Sofab Inks and Alpha Precision Systems (APS) have reported a 22.2% power conversion efficiency on a 30 × 30 cm perovskite solar module using a fullerene-free PIN architecture and slot-die coating. The result illustrates a potential pathway to narrow the gap between laboratory-scale device performance and production-scale perovskite module manufacturing.

Sofab Inks was founded around Tinfab, a tin-oxide nanoparticle ink engineered to function as an electron transport layer deposited directly on perovskite absorbers. Tinfab enables fullerene-free PIN device architectures and is designed for compatibility with scalable coating processes such as slot-die coating. In earlier work on flexible substrates, the Sofab team reported a champion device efficiency of 20.41%, demonstrating the material’s potential at lab scale.

Fujian University of Technology researchers have developed a dual-interface engineering strategy that leverages black phosphorene (BP) to dramatically enhance the performance of MAPbI₃-based perovskite solar cells (PSCs), achieving a simulated efficiency leap from 12.9% to an impressive 30%.

In their study, the team integrated a layer-dependent BP model into a validated baseline PSC architecture (Au/Spiro-OMeTAD/MAPbI₃/TiO₂/FTO) using the SCAPS-1D simulation platform. The model was parametrized with data drawn from both Density Functional Theory (DFT) calculations and experimental literature, allowing precise control of the BP layer number at both the electron and hole transport interfaces.

Researchers from Tsinghua University and Beijing Institute of Technology have developed an ion-pair pinning strategy that enables the fabrication of high-performance perovskite quantum dot light-emitting diodes (QLEDs) under ambient air conditions - an important step toward cost-effective, large-scale production of next-generation display and lighting technologies.

a Schematic structure, b cross-sectional SEM image, and c energy diagram of the device. Image from: Light: Science & Applications

Traditionally, the emissive perovskite quantum dot (QD) layers used in QLEDs must be processed in inert gas atmospheres to avoid degradation from moisture and oxygen. This requirement hinders manufacturing scalability and increases costs. To overcome this, the team introduced tetraalkylammonium triflate (NR₄OTf) into the precursor solution to stabilize and passivate formamidinium lead bromide (FAPbBr₃) QD films during air processing.

Huarou PV has reported a conversion efficiency of 27.98% for its self-developed single-junction perovskite solar cell, certified by the National PV Industry Measurement and Testing Center (NPVM). The test device has an area of 0.051 m² and was measured under standard illumination conditions.

According to shareholder Ouhai Sci-tech Group, the result represents the first time a perovskite solar cell has exceeded the laboratory efficiency of all single-junction crystalline silicon cells. For comparison, the previous record of 27.9% was achieved by LONGi in 2025 using its HTBC structure and verified by Germany’s Institute for Solar Energy Research Hamelin (ISFH), later included in the Solar Cell Efficiency Tables (Version 67).

Researchers from the Indian Institute of Technology Bombay and Linköping University have reported a four‑terminal (4T) silicon-perovskite tandem solar cell with a power conversion efficiency of 30.2%. The device combines an optimized transparent perovskite top cell with a monocrystalline n‑type TOPCon silicon bottom cell that delivers 25.5% efficiency on its own.

Efficient spectral utilization in tandem architectures requires careful bandgap tuning of the perovskite absorber. However, shifting the bandgap up or down often introduces open‑circuit voltage (VOC) losses, which are commonly attributed to misalignment at the charge‑transport interfaces. The study investigates whether this conventional explanation fully accounts for the observed voltage deficits.

Researchers from Henan University, The University of Sydney, Forschungszentrum Jülich (IMD-3 Photovoltaics), University of Glasgow, University of New South Wales (UNSW), Westlake University and University of South Australia have developed a pH-modulated co-SAM (self-assembled monolayer) strategy that improves the performance and robustness of wide-band-gap perovskite and perovskite-silicon tandem solar cells. Their approach centers on suppressing aggregation in SAM precursor solutions, a common bottleneck that limits film quality and device stability.

The team discovered that aggregation in standard SAM precursor molecules can be effectively mitigated by controlling the solution’s pH. To achieve this, they synthesized a new compound - 6-aminohexylphosphonic acid hydrochloride (6AHPACl) - and introduced it to the widely used (4-(3,6-dimethyl-9H-carbazol-9-yl)butyl)phosphonic acid (Me-4PACz) solution. The resulting co-SAM formulation not only stabilizes the pH but also enhances surface chemistry at the SAM/perovskite interface.

Reports suggest that wind and solar manufacturer Mingyang Smart Energy Group plans to invest more than RMB 3.5 billion (over US$508 million) in Zhongshan, Guangdong Province, to develop 6 clean energy-related projects.

Among these is a GW-scale building-integrated photovoltaics (BIPV) perovskite production line, which the company states would be the first GW-class project of its kind globally. 

Researchers from Central South University, Imperial College London and City University of Hong Kong have reported a new class of tailored ferrocenium oxidants that function as highly efficient dopants for Spiro-OMeTAD in perovskite solar cells (PSCs). By tuning the reduction potential of ferrocenium species, the team achieved near-quantitative conversion of Spiro-OMeTAD to its oxidized form (Spiro-OMeTAD⁺), delivering optimal charge transport and energy-level alignment without the drawbacks of conventional lithium-based schemes.

Conventional PSCs relying on LiTFSI and 4-tert-butylpyridine (TBP) co-doping routinely suffer from hygroscopicity, volatility, and poor long-term reliability. To overcome these limitations, the researchers developed a one-step route to redox-tunable ferrocenium salts with specific anion selectivity. Among these, the dibromo-ferrocenium bis(trifluoromethylsulfonyl)imide (FcBr₂TFSI) compound proved particularly effective, offering strong oxidative power and enabling full Spiro-OMeTAD doping at ultra-low concentrations - just 5 mol%.

Motech Industries, a leading Taiwanese solar manufacturer, has announced the launch of a pilot production line for high-efficiency perovskite-silicon tandem solar panels. 

Located in Taoyuan, Taiwan, the new facility has an initial annual capacity of 10–20 MW and is backed by an investment of around NT$500 million (over US$15 million). While not yet focused on mass production (but rather on research, development, and process validation), the pilot line aims to refine tandem cell processes, improve manufacturing yields, and validate scalability.

Sungkyunkwan University (SKKU) researchers have developed an indium-free transparent electrode technology for perovskite light-emitting diodes (PeLEDs), achieving high performance, chemical robustness, and improved device stability. The work, led by Professors Han-Ki Kim and Bo Ram Lee, introduces nitrogen-doped tin oxide (NTO) as a cost-effective, sustainable alternative to conventional indium tin oxide (ITO).

Image from: Materials Today

Perovskite LEDs are recognized for their exceptional color purity and processing flexibility, but the reliance on ITO remains a bottleneck due to indium’s rarity, high cost, and poor chemical compatibility with acidic hole transport layers such as PEDOT:PSS. Over time, indium diffusion and electrode corrosion can degrade device performance and shorten operational lifetime.