solar-cells

Lithuanian researchers stabilized inverted perovskite solar cells by converting an acidic component into a neutral salt, achieving high efficiency after 1,000 hours of use.

Nature Sustainability, Published online: 13 August 2026; doi:10.1038/s41893-026-01916-6 Practical application of perovskite solar cells requires scalable fabrication in ambient environments. Here the authors introduce PNCC, a hole-transport co-polymer that enables ambient-fabricated devices to achieve certified efficiencies of 33.0% in tandem cells and 23.2% in modules.

Two-terminal (2T) perovskite/silicon tandem solar cells promise a major step beyond conventional silicon photovoltaics (PV), but their field performance depends on the color balance of sunlight as well as headline efficiency. A new study shows that shifting outdoor spectra can weaken current matching between the two sub-cells in 2T tandems, reducing energy output per watt under real skies.

Nature Communications, Published online: 11 August 2026; doi:10.1038/s41467-026-76713-y Perovskite–silicon tandem solar cells offer efficient, low-cost energy, but forming high-quality perovskite films on textured silicon remains challenging. Kong et al. applied a healing treatment that improved crystal growth, efficiency, and long-term stability.

Mixed-halide perovskites make great wide-bandgap cells until they segregate. The problem starts at crystallization. A selective Lewis base syncs the mixed halides, yielding stable and efficient perovskite/organic tandem solar cells with a certified 27.0% efficiency.

Nature, Published online: 22 July 2026; doi:10.1038/s41586-026-10919-4 Electronic-resonance enhanced molecule for perovskite solar cells

Nature Communications, Published online: 15 July 2026; doi:10.1038/s41467-026-75629-x Perovskite solar cells face defects and interfacial strain that limit efficiency and stability, while standard chemical fixes can add stress. Yang et al. use low-temperature liquid-assisted vibration to remove defects and stress, improving efficiency, durability, and scalability.

Nature Communications, Published online: 24 June 2026; doi:10.1038/s41467-026-74288-2 Self-assembled monolayers are common hole-selective contacts in inverted perovskite solar cells, but acidic head groups reduce interface quality. Yang et al. neutralize these groups with alkali metal phosphonate salts and mixed layers, improving charge extraction, stability, and efficiency.

JinkoSolar reported a certified 34.82% efficiency for a perovskite-silicon tandem solar cell on 19 June 2026, just below Longi's 34.85% record. <p>The post JinkoSolar reports 34.82% efficiency for perovskite-silicon tandem solar cell first appeared on Winssolutions .</p>

Nature Communications, Published online: 11 June 2026; doi:10.1038/s41467-026-72581-8 Scalable perovskite solar cell production is limited by moisture sensitive interfacial layers. Li et al. develop a low hygroscopic solvent system enabling ambient blade coating of precursors, including self-assembled monolayers and passivation layers, yielding high device efficiency.

Nature Communications, Published online: 25 May 2026; doi:10.1038/s41467-026-73620-0 Formamidine-based perovskite solar cells promise high efficiency, but additive-induced deprotonation disrupts precursor stability and device performance. Dong et al. use a hydrolyzing ester additive to regulate proton transfer, stabilizing the precursor and achieve efficient, durable devices.

Scientists in Singapore have developed a new type of ultrathin solar cell that is almost invisible and could one day turn windows, car sunroofs, and even smart glasses into clean energy generators. The breakthrough was made by researchers at Nanyang Technological University in Singapore and published in ACS Energy Letters. The research team, led by […] The post Scientists create nearly invisible …

Scientists in China have developed a new way to make highly efficient perovskite solar cells that could help accelerate the future of low-cost solar energy. The research team achieved a certified power conversion efficiency of 30.3% in rigid tandem solar cells and 28.0% in flexible versions, setting an important milestone for this rapidly developing technology. […] The post New perovskite solar c…

Nature, Published online: 30 April 2026; doi:10.1038/s41586-026-10587-4 Continuously graded-doped SnO 2 for efficient n–i–p perovskite solar cells

A new study has revealed a surprisingly simple way to improve one of the biggest weaknesses of next-generation solar cells. Researchers from Korea University and University of Surrey have shown that just bringing two special solar materials into contact can make them both more efficient and more durable—without adding any extra chemicals or coatings. The […] The post A simple touch that could mak…

Nature Communications, Published online: 20 April 2026; doi:10.1038/s41467-026-72097-1 Co-deposited perovskite solar cells suffer from self-assemble monolayer (SAM) aggregation that weakens interfacial adhesion and limits performance. Zhuang et al. design an asymmetric SAM and a crosslinking additive to curb aggregation, enabling efficient, stable devices.

Perovskite solar cells shouldn’t work as well as they do—but they do. Scientists have now discovered that defects inside the material actually help, creating networks that separate and guide electric charges efficiently. Using a novel imaging method, they revealed hidden structures acting like charge “highways.” This insight could unlock even more powerful, low-cost solar cells.