How does this nano-coating enable photovoltaic glass to absorb more sunlight?

Jun 03,2026

Sysmyk® ultra-high-transmittance, anti-reflective, and light-enhancing nano-coating specially designed for photovoltaic glass.

Providing material‑level support to enhance component efficiency.

In the photovoltaic industry, improving efficiency has never been a matter of any single link in the value chain.

Solar cells are becoming more efficient, module structures are being optimized, and encapsulant materials are undergoing continuous upgrades. As the outermost layer of a solar module, photovoltaic glass is likewise assuming an increasingly critical role.

Glass may seem to serve only the functions of “transmitting light” and “providing protection,” but for photovoltaic modules, even a slight increase in light transmittance can translate into higher solar‑energy conversion efficiency. As the PV industry enters a phase of increasingly sophisticated competition, maximizing the amount of sunlight that reaches the module’s interior has become a key focus for material‑level efficiency improvements.

In response to this need, Guangzhou Xisenmeike has launched:

Sysmyk® Ultra-High-Transmittance Anti-Reflection and Light-Enhancing Nano Coating for Photovoltaic Glass

(Single plating)
Product Code: ZCP0081-R-H-SAR-S-T

This is a single-layer, high-transmittance, gain‑enhancing coating designed for photovoltaic glass surfaces. It is suitable for front‑sheet glass in photovoltaic modules, on‑line coated glass, and other applications that demand superior light transmittance and long‑term optical stability.

01 Glass transmittance: Why is it worth paying attention to?

 

When sunlight strikes the surface of a photovoltaic module, not all of it enters the solar cells.
 

A portion of the light is reflected at the glass surface, resulting in a loss of optical energy. For a single pane of glass, this loss may seem negligible; however, when scaled up to large‑scale module manufacturing and long‑term power‑plant operation, even the smallest improvements in optical performance can translate into significant gains in energy yield.

 

Accordingly, anti-reflective and light‑transmitting treatments for photovoltaic glass are no longer merely a nice‑to‑have; they have become an essential component in optimizing module efficiency.
 

A high-quality antireflection coating for photovoltaic glass must address not only “greater light transmission” but also:

—The coating appears transparent and uniform.

— Reduce glass surface reflection

— Compatible with existing glass processing workflows

—Withstands prolonged outdoor use and cleaning with a cloth

—Maintain stable optical performance
 

Sysmyk®, a single‑layer anti‑reflection and light‑enhancing nano‑coating, is specifically engineered to meet these practical application requirements.

02 Single-plating design, balancing gain and production efficiency

 

In photovoltaic glass production, process efficiency and product performance are equally important.

 

Sysmyk®’s ultra‑high‑transmittance, anti‑reflection and light‑enhancing nano‑coating for photovoltaic glass features a single‑layer deposition design, enabling the formation of a transparent film on the glass surface that simultaneously reduces reflection and enhances light transmission.

 

Compared with complex multi‑layer coating processes, a single‑layer coating approach better meets the demands of online, large‑scale production for photovoltaic glass, helping to enhance optical performance while maintaining production throughput and facilitating smooth integration.
 

The product is suitable for in-line roller coating or coating processes prior to tempering. Following pre-drying and tempering curing, the coating forms a stable inorganic crosslinked network that reduces surface reflectance while enhancing the glass’s light transmittance and optical durability.
 

In short, its core value can be summed up in one sentence:
 

Apply a nano-coating layer to maximize the amount of effective incident light reaching photovoltaic glass.

03 Typical transmittance, with a gain of up to 2.35%–2.4%

 

For photovoltaic glass products, light transmittance is one of the key performance indicators that customers care about most.
 

This coating reduces surface reflection on glass through nanostructuring and refractive-index engineering, with a typical transmittance enhancement of 2.35%–2.4%.
 

For example, when the base glass has a light transmittance of 92.1%, after coating treatment, the final effective transmittance can be increased to approximately 94.45%–94.5%.
 

This means that, without altering the component’s core structure, optimizing the materials on the glass surface can help maximize the optical input to the module.
 

Of course, the actual light transmittance will be influenced by factors such as the glass substrate, coating equipment, film‑thickness control, tempering process, and testing conditions. Prior to formal project implementation, it is recommended to verify the final performance through sample testing and by examining the light‑transmittance curve.

04 Not just high transparency, but also stable and durable

 

Photovoltaic glass operates continuously in outdoor environments, so its coating must not only deliver initial performance gains but also withstand the rigors of time, humid‑heat conditions, and routine cleaning and maintenance.

 

After high-temperature tempering and curing, the Sysmyk® anti-reflective, light‑enhancing nano‑coating forms a stable film that simultaneously improves light transmittance, adhesion, surface hardness, and resistance to cleaning.
 

Its typical performance characteristics include:

—Adhesion can reach Grade 0

—Pencil hardness ≥ 5H

—After 5,000 wet grinding cycles, the typical transmittance degradation is ≤0.2%.

—Typical value of transmittance decay after 48 hours of PCT testing ≤ 0.8

 

Behind these metrics lies the product’s ability to adapt to real-world photovoltaic glass application scenarios.

 

For photovoltaic modules, what truly matters is not short-term laboratory data, but their stable performance over long-term operation.

05 Suitable for a wide range of photovoltaic glass application scenarios

 

Sysmyk® ultra‑high‑transmittance, anti‑reflection and light‑enhancing nano‑coating for photovoltaic glass, primarily designed for photovoltaic glass and other high‑transmittance glass substrates.
 

Typical applications include:

— Photovoltaic module front glass

— Ultra-white rolled glass

—Tempered photovoltaic glass

—Online roller-coated coated glass

— Single-layer ultra-high-transmittance anti-reflective coating applied prior to tempering

— Photovoltaic glass products with stringent requirements for transmittance enhancement and long-term optical stability
 

For glass manufacturers, it helps enhance product differentiation and competitiveness.


For module manufacturers, it helps optimize the optical input of modules at the material level.


For end‑user applications, this translates into a more efficient and stable foundation for photonic energy utilization.

 

06 Photovoltaic Glass Coating Solutions More Suited for Industrial-Scale Deployment

 

The upgrading of photovoltaic glass materials cannot be confined to performance metrics alone; it must also take into account practical production‑scale implementation.

 

Sysmyk® coating is suitable for roll coating, in-line coating, and pre‑tempering application processes, and can be integrated into standard photovoltaic glass production workflows.
 

In practical applications, the product can be seamlessly integrated into existing processes such as glass cleaning, coating, pre-drying, and tempering/curing. Prior to formal mass production, project validation can be achieved through sample fabrication, transmittance testing, visual inspection of the film layer, and optimization of production parameters.

 

This comprehensive design, spanning from product performance to production-line compatibility, ensures that it is not merely a high-transmittance material for laboratory use, but also a photovoltaic glass anti-reflective solution tailored for industrial-scale applications.

07 Maximizing component efficiency by refining material details

 

Efficiency improvements in the photovoltaic industry are entering an increasingly refined phase.

 

In the past, our focus was primarily on cell efficiency, module encapsulation, and system design; today, material‑level details such as glass, encapsulant films, backsheets, and frames also play a critical role in determining the overall performance of the final module.

 

The nano‑coating on the surface of photovoltaic glass, though seemingly thin, plays a crucial role in reducing reflection, enhancing light transmission, and ensuring stable optical performance.
 

Sysmyk® is a specialized ultra‑high‑transmittance, anti‑reflection and light‑enhancing nano‑coating for photovoltaic glass. Featuring a single‑layer high‑transmittance design, it enables photovoltaic glass to deliver superior optical performance while maintaining its transparent appearance.
 

Allow more light to enter the module,
Unlock greater value from material details.

 

This is precisely the key direction for advancing photovoltaic glass toward higher performance.

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