JinkoSolar has signed a strategic cooperation agreement with XtalPi, an ‘AI for Science’ platform company, to pursue high-throughput R&D in the field of perovskite-crystalline-silicon tandem solar cells using an AI platform and quantum physics-based models.
Chinese PV module manufacturer JinkoSolar has entered into a strategic partnership with XtalPi, an ‘AI for Science’ platform company, to promote high-throughput research and development of perovskite-crystalline-silicon tandem solar cells through the use of an AI platform in combination with quantum physics-based models.
Under the terms of the deal, the companies plan to form a joint venture and develop what they describe as the first fully closed tandem development line combining “AI decision making, robot execution and data feedback.” The stated goal is to accelerate the discovery and optimization of tandem device stacks for higher efficiency and improved stability, replacing traditional trial-and-error workflows with automated experimentation and iterative model training.
XtalPi said it will contribute its materials R&D stack that includes literature and data mining, quantum physics algorithms, AI prediction models and automated, modular robotics that can run around the clock. In describing the collaboration, the company highlighted an automated experimental setup with more than 200 robots and an end-to-end workflow that can include precursor synthesis, device fabrication, in-situ characterization, laser processing, vacuum deposition and aging testing, with results fed back into models to refine subsequent experiments.
JinkoSolar is positioning the partnership as an extension of its “next-gen” mobile roadmap. In December 2025, the manufacturer achieved an energy conversion efficiency of 34.76% for a perovskite-silicon tandem solar cell based on tunnel oxide passivated contact (TOPCon) n-type wafers.
The company said the results were certified by China’s National PV Metric & Testing Center (NPVM). In previous attempts, JinkoSolar achieved a cell efficiency of 34.22% for the same device configuration.
“This latest breakthrough is attributed to JinkoSolar’s systematic innovation in perovskite and tandem technologies. Key improvements include the company’s proprietary high-efficiency n-type TOPCon bottom cell, passivation of defects at the bottom of the perovskite, new perovskite crystallization techniques and optimized vertical charge transport strategies,” the manufacturer said in a statement, without providing further details.
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