Company News2026-08-02
Honest Intelligent Debuted at the 2026 Decarbon International Conference, Focusing on the Forefront of Perovskite Coating
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From July 29 to 30, 2026, the 4th DeCarbon Low-Carbon Science International Conference and the 3rd Solar Cell Materials and Devices Academic Salon were grandly held in Qingdao, Shandong.

The conference brought together academicians from the photovoltaic field from home and abroad, university research teams, leading enterprises in the industry chain, and high-end equipment manufacturers to conduct in-depth discussions on cutting-edge hot topics such as perovskite solar cells, tandem cell technology, and new photovoltaic materials and devices, jointly exploring industrialization paths from laboratory to GW-level mass production.




Focusing on the Frontier




The era of mass production of perovskite has fully begun

This year's DeCarbon conference focused on the "dual carbon" goals, showcasing multiple breakthrough advances in the perovskite photovoltaic field: single-junction perovskite cells with NREL certification efficiency reached 26.6%, perovskite/crystalline silicon tandem cells exceeded 35.0% efficiency (LONGi Green Energy), completely breaking the traditional silicon efficiency ceiling; The solution method for preparing the process has a material utilization rate exceeding 90%, and the manufacturing cost of GW-level modules is expected to drop to 0.5–0.6 yuan/W, with production costs only one-third that of crystalline silicon.



Leading the future



With the mass production yield of large-area perovskite modules surpassing 98.5%, the industry has reached a critical point from laboratory to large-scale mass production.

However, experts and scholars at the conference pointed out in the discussion that further breaking through the bottleneck of optoelectronic conversion efficiency, improving the long-term stability of large-area modules, and continuously reducing manufacturing costs remain key challenges in the industrialization process. The Hongzheng Intelligent team participated in numerous academic presentations and seminars throughout the process, deeply feeling the industry's urgent need to "move from laboratory preparation to large-scale mass production," which has been the core driving force behind Hongzheng Intelligent's years of dedicated focus on coating equipment technology.


On site



As a pioneer in the domestic field of high-precision coating equipment, Suzhou Hongzheng Intelligent Technology Co., Ltd. was invited to attend. Mr. Cui Chengnan, Sales Director of the company, delivered a keynote speech titled "2026 High-Precision Perovskite Coating Technology and Solutions," directly addressing the core barriers of perovskite coating processes and delivering domestically produced precision coating complete solutions covering R&D, pilot testing, and mass production to the entire industry.






The sound of Hongzheng




Overcoming the core barriers of coating processes

During the industrial equipment sub-forum, Director Cui Chengnan, drawing on Hongzheng Intelligent's deep experience in perovskite slit coating since 2016, systematically analyzed the two main coating pain points of rigid glass and flexible devices, and proposed a full-chain solution.


Facing Industry Challenges:

Rigid glass production line:

Large substrates of 1200mm×600mm and above have flatness deviations (±50μm), and the wet film time difference before and after perovskite coating is difficult to precisely control; The dry film thickness of the HTL layer and post-passivation layer is only 3–10 nm, making film thickness measurement and uniformity control extremely challenging; It is difficult to control process stability in volatile solvent systems such as ethanol and isopropanol; The uniformity of negative pressure in large-area vacuum drying (VCD) is extremely strict.

Flexible Device Production Line:

Traditional film lamination processes tend to produce bubbles, and the peeling process may cause film wrinkles, peeling, or even electrostatic breakdown, resulting in dead zones and significantly reducing product yield.


Hongzheng Solution:

Precision hardware system ensures film formation quality

Hongzheng Intelligent insists on high-end selection of key components, equipped with Mitsubishi's high-precision slit coating die head (lip straightness <3μm, surface roughness Ra<0.03μm), combined with Keyence GT-2 micron-level displacement sensors and Renishaw grating scales, achieving precise closed-loop control of coating gaps; To address the warpage problem of large-size glass substrates, a high-density microporous adsorption platform was developed, combined with online real-time substrate thickness detection technology to dynamically adapt coating gaps, ensuring consistent film formation quality from the source.


Leading the future


Multiple technical routes to meet all scenario needs

Slot Extrusion Coating: Material utilization rate approaches 100%, compatible with roll-to-roll (R2R) continuous production, excellent large-area film uniformity, currently the mainstream solution for mass production;

Squeegee coating: suitable for pilot line process validation and rapid material screening. Based on the company's 100mm × 100mm experimental platform, we have helped customers achieve 22% conversion efficiency and 6% film thickness uniformity;

Industrial inkjet printing: Utilizes digital non-contact deposition technology, supports customized patterned preparation, and offers extremely high material utilization.


Leading the future


Process collaborative optimization to build a closed-loop mass production loop

Optimizing the negative pressure uniformity of the VCD vacuum drying chamber and nitrogen pressure holding system based on fluid mechanics simulation; SAM and the subsequent passivation layer use tunnel oven annealing technology to precisely control hot air turbulence parameters; Combined with highly adaptable solution formulation systems (supporting ≥ 100mm/s high-speed coating), it systematically solves the "coffee ring" effect and thickness uneven issues in large-area coating. Verified by third-party institutions, the thickness uniformity of 300mm ×300mm perovskite films reaches 2.2%, corresponding to battery conversion efficiency exceeding 23%.



Strength as proof




Deeply cultivating coating, empowering green energy

Suzhou Hongzheng Intelligent Technology Co., Ltd. is one of the earliest domestic suppliers engaged in the research and manufacturing of perovskite slit coating equipment. The company's core team consists of PhDs and masters in mechanical design, electrical engineering, software, and process R&D, and has long employed top coating technology experts from Japan and Korea as consultants. The company has applied for over 60 coating-related patents, including more than 20 invention patents.


Core Competitive Advantages:

Full matrix product line: covering experimental (100mm–300mm), tap-type pilot lines (300mm–500mm), mass-production (600mm×1200mm and above) flat coating equipment, as well as 150mm–400mm wide roll-to-roll (R2R) flexible coating equipment, capable of fully supporting HJT tandem perovskite one-step and two-step processes.

In-depth process services: providing software upgrades and functional customization throughout the entire stage from laboratory to pilot and mass production; Senior coating process engineers can be assigned to the factory to assist with full line commissioning and process optimization; Assist in connecting with international coating expert resources to solve process challenges.

Wide customer recognition: Hongzheng Intelligent Technology has provided equipment and services to many top domestic research institutions, industry-leading enterprises, and well-known universities. Its business covers green energy (perovskite photovoltaics, hydrogen fuel cells), new materials, life sciences, and other fields, earning broad market recognition.



Conclusion



This DeCarbon conference visit is an important platform for Hongzheng Intelligent Technology to connect with global photovoltaic frontiers and showcase the technological strength of domestically produced high-end coating equipment. Through in-depth exchanges with top scholars and leading enterprises, we have strengthened our confidence in supporting the industrialization of perovskite with high-precision coating equipment.

In the future, Hongzheng Intelligent Technology will continue to uphold the philosophy of "technology as the foundation, innovation as the driving force," using more precise equipment, more mature processes, and more agile services to collaborate and innovate with industry chain partners, jointly driving photovoltaic energy into a new era of higher efficiency and lower costs.

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