Under the dual carbon vision, the core of competition in the photovoltaic industry has evolved from single-point cost to system efficiency and full-cycle operation and maintenance capabilities. Surface technology innovation represented by functional coatings will become one of the key paths to enhance the value of components throughout their life cycle. Zhou Min, president of Guangzhou Xisenmek New Materials Technology Co., Ltd., introduced at the Shanghai Photovoltaic Exhibition held on June 11. On the afternoon of June 11, 2025, Jingao Solar Technology Co., Ltd. and Xisenmeik officially signed the "Joint Development Agreement for Self-Cleaning and Emergency Photovoltaic Modules" and obtained the world's first self-Cleaning Component Certificate issued by the authoritative agency DEKRA. This cross-field strategic cooperation marks that high-performance functional coatings will usher in large-scale application in photovoltaic module systems and start a new round of efficiency revolution.

Launch a new generation of photovoltaic power generation efficiency revolution

At the moment when the dual carbon goal is deepening, the photovoltaic industry is entering a critical leap from "competing for costs" to "improving efficiency" and "strength performance". Advances in materials science are becoming the core driving force for the upgrade of next-generation photovoltaic modules. JAO Technology and Hsenmek jointly developed self-cleaning and transmissile coatings for photovoltaic modules, which will usher in a new generation of photovoltaic power generation efficiency revolution. It is also a strong combination of advanced manufacturing and material technology to create a new standard for surface technology of photovoltaic modules.

During actual operation of photovoltaic modules, they often face problems such as dust accumulation, water stain residue, and electrostatic adsorption, resulting in a decrease in light transmittance and an increase in the risk of hot spots, which ultimately affects the power generation efficiency and operation and maintenance costs of the power station. JAO Technology and Hsenmek will conduct in-depth research on the "Photovoltaic dedicated self-cleaning and transparent nanocoating system" and are committed to system breakthroughs in the following three major directions.

First, improve optical transmittance. Through the multi-layer anti-reflection and enhancement structural design, the interface refractive index is optimized, the solar light incident efficiency is maximized, and the overall power generation capacity of the component is enhanced.

The second is to build a low-attached self-cleaning interface. Different from the traditional "hydrophobic and oleophobic" mechanism, the project adopts a "super hydrophilic and antistatic" nanostructure design to effectively inhibit the electrostatic adsorption of dust in the air. Even in a low rainy environment, surface cleaning can be completed with very little water, so as to achieve "cleaning when washing rain and clean when dry", significantly reducing the frequency of manual cleaning and operation and maintenance costs.

The third is to enhance environmental durability. Facing harsh climates such as high temperature, strong ultraviolet, acid rain, salt spray, etc., a high-density interface coating system is built to ensure long-term and stable operation of performance, and meet industrial standards for outdoor use for more than 5 years.

The world's first "Self-cleaning Photovoltaic Module Certification" certificate shows that under the international dust conditions of IEC 60068-2-68 La1, the actual reflectance loss of module products using JAO Technology's self-cleaning technology is reduced by 5% compared with conventional double-plating components. This means that whether in a strong sand and dust environment represented by deserts or in ordinary application scenarios, self-cleaning components can further help customers strengthen cost reduction and efficiency improvement, and an era of mass application of self-cleaning photovoltaic components is coming.

Open up the entire link from the laboratory to the site

This cooperation embodies JAO Technology's profound experience in component integration and system verification, and has innovative capabilities in nanocoated materials research and development and coating processes. The two parties will jointly create a closed-loop technology chain from material design - process development - large-scale verification - field application.

As a leading company in the photovoltaic field, JAO Technology has always been at the forefront of the industry in terms of efficient module manufacturing and systematization solutions. Shisenmek has deep technical reserves and experience in the field of high-performance functional coatings such as nano self-cleaning, transparency enhancement, and anti-corrosion. Its products have been widely used in complex scenarios such as photovoltaics, wind power, high-speed rail, and military industry.

It is understood that Jinko Technology's photovoltaic modules are equipped with a self-cleaning and transparent nanocoating system independently developed by Xisenmeik. After multiple environmental tests such as ultraviolet aging, salt spray corrosion, high temperature and high humidity, it has fully verified its long-term reliability and practical application value under complex operating conditions. This nanocoat adopts advanced sol-gel technology, combined with functional group regulation and nanostructure design, and has super hydrophilic, anti-static, acid-resistant corrosion resistance and other functions. It can significantly reduce the adhesion of pollutants such as dust, oil and bird droppings, while maintaining a high optical transmittance, effectively improving the power generation efficiency and operation and maintenance convenience of photovoltaic modules.

The two parties will take this cooperation as a starting point to jointly promote the construction of application verification system and standardization system for photovoltaic functional coatings, solve the current industry's pain points of "no performance evaluation, no standard interface, no system definition", and help the coating technology truly move towards standardization, industrialization and extensive engineering applications.

In the future, this coating solution will not only be suitable for the manufacturing of new components, but also have good compatibility with old components upgrades, and can be widely adapted to complex application scenarios such as ground power stations, distributed roofs, mountainous sites, and coastal tidal flats at home and abroad. Shisenmek will take this cooperation as a starting point to continue to accelerate the coordinated research of scenario verification, system integration, and intelligent manufacturing, and jointly promote the evolution of photovoltaic modules toward higher efficiency, lower maintenance and stronger reliability.(This article is from the official website of Seetao www.seetao.com. Reprinting without permission is strictly prohibited. Please indicate Seetao.com + original link when reprinting) Seetao.com Strategy Column Editor/Sun Fengjuan