JOYOSOLAR — Products & Solutions

Full-Stack In-House R&D | Patent Backed

All core technologies are developed in-house, building a complete inverted perovskite solution covering interface materials, crystal growth, metal electrodes, air coating, and high-barrier encapsulation. The company holds more than 30 perovskite-related invention patents, has published more than 130 SCI papers in journals including Science and Nature, and has achieved 27.9% lab cell efficiency and 30.2% tandem cell efficiency. Formulations, processes, and equipment are fully self-controlled.

MW-Level Pilot Line | Production-Ready Validation

An MW-level perovskite pilot line has been completed, with 60x60 cm modules already coming off the line. Certified efficiency reaches 23.4% for 6x6 cm modules and 22.3% for 14x14 cm modules. Indoor photovoltaic submodules ship in batches of 10,000 pieces per day, powering e-labels, electronic door locks, and IoT devices, with annual revenue exceeding RMB 10 million.

IQC → IPQC → FQC Full-Process Quality Control

Full-process control is established under ISO 9001, ISO 14001, and ISO 45001. IQC qualifies and batch-tests key raw materials such as chemicals and glass substrates; IPQC applies 100% online monitoring plus spot checks at cleaning, thin-film processing, annealing, and laser scribing; FQC completes IV performance, EL defect imaging, IEC reliability verification, and appearance and packaging inspection, ensuring a 100% factory pass rate.

Stability Certification Beyond Industry Standards

Modules pass VDE certification: less than 2% degradation after 1,000 hours of 50°C light exposure, 50 times the IEC c-Si requirement; less than 2% degradation after 1,000 hours of 85°C/85% RH aging; and less than 5% degradation after 3,000 hours of dark damp-heat/freeze cycling, 3 times the IEC requirement. The company also obtained the world's first third-party stability certification report for perovskite modules issued by an academic institution.

High-Efficiency x Low-Cost Process Route

The air-coating process reduces energy and environmental requirements; Bi-based metal electrodes are chemically stable and easy to evaporate; raw materials, processes, and equipment are fully self-controlled. The pilot line's total investment is about RMB 10 million, achieving certified 23.4% efficiency for 6x6 cm cells and 18%-20% batch production efficiency for 14x14 cm modules, providing a replicable low-cost template for MW-scale expansion.

Flexible Customization | Full Scenario Coverage

We provide 600x600 mm standard modules, custom rigid modules, thin flexible modules, and finished perovskite products such as solar electronic badges and writing pads, covering smart wearables, smart home, smart office, smart city, and outdoor adventure scenarios. Committed to low-carbon manufacturing, we can take custom delivery from materials and modules to complete device solutions.