Stéphanie Narbey | Solaronix: Why is the Perovskite Research Community Ignoring the Most Critical Component of Commercialization?
00:06:34 - 00:07:22
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Summary of the clip:
How can the industry bridge the critical R&D gap between perovskite material stability and robust, reproducible device encapsulation?
While academic literature heavily emphasizes the intrinsic stability of perovskite active layers, the practical engineering of robust encapsulation systems remains disproportionately under-researched. This disparity presents a significant bottleneck for commercialization, as protecting these sensitive materials from environmental degradation is paramount to achieving long-term device reliability. Developing reproducible, industrially viable sealing processes is now the critical frontier for printed photovoltaics.
To address this challenge, current state-of-the-art packaging methodologies leverage multi-layered barrier architectures to isolate the active perovskite stack. By combining specialized edge sealants with protective plastic foils, such as thermoplastic polyolefin (TPO) or ethylene-vinyl acetate (EVA) laminates, manufacturers can effectively mitigate moisture ingress and oxygen exposure. These encapsulation configurations are vital for translating laboratory-scale efficiency into durable, market-ready solar modules.
Achieving process robustness and high reproducibility in encapsulation is just as crucial as the barrier properties of the materials themselves. Standardizing these packaging workflows ensures that the delicate perovskite layers survive the thermal and mechanical stresses of lamination. Mastering this integration of edge sealants and polymer foils is the key to unlocking the true commercial potential of perovskite solar technologies.
In this short video, you can learn:
* The significant research disparity between perovskite material stability and device encapsulation.
* The specific polymer foils and edge sealants utilized to package perovskite solar cells.
* The critical role of process robustness and reproducibility in achieving reliable device protection.
📋 **Clip Abstract** The speaker highlights a major gap in scientific literature regarding perovskite encapsulation compared to general stability research, emphasizing its importance for device robustness. She then outlines the specific encapsulation stack used at Solaronix, which incorporates edge sealants alongside plastic foils like TPO and EVA.
🎤 Speaker: Stéphanie Narbey
🏢 Company: Solaronix
📅 Event: Additive, Sustainable or 3D Electronics Innovations Day 2025
📍 Location: TechBlick Online Platform
🌐 Learn more at the next TechBlick event: https://www.techblick.com
#PerovskiteEncapsulation, #BarrierEngineering, #ThermalLamination, #MonolithicCarbonPerovskite, #PerovskitePhotovoltaics, #ThinFilmSolar
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00:02:43 - 00:04:17
Can We Eliminate Expensive Noble Metals from Perovskite Solar Cells Without Sacrificing Scalability?
How can we eliminate precious metals from perovskite photovoltaics while maintaining a scalable, high-throughput manufacturing workflow?
The transition to commercial perovskite photovoltaics demands a departure from expensive, vacuum-deposited noble metals like gold or silver for the counter electrode. Utilizing a mesoporous carbon layer as the back contact drastically reduces material costs and simplifies device architecture. This monolithic carbon-based configuration relies on a carefully engineered stack of mesoporous oxides that serve as both a physical scaffold and an electrical mediator, ensuring robust charge extraction without costly metallization steps.
Device functionality is governed by a precise tri-layer mesoporous scaffold deposited on a compact titania electron transport layer (ETL). A mesoporous titania layer initiates the scaffold, followed by a mesoporous zirconia layer acting as an insulating spacer to prevent electrical shorts between the titania and the carbon counter electrode. This entire multi-layer oxide and carbon stack is fabricated using high-throughput screen printing, with firing steps between layers to establish the necessary porosity and structural integrity before absorber infiltration.
The active absorber layer, typically a methylammonium lead iodide perovskite formulation, is introduced into the pre-fired scaffold via liquid-phase infiltration techniques like drop-casting or industrial inkjet printing. The liquid precursor penetrates the interconnected porosity of the titania, zirconia, and carbon layers, filling the voids of the monolithic stack. A subsequent thermal annealing step drives solvent evaporation and crystallizes the perovskite directly within the mesoporous matrix, completing the fabrication of a functional, fully printed solar cell.
In this short video, you can learn:
* The precise structural layout of a monolithic, precious-metal-free perovskite solar cell.
* How screen printing and inkjet infiltration are combined into a seamless, low-cost fabrication workflow.
* The critical role of mesoporous zirconia as an insulating barrier between the titania ETL and the carbon counter electrode.
📋 **Clip Abstract** This clip details the architecture and fabrication process of a mesoporous monolithic carbon perovskite solar cell. The speaker explains how screen-printed layers of titania, zirconia, and carbon form a scaffold that is subsequently infiltrated with a methylammonium lead iodide perovskite absorber using inkjet or drop-casting methods.
🎤 Speaker: Stéphanie Narbey
🏢 Company: Solaronix
📅 Event: Additive, Sustainable or 3D Electronics Innovations Day 2025
📍 Location: TechBlick Online Platform
🌐 Learn more at the next TechBlick event: https://www.techblick.com
#CarbonCounterElectrode, #MesoporousZirconia, #LiquidInfiltration, #MonolithicPerovskite, #PerovskitePhotovoltaics, #PrintedElectronics
00:13:04 - 00:14:02
Should We Stop Chasing 25% Efficiency in Perovskite Solar Cells to Achieve Real-World Viability?
Should We Stop Chasing 25% Efficiency in Perovskite Solar Cells to Achieve Real-World Viability?
The race for record-breaking laboratory efficiencies in perovskite solar cells often overlooks the fundamental trade-off between performance and stability. While planar junction designs using organic charge transport layers achieve efficiencies over 25%, they degrade rapidly under ambient conditions. Solaronix's mesoscopic carbon architecture, by contrast, targets a highly stable 11% to 15% efficiency range, prioritizing long-term operational lifetime over peak power conversion.
The physical origin of this lower efficiency lies within the mesoporous stack itself. Restricting perovskite crystallization inside a mesoporous titania/zirconia scaffold limits grain growth, resulting in smaller crystallites and a higher density of grain boundaries. This structural confinement increases non-radiative recombination and charge transfer resistance, capping the maximum achievable voltage and fill factor.
However, this mesoporous confinement is precisely what protects the perovskite from moisture, UV light, and thermal degradation. From a commercial standpoint, a highly stable 12% module that lasts 20 years outdoors holds significantly more market value than a 25% cell that fails within days of exposure.
In this short video, you can learn:
* Why mesoporous structural confinement limits perovskite grain growth and caps efficiency at 11-15%.
* How smaller crystal grains and grain boundaries lead to increased charge recombination in carbon electrodes.
* The commercial viability of high-efficiency unstable planar cells against moderately efficient, ultra-stable carbon monolithic devices.
📋 **Clip Abstract** This clip explains the physics behind the efficiency limits of mesoscopic carbon perovskite solar cells. It frames these limitations as a deliberate and commercially valuable design trade-off to achieve decade-scale stability.
#MesoscopicCarbonPerovskite, #MonolithicCarbonDevices, #MesoporousScaffold, #GrainBoundaryRecombination, #PerovskitePhotovoltaics, #PrintedElectronics