Stergios Logothetidis | OET Energy Technologies: What does a 1-million-square-meter automated perovskite solar production facility look like?
00:07:38 - 00:08:52
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Summary of the clip:
How can manufacturers bridge the gap between pilot-scale organic photovoltaics and high-throughput, defect-free industrial production?
The transition to commercial-scale manufacturing of flexible electronics requires a departure from batch processing toward fully integrated, continuous-flow systems. By pairing a high-speed roll-to-roll (R2R) printing line with a dedicated automated assembly system, producers can achieve the continuous deposition of multi-layer optoelectronic devices. This dual-machine architecture ensures that the entire functional stack of an organic photovoltaic (OPV) cell is deposited in a single, uninterrupted pass, dramatically reducing handling contamination and cycle times.
To maintain high yields across a 65-meter production footprint, real-time metrology must be embedded directly into the web path. Integrating over fifteen advanced, in-line quality control instruments enables a closed-loop feedback mechanism that monitors deposition uniformity and detects defects on the fly. This level of automated process control stabilizes the delicate printing parameters required for active and interfacial layers, matching the rigorous standards of modern precision manufacturing.
Post-deposition processing demands equal versatility to translate printed webs into marketable, device-level form factors. An advanced automated assembly system allows for custom geometric shaping and versatile product design, accommodating diverse application requirements. Crucially, this assembly capability extends beyond standard flexible substrates, enabling the integration of printed active layers onto semi-flexible and rigid form factors alike.
In this short video, you can learn:
* How a dual-machine R2R and automated assembly configuration enables single-pass production of multi-layer photovoltaics.
* The role of over fifteen integrated quality control tools in establishing closed-loop feedback for defect reduction.
* How advanced assembly automation enables the fabrication of flexible, semi-flexible, and rigid PV formats.
π **Clip Abstract** The speaker describes an industrial-scale production line consisting of a 65-meter roll-to-roll printing machine and an automated assembly machine. This integrated system utilizes over fifteen advanced quality control tools for closed-loop feedback and is capable of manufacturing flexible, semi-flexible, and rigid photovoltaics in custom shapes.
π€ Speaker: Stergios Logothetidis
π’ Company: OET Energy Technologies
π
Event: Perovskite Connect 2025
π Location: Estrel Congress Centre, Berlin (Co-located with TechBlick's Future of Electronics RESHAPED show)
π Learn more at the next TechBlick event: https://www.techblick.com
#RollToRollManufacturing, #PerovskitePhotovoltaics, #PrintedSolar, #AutomatedAssembly, #BuildingIntegratedPV, #FlexibleElectronics
This is a highlight of the presentation:
Ambient Roll-to-Roll Manufacturing for Perovskite and Organic Photovoltaics
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00:02:44 - 00:03:56
Can we scale perovskite and organic solar cells without high-vacuum equipment?
Can fully printed, vacuum-free roll-to-roll processing finally bridge the gap between lab-scale organic and perovskite photovoltaics and high-yield industrial manufacturing?
The transition to scalable solar energy requires high-throughput manufacturing that bypasses the cost and throughput bottlenecks of traditional vacuum deposition. By utilizing roll-to-roll (R2R) printing and laser patterning, manufacturers can deposit both organic photovoltaics (OPVs) and perovskite photovoltaics (PPVs) on flexible substrates. This shared processing pipeline allows for a highly versatile production line where the core deposition and patterning steps remain virtually identical for both material classes.
Eliminating vacuum steps from the fabrication process represents a major paradigm shift in printed electronics. The integration of continuous, atmospheric-pressure printing technologies alongside precise laser patterning enables rapid, sequential layer deposition. This fully printed approach drastically reduces capital expenditure and operational complexity, making flexible solar module production commercially viable.
To achieve the precision required for thin-film photovoltaics without vacuum containment, the production line must leverage advanced metrology and smart manufacturing. Integrating inline, real-time quality control systems enables a closed-loop feedback mechanism that dynamically adjusts printing parameters. This integration of real-time diagnostics and automated process control aligns the fabrication line with Industry 4.0 standards, ensuring high yield and spatial uniformity.
In this short video, you can learn:
* How roll-to-roll printing and laser patterning are unified into a single fabrication line for both organic and perovskite photovoltaics.
* The manufacturing advantages of utilizing a fully printed, vacuum-free deposition process.
* How inline, real-time quality control and closed-loop feedback systems enable Industry 4.0 smart manufacturing.
π **Clip Abstract** The speaker discusses how organic and perovskite photovoltaics can be manufactured using roll-to-roll printing, laser patterning, and inline quality control without any vacuum steps. He explains that integrating these real-time control systems enables a closed-loop feedback mechanism aligned with Industry 4.0 smart manufacturing.
π€ Speaker: Stergios Logothetidis
π’ Company: OET Energy Technologies
π
Event: Perovskite Connect 2025
π Location: Estrel Congress Centre, Berlin (Co-located with TechBlick's Future of Electronics RESHAPED show)
π Learn more at the next TechBlick event: https://www.techblick.com
#RollToRollPrinting, #SlotDieCoating, #PerovskiteSolarCells, #VacuumFreeManufacturing, #PrintedElectronics, #FlexiblePhotovoltaics
00:04:24 - 00:05:57
How do you catch micro-defects in a 100-meter roll of printed solar film moving at high speeds?
How do you catch micro-defects in a 100-meter roll of printed solar film moving at high speeds?
Defect detection in high-speed, roll-to-roll electronics printing is a massive challenge due to the micron-scale thickness of the active layers. OET addresses this through an inline metrological platform that harvests optical metadata in real time. Proprietary algorithms evaluate this stream to provide instantaneous feedback to preceding deposition tools before yield-killing defects propagate.
The primary inline inspection tool utilizes imaging photoluminescence (PL) to identify structural and layer defects. This non-destructive optical technique maps variations in emission intensity, immediately flagging spatial defects, physical cuts, or composition variations across hundreds of meters of continuously moving film.
Complementing PL, Laser Beam Induced Current (LBIC) is deployed to correlate structural defects with electrical functionality. This dual-diagnostic approach ensures that spatial anomalies are classified by their actual impact on device performance, enabling targeted, automated quality control at production scale.
In this short video, you can learn:
* The architecture of an inline metrological platform designed for high-speed quality control.
* How imaging photoluminescence non-destructively flags active layer defects across 100-meter production runs.
* Utilizing Laser Beam Induced Current (LBIC) to map spatial electrical performance variations in real time.
π **Clip Abstract** This segment details the advanced inline metrological platform developed to monitor roll-to-roll printed photovoltaics. By combining imaging photoluminescence and laser beam induced current diagnostics, OET identifies and corrects active layer defects in real-time.
#ImagingPhotoluminescence, #LaserBeamInducedCurrent, #InlineMetrology, #RollToRollManufacturing, #PrintedPhotovoltaics, #FlexibleElectronics