Today, Dinto Solar officially announced its 2026 HJT Technology Roadmap, outlining the company’s heterojunction development pathway for the 2026–2030 period. Designed as a forward-looking yet updatable framework, the roadmap provides a clear response to industry trends while establishing a solid technological foundation for sustained growth.
Advanced HJT Cell Technologies
At the cell level, the roadmap highlights several core innovations. High-efficiency TCO thin films based on low-resistance, high-transmittance materials are applied to enhance carrier transport while improving both optical and electrical performance.
Ultra-narrow gridline printing reduces finger widths to ≤15 μm, cutting shading losses by approximately 30% and increasing effective light absorption. In parallel, Dinto Solar is advancing C-HJT 2.0, a copper-based metallization technology for heterojunction solar cells. By replacing conventional silver-intensive designs with high-precision copper gridlines, C-HJT 2.0 reduces gridline resistivity by more than 60%, delivers an efficiency gain of around 1% at the cell level, and establishes a scalable pathway toward lower material cost and higher manufacturability.
Looking ahead, Dinto Solar continues to develop HJT–perovskite tandem cell architectures. By integrating a perovskite top subcell with an HJT bottom subcell, the tandem structure broadens the solar spectrum response to 300–1200 nm, advancing the theoretical efficiency limit beyond 40%.
High-Performance HJT Module Technologies
On the module side, Dinto Solar is advancing power density through structural innovation. Building on zero-busbar (0BB) technology, the company has developed a one-third cut (1/3-cut) cell architecture, also referred to in the industry as triple-cut cells, combined with a negative-spacing flexible interconnection design. This configuration maintains the standard module format of 2384 mm × 1303 mm while delivering a power increase of at least 4%.
Additional innovations—including flexible interconnections, full-screen module design, high-reflectivity triangular ribbons, and high-transmittance coated glass—further enhance both module efficiency and long-term reliability.
HJT Technology Evolution Pathway
According to the roadmap, Dinto Solar will achieve mass production of 1/3-cut HJT modules by 2026, with power output reaching ≥760 W and efficiency ≥24.47%, marking a key milestone in the scalable application of this technology.
By 2028, the integration of C-HJT 2.0 technology on the 1/3-cut platform is expected to push mass-produced module power beyond 800 W, with efficiency rising to approximately 25.75%, setting a new benchmark for delivered HJT module performance.
By 2030, through deep integration of heterojunction and perovskite tandem technologies, Dinto Solar targets mass-produced module power exceeding 1,000 W and conversion efficiency surpassing 32.20%, representing a step-change leap in both power output and efficiency.
A Roadmap Built for Long-Term Execution
More than a static plan, Dinto Solar’s 2026-2030 HJT Technology Roadmap represents a commitment to verifiable, scalable, and continuously upgradable innovation. By advancing heterojunction technology along a clearly defined path, Dinto Solar aims to deliver measurable value to the market and support the industry’s transition toward higher-efficiency, higher-quality photovoltaic solutions.
