​Technology News

A major hurdle for perovskite solar cells has been the sensitivity of the materials to ambient air during manufacturing, which typically requires energy-intensive, inert-gas environments. A groundbreaking solution comes from Nanchang University, where researchers developed a novel "laser annealing" technique.

Laser processing technologies, including ablation, engraving, and cutting, are fundamental to modern precision manufacturing. While they all utilize high-energy laser beams to interact with materials, they are distinguished by their core objectives, key process parameters, and resultant application scenarios. Understanding these differences is crucial for selecting the appropriate technology for specific industrial needs.

Laser ablation, a sophisticated material processing technology, has established itself as a cornerstone technique in precision marking and micro-fabrication. This process utilizes high-energy pulsed laser beams to selectively remove material from a surface through vaporization, achieving unparalleled accuracy in creating fine features and markings. As industries increasingly demand higher precision and minimal thermal impact, laser ablation continues to evolve, offering innovative solutions across various manufacturing sectors.

The global PV market is entering a quality‑first, system‑value era: growth is broadening across regions, technologies are differentiating by efficiency and aesthetics, and the industry is consolidating around higher standards and smarter manufacturing. For Lecheng, aligning product roadmaps with these structural trends—especially in high‑efficiency cell and module testing—can unlock sustained share gains and long‑term customer value in both established and emerging markets.

The rapid growth of flexible electronics—including flexible printed circuit boards (FPCs), organic light-emitting diodes (OLEDs), wearable sensors, and rollable displays—has driven demand for high-precision, high-throughput manufacturing solutions. Among these, the roll-to-roll (R2R) laser scribing & edge-cleaning systemhas emerged as a transformative technology, enabling non-contact, high-speed processingof thin, delicate materials.

Femtosecond laser processing represents one of the most advanced frontiers in precision manufacturing today. This technology utilizes laser pulses of incredibly short duration—approximately 10⁻¹⁵ seconds—to achieve material processing with unparalleled precision and minimal thermal damage. The unique characteristics of femtosecond lasers have opened up revolutionary possibilities across industries from medical devices to aerospace engineering.

First, why can perovskite solar cells still generate electricity indoors or in low-light environments? It's not generating light itself, but rather converting the faint light into electrical energy, which powers the small light in the circuit. Perovskite material is particularly good at absorbing light; even indoor light or scattered light can be utilized efficiently and normally.

As wearable technology advances from fitness trackers to medical monitors and augmented reality glasses, power autonomy remains the critical bottleneck. Conventional batteries limit device functionality and design freedom, while rigid solar solutions compromise wearability. Enter ultrathin all-perovskite photovoltaic cells – the breakthrough technology enabling truly self-sustaining wearable ecosystems.

Perovskite solar modules (PSMs) have emerged as a promising photovoltaic technology due to their high efficiency and low manufacturing costs. However, the commercialization of PSMs faces significant challenges in achieving precise and reliable laser scribing processes for series interconnection. The laser scribing quality directly impacts the geometric fill factor (GFF), series resistance, and ultimate conversion efficiency of solar modules. This article systematically examines the monitoring techniques and quality control strategies for P1, P2, and P3 laser scribing processes that are essential for improving production yield in industrial manufacturing.

The P1, P2, and P3 laser scribing processes each play distinct but interconnected roles in manufacturing high-efficiency thin-film solar cells. P1 establishes the foundational electrical isolation, P2 creates the critical series interconnection between cells, and P3 completes the circuit isolation. Together, these precision processes enable the production of series-connected solar modules with minimized dead areas and maximized active area for power generation. As solar cell technologies continue to advance toward higher efficiencies and thinner layer architectures, the precision and control offered by laser scribing will remain indispensable for commercial viability.