach to material synthesis and layer deposition, focusing on the challenges of optimizing material properties for improved stability and efficiency. Additionally, we will explore the advantages of our scalable printing techniques and the strategies we are implementing to enhance reproducibility and yield. Finally, we will discuss our involvement in European research projects such as Solmates, Diamond, and Pacstate, which focus on sustainable, cost-effective manufacturing solutions to drive the widespread adoption of perovskite solar technology. Despite recent advancements, several challenges remain, including process standardization and long-term stability. We will present insights from our experience and discuss future directions to enable the mass production of PSCs, paving the way for their integration into the global energy market.

All-perovskite tandem solar cells hold the promise of a scalable, low-cost, flexible, and high-efficiency photovoltaic technology. However, scaling up to the dimensions targeted
by commercial applications poses a number of challenges. Most importantly, material quality and uniformity of the solution-processed absorber layers is more difficult to control on large area using deposition techniques beyond spin-coating, such as slot-die
coating or ink-jet printing. Similar uniformity issues apply to the charge transport layers, especially the ultra-thin self-assembled monolayers used for interface passivation and enhancement of contact selectivity. Hence, we expect local fluctuations in active area quality to affect the overall photovoltaic performance on the level of monolithic interconnected thin film modules. Also, the monolithic interconnection of the thin film modules requires special considerations regarding the implementation of bypass diodes to prevent damage to the material in the case of partial shading that forces the affected cell into reverse bias. In fact, reverse-bias breakdown in perovskite solar cells is receiving increased attention due to the peculiar role of the mobile ions present in these materials, as the rearrangement of ions increases the strength of the field in the device region where reverse-bias breakdown occurs. A further salient feature of the perovskite absorber materials is their large radiative efficiency, which opens up opportunities for luminescent coupling in tandems, but also poses challenges due to the impact on any luminescence-based characterization experiment. In our presentation, we introduce a multi-scale approach to the simulation of all- perovskite tandem modules. To this end, current-voltage characteristics of small-area all- perovskite tandem solar cells are obtained from a calibrated opto-electronic device model using a dedicated drift-diffusion simulation that includes perovskite-specific features such as mobile ions and photon recycling. These JV curves are subsequently
used as local 1D coupling laws connecting the 2D electrodes in a quasi-3D large area finite-element large-area electro-thermal module simulation that then provides the module characteristics under full consideration of spatial variation in active area quality, resistive electrode losses, and module interconnection details.
The simulation framework enables the analysis of losses and optimization of performance on device and module levels, including the quantification of performance
gain due to photon recycling and bifaciality. The impact of non-uniformities in cell-level
performance on the photovoltaic characteristics of monolithically interconnected large-
area all-perovskite tandem modules is quantified, addressing a crucial aspect of the up- scaling challenge for this promising photovoltaic technology.

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The primary challenge in commercial adoption of perovskite solar cells (PSCs) is the long-term stability of the perovskite layer. These layers have multiple degradation pathways, and barrier films play a crucial role in enhancing the durability and performance of these devices. Barrier films act as protective layers, shielding the sensitive components of PV devices from environmental factors such as moisture, oxygen, and UV-catalyzed volatilization. The encapsulation of PSCs with high-quality barrier films significantly improves stability, enabling them to maintain high efficiency even under prolonged exposure to degradation conditions. PET and other polymer films with sputtered optical coatings allow for lightweight, high performance barrier properties while still allowing optical effects that can improve the power conversion efficiency (PCE) of the solar device. These films also enable Roll-to-Roll manufacturing and integration, further reducing the cost. This presentation will discuss various encapsulation methods, their respective barrier properties, common challenges for each method, and current work on the addition of functionality to barrier films with the use of sputtered coatings. By mitigating the adverse effects of environmental variables, barrier films contribute to the protection of PSCs, allowing for more reliable and sustainable solar energy solutions and wider market adoption of PS technology.

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The Printed Electronics industry is gaining increasing significance, and market discussions have highlighted a growing demand to scale production from laboratory to industrial levels. While our industrial printing solutions effectively serve high-volume production, we recognize the need for intermediate production capacity—beyond flatbed screen printing but not yet ready for full-scale industrial investments. During the presentation, we will explore a typical day at our “Printing as a Service” facility,
demonstrating the practical application of our print systems, rotary screens and exposure lasers. We will also discuss the impact of these innovations on production processes, focusing on enhanced precision, efficiency, and scalability for the Printed Electronics sector.

Authors: Daan de Kubber, Tom Overgoor, Ben Robesin

Screen-printed electronics offer a cost-effective and scalable method for manufacturing a wide range of electronic components, including sensors, flexible circuits, and wearables. However, transitioning from research and development (R&D) to small-scale production, and eventually to fully automated high-volume manufacturing, requires strategic planning and investment in technology. This presentation explores key considerations for scaling production while maintaining quality, efficiency, and cost-effectiveness.

Screen-printed electronics offer a cost-effective and scalable method for manufacturing a wide range of electronic components, including sensors, flexible circuits, and wearables. However, transitioning from research and development (R&D) to small-scale production, and eventually to fully automated high-volume manufacturing, requires strategic planning and investment in technology. This presentation explores key considerations for scaling production while maintaining quality, efficiency, and cost-effectiveness.

Over the past decade, wearable technologies have shifted the paradigm; enabling a transition from invasive and complex procedures, to non-invasive and user-centric solutions that empower both healthcare providers and patients. We will explore how these technical innovations are reshaping clinical practices, improving patient outcomes, and unlocking unprecedented opportunities for preventive care and real-time monitoring.
Speaker Alix Joseph – Sales & Marketing Director
Alix Joseph works at Linxens as Sales & Marketing Director since November 2022, focusing on bringing new technologies to connected health solutions. Alix has had over 20 years of experience and is an expert in reproductive health and infectious diseases. Prior to joining Linxens, Alix was a Senior Manager for Business Development of Global Health Equity at ThermoFisher and was responsible for driving the strategy and business opportunities in Emerging countries for molecular diagnostics for the WHO and NGOs that were established in Europe. Alix also spent 15 years with PerkinElmer, most recently as sales director of France and Africa, where he was responsible to create a sales organization for new molecular testing assays. He stayed in this position for 10 years and was then appointed as Global Business Unit director for Reproductive Health, leading strategy and product marketing. Alix has been active supporting Non-governmental agencies to raise the clinical offering in Emerging countries, and successfully drove the launch of innovative products such as Array CGH and BACs-on-Beads technologies. He is also a member and investor of Angles Santé Federation, the largest business angels federation, that focuses on health-tech and med-tech in Europe. Alix holds a Master degree in Biotechnologies from Aix-Marseille University and earned an Executive MBA in General Management from Paris Dauphine University and Ecole Superieur de Gestion in Montreal (ESG-UQAM). Alix Joseph is a Wing Chin Instructor and President of Shaolin Wing Chun Academy. He has been named World Champion in Free Fighting in 2018 and 2022.

Developing medical devices is a long and complex process with many potential pitfalls. One emerging approach to de-risk the development phase of medical devices are dedicated pilot line services which pool the know-how of RTOs and companies in a particular field. These partnerships, forged through experience and collaboration, help assess the technology readiness of start-ups and companies in relatively short and in a structured process. Pilot lines are able to provide independent design reviews to evaluate the technology maturity of a customer's solution, identify critical steps to reduce risks, and spot potential technology gaps.
As an example, this presentation will highlight VTT’s role and partnerships in the MedPhab pilot line which focusses on pilot line services to speed up the development of photonic medical devices. One of the standout features of MedPhab is its "Front Office," a single entry point that gives customers access to the expertise of six leading European RTOs and industrial partners. The presentation will describe the process on how to engage with a suitable pilot line, walk through the steps of design review process and how to successfully work the relevant RTOs and companies on turning a new product vision into reality.

Modern fully automatic screen printing systems set new standards in precision, flexibility and efficiency. Innovative technologies ensure gentle material handling, while high-precision alignment systems ensure exact printing results. The adaptability to different print formats and material types enables a wide range of applications - from printing on flexible films to rigid substrates.
Automated feeding and alignment systems optimize the entire printing process and ensure consistently high quality, even in demanding industrial applications. The combination of precision and automation offers decisive advantages, particularly in areas such as electronics production, the automotive industry or the production of decorative and functional keyboards. The option of individual configuration and expansion makes modern screen printing systems a future-proof solution for industrial production processes.

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Platinum (Pt)-cured silicones are gaining in popularity, emphasising addition curing over traditional peroxide methods. They ensure purity and efficacy, resulting in stronger and more aesthetically pleasing products. However, when curing is initiated by mixing parts A and B, the pot life is limited (minutes to hours) depending on the type of silicone and temperature. This creates practical and technological constraints such as short processing time, manufacturing waste, difficult reproducibility, and inflexible manufacturing processes. Our patented formulation extends pot life through reversible inhibition of crosslinking. Unlike systems with state of the art inhibitors our inhibitors evaporate readily and completely once processing begins, even at temperatures below 80 °C, allowing normal cross-linking at mild temperatures for rapid and complete curing while maintaining the original material properties. The benefits of using Supresil® are reduced production costs, ensuring constant production quality and enabling 3D printing.

Single Walled Carbon Nanotubes (SWNTs) have gained a great deal of media attention over the past almost-two decades. From their theoretical usage as the foundational material for space elevators that would take travelers beyond earth’s atmosphere, to an active material that would allow engineers to create nanobots that internally repair or treat the human body, usages for SWNTs have resonated within the imagination of scientists and the media alike. Fast forwarding to the modern era, we find that nanotubes still have a great deal of technological promise, some of which parallel those usages that were theoretically conceived many years ago. For over a decade, NanoIntegris Technologies Inc. has been at the forefront of synthesizing high-purity, electronically enriched SWNT’s and, during that time, has found that our materials have proven to transcend from the theoretical to practical-usage realm. With over 2,000 publications citing the usage of our high performance materials, we have not only seen the beneficial properties of our materials studied via techniques such as SEM, UV-vis-NIR spectroscopy, and AFM. We have also received many positive use-cases for our materials such as highly-sensitive detection of antigens and other biochemicals, n/p type transistors, RFID antennas, wireless wearables, and flexible Schottky Diodes. Within my talk, I will display the usage of our high-purity semiconducting (≥98%) SWNT’s to make the next generation of high-performance electronics. I will focus upon the usage of a semiconducting solution that served as the interconnects within a 3D Monolithic System on a Chip (3DSOC). With over 57,000 Carbon Nanotube Field Effect Transistors and 10,000 CMOST digital logic gates prepared for the 3DSoC research, nanotubes have the potential to serve as the basis for the revolution of the computing industry. Additionally, I will show how an alternate semiconducting material was used to create an Intrinsically stretchable neuromorphic transistor used within wearable temperature sensors/ e-skin. Such an e-skin was able to maintain its electrical properties and plasticity after 50% strain, 1000 cycles with 30% stretching, and self-heal after burning at temperatures up to 75°C.

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