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Ein Perowskit-Tandemmodul mit 2,76 Quadratmeter Fläche. Davor (v.l.n.r.): Jiaji Zhu (Investment Analyst bei GCL Optoelectronics), Michael Fuhs (Chefredakteur bei pv magazine), Vincent Shaw (pv magazine Editor China), Luvea Zhang (Branding Managerin, GCL Optoelectronics).
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Palpable perovskite production It is now widely accepted that PV module efficiencies can be increased by combining silicon with perovskites. pv magazine visited module maker GCL Optoelectronics at its factory near Shanghai, where it is ramping up production of these tandem modules. Founder Fan Bin believes that cost parity with today’s module technologies could be achieved as early as 2028.
Michael Fuhs
Feb 05, 2026
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Scientists build PEDOT:PSS-free all-perovskite tandem solar cell with 29.1% efficiency PEDOT:PSS is commonly used as a hole transport layer in perovskite solar cells because it combines high transparency, good conductivity, and suitable energy-level alignment, but its moisture sensitivity and acidity can damage perovskite layers and limit long-term stability. In contrast, replacing it with a phenothiazine-based self-assembled monolayer allows better interfacial control during crystallization, lowers defect densities, and enables highly efficient all-perovskite tandem devices with a reported efficiency of 29.1%.
Emiliano Bellini
Jun 16, 2026
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EPFL researchers enhance perovskite solar cell performance via rubidium Researchers led by Michael Grätzel at the Ecole Polytechnique Federale de Lausanne in Switzerland have recently led efforts to improve perovskite optoelectronic properties using small-radius rubidium ion chemistry to enable more stable and efficient perovskite solar cells.
Valerie Thompson
Jan 06, 2026
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KAUST achieves 28.7% efficiency in perovskite-perovskite-silicon tandem solar cell An international team of researchers led by King Abdullah University of Science and Technology has fabricated a triple junction perovskite-perovskite-silicon tandem solar cell that achieved a world record efficiency for this cell architecture. The device incorporates stabilized perovskites that ensure improved performance and stability.
Valerie Thompson
Sep 29, 2025
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Powering up perovskites Perovskite solar devices continue to move closer to large-scale manufacturing in 2026, with encouraging results from outdoor testing and megawatt-scale pilot lines. pv magazine spoke with Yang Chen, director of overseas business development at Chinese perovskite startup Microquanta, about the direction and prospects for perovskite PV in 2026.
Mark Hutchins
May 11, 2026
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Polish scientists build 21.87% semi-transparent perovskite PV cell for tandem applications The device was fabricated using a p–i–n architecture with a solution-processed tin oxide buffer layer that shields the perovskite from damage during room-temperature indium tin oxide sputtering. The team optimized the transparent rear electrode and integrated the best-performing cell into a four-terminal perovskite/silicon tandem device.
Lior Kahana
Jul 29, 2026
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Indian researchers build transparent perovskite-silicon tandem solar cell with 30.2% efficiency The transparent four-terminal perovskite solar cell employs an ion-modulated spiro-MeOTAD hole transport layer, which passivates interfacial defects, enhances carrier dynamics, and allows for a tunable work function in wide-bandgap perovskites. When integrated into mechanically stacked 4T tandems with an n-TOPCon cell, the device achieved an overall efficiency of 28.4–30.2%, along with improved open-circuit voltage and fill factor.
Emiliano Bellini
Mar 02, 2026
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The impact of sunlight spectral shifts on bifacial perovskite-silicon tandem solar cells Experts from the International Solar Energy Society explains how regional spectral shifts of the standard spectral distribution of sunlight bring new insights into the performance of bifacial perovskite-silicon tandem solar cells.
International Solar Energy Society (ISES)
Sep 24, 2025
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Modeling subcell degradation rates in perovskite-silicon tandem solar modules Researchers in the Netherlands developed a model to identify tolerable degradation rates of the top cell in perovskite-silicon tandem modules. Simulations showed that an increase in tandem module efficiency from 28.0% to 32.9% could raise the tolerable degradation rate by approximately 50%.
Valerie Thompson
Feb 06, 2026
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Key takeaways from Perovskite Connect 2025 Industry and researchers at the first global perovskite trade fair in Berlin discussed scalability, durability, and pathways to commercialization, with organizers already planning a second edition for October 2026.
Patrick Jowett
Oct 27, 2025
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