Anuja Vijayan | TNO partner in Solliance: Can flexible perovskite modules actually survive the rigorous damp-heat and thermal stress tests of silicon?
10:08 - 12:20
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Summary of the clip:
Can flexible perovskite modules actually survive the rigorous damp-heat and thermal stress tests of silicon?
While perovskite solar cells excel in initial efficiency, commercial viability depends entirely on long-term stability under environmental stress. TNO has achieved landmark durability milestones by passing rigorous testing protocols, retaining 98% of initial efficiency after 200 thermal cycles and 92% after 1,000 hours of damp-heat exposure (85°C/85% RH) on rigid platforms.
Translating this reliability to flexible substrates, TNO's encapsulated metal-foil devices underwent extensive thermal stress testing at 85°C. Remarkably, champion cells showed virtually no degradation over 3,000 continuous hours, retaining an efficiency of 13.7%, with similarly resilient performance observed at elevated temperatures of 100°C.
To prevent moisture and oxygen ingress—the primary degradation mechanisms for perovskites—highly specialized flexible barrier materials and lamination processes were developed. Under continuous 1-sun light-soaking at 55°C, encapsulated modules sustained stable operation, validating the robustness of the packaging architecture.
In this short video, you can learn:
* The stability performance of perovskite cells under 1,000-hour damp-heat and 200 thermal cycling tests.
* How encapsulated flexible metal-foil devices maintain stable efficiency over 3,000 hours of continuous thermal stress at 85°C.
* The impact of TNO's advanced barrier lamination and encapsulation on preventing environmental degradation.
📋 **Clip Abstract** This clip presents outstanding stability data for TNO's encapsulated perovskite solar cells under thermal stress, damp-heat, and light-soaking conditions. The results demonstrate that both rigid and flexible metal-foil perovskites can withstand thousands of hours of accelerated environmental testing.
#FlexiblePerovskites, #DampHeatTesting, #BarrierLamination, #MetalFoilSubstrates, #FlexiblePhotovoltaics, #PrintedElectronics
This is a highlight of the presentation:
Outside the Box: The Cleanroom Hack Scaling Next-Gen Perovskite Solar
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05:35 - 07:10
Can you scale perovskite solar cell manufacturing without wasting precious cleanroom footprint?
Can you scale perovskite solar cell manufacturing without wasting precious cleanroom footprint?
Scaling up thin-film solar technologies like perovskites from the lab to high-speed roll-to-roll printing requires innovative equipment layout strategies. Solliance and TNO developed a patented slot-die coating system that prevents the active web side from contacting the rollers, drastically reducing defect densities during continuous processing.
A key technical innovation is the physical decoupling of the coating and drying systems. By keeping the unwinder, slot-die head, and rewinder inside a high-class cleanroom while extending the high-volume thermal dryers outside, TNO maximizes cleanroom utility and reduces operational overhead.
Additionally, the setup features a dual-slot-die head capable of depositing two consecutive layers simultaneously, which can operate in both continuous and intermittent coating modes. Real-time optical inspection at the dryer exit allows for immediate layer density and quality validation before rewinding.
In this short video, you can learn:
* How TNO’s patented "non-contact" web-handling configuration prevents defects on wet perovskite films.
* The strategic engineering design of extending the drying tunnel outside the cleanroom footprint.
* How dual-slot-die heads enable simultaneous dual-layer deposition for high-throughput manufacturing.
📋 **Clip Abstract** This clip details TNO’s patented roll-to-roll slot-die coater system designed to optimize cleanroom efficiency and minimize defects. The presentation showcases how the physical footprint is split to run dryers externally while maintaining a clean, dual-die head deposition environment inside.
#PerovskitePhotovoltaics, #SlotDieCoating, #NonContactWebHandling, #DualSlotDie, #PrintedElectronics, #FlexibleElectronics
07:10 - 09:30
How do you translate fragile lab-scale perovskite chemistry directly into roll-to-roll manufacturing?
How do you translate fragile lab-scale perovskite chemistry directly into roll-to-roll manufacturing?
Upscaling perovskite photovoltaics requires a strict methodology to bridge the gap between spin-coating and high-speed industrial coating. TNO addresses this challenge through a three-stage platform strategy: optimizing ink formulations at the lab-scale, validating with blade coating and sheet-to-sheet (S2S) slot-die, and finally executing full roll-to-roll (R2R) printing.
A crucial variable in this transition is the solvent system. To meet environmental and safety regulations, TNO utilizes non-carcinogenic, green solvent formulations, demonstrating that blade-coated devices can achieve virtually identical efficiencies to spin-coated baselines when using matching ink concentrations.
This systematic translation has yielded highly efficient large-area devices. On flexible metal TCO foils, TNO successfully achieved close to 16% power conversion efficiency in S2S slot-die configurations, paving the clear engineering pathway for high-throughput, continuous R2R line implementation.
In this short video, you can learn:
* The step-by-step transition protocol from spin-coating to continuous slot-die processes.
* How green solvent systems can replace toxic DMF/NMP without sacrificing device performance.
* TNO's success in achieving 16% efficiency on flexible metal TCO foils using slot-die coating.
📋 **Clip Abstract** This clip explains TNO's phased scaling strategy from lab-scale spin coating to sheet-to-sheet and roll-to-roll processing. The discussion highlights the critical role of green solvent systems and presents efficiency benchmarks achieved on flexible metal foils.
#RollToRollManufacturing, #SlotDieCoating, #GreenSolvents, #FlexiblePerovskites, #PrintedElectronics, #ThinFilmSolar