No-gas Laser Welding

The transition to gigawatt-scale perovskite solar production hinges on precision laser processing, where beam splitting technology plays a pivotal role. By dividing a single laser source into multiple beams, this technique enables simultaneous scribing of P1-P3 patterns and edge isolation (P4), directly impacting throughput, dead zone control, and production costs. Current industrial approaches primarily include mechanical beam splitting and diffractive optical elements (DOEs), each with distinct advantages for perovskite’s thermal sensitivity and scalability requirements.

Perovskite solar cells (PSCs) represent the third generation of thin-film solar technology, renowned for their high efficiency, low cost, and flexibility. As industrialization progresses, laser technology has emerged as a critical enabler, addressing key challenges in precision processing and scalability. This article explores the multifaceted role of lasers in PSC manufacturing.

The equipment utilizes a high-energy-density laser beam, precisely controlled by a computer system, to process roll-to-roll thin-film solar cell materials according to pre-programmed scribing patterns. Through laser thermal or cold processing effects, the thin-film material is instantaneously vaporized, separated, or modified, achieving precise scribing to either segment the cells or create specific circuit patterns on them.

Lecheng's laser scribing equipment, equipped with a high-precision laser control system, achieves micron-level patterning accuracy with smooth, thermally damage-free edges. This significantly reduces internal resistance losses in solar cells, pushing power conversion efficiency to industry-leading levels—perfectly meeting the high-power output demands of mass production.

Laser high-precision micromachining technology achieves material processing through precise control of core parameters such as wavelength, pulse width, and energy density, utilizing either thermal or cold processing mechanisms. This induces instantaneous material vaporization, melting, or modification, enabling operations such as cutting, drilling, engraving, and surface treatment. It stands as a pivotal technology in high-precision manufacturing.

This prestigious accolade has significantly elevated Lecheng Intelligent's industry visibility and reputation, distinguishing it as a trusted leader among suppliers. The recognition solidifies its competitive edge and lays a robust foundation for market expansion.