【SMM PV News】Photoelectric Conversion Efficiency of Triple-Junction Solar Cell Reaches 30.02%

The team led by Academician Li Yongfang and Researcher Meng Lei at the Institute of Chemistry, Chinese Academy of Sciences, recently successfully fabricated high-performance perovskite–organic tandem solar cells, achieving a steady-state photoelectric conversion efficiency of 28.04% and marking a key step toward practical application. The result has been published in the international academic journal *Nature*. Perovskite–organic tandem solar cells are constructed by stacking a wide-bandgap perovskite subcell and a narrow-bandgap organic subcell in series, allowing them to absorb sunlight across different wavelength bands and thus break the efficiency limit of single-junction solar cells. The efficiency improvement of such cells has long been hindered by issues such as large voltage loss in the wide-bandgap perovskite front subcell and insufficient stability. To address the efficiency challenge, the research team proposed a “full-stage regulation” strategy, designing and introducing photoconvertible additive molecules that promote uniform mixing of perovskite components, bind more firmly to the perovskite surface, and effectively suppress phase segregation under illumination.

On July 31, a supplementary allocation notice for the public selection of investment and development entities for the second batch of 2025 new energy projects in Qiubei County, Wenshan Prefecture, Yunnan Province was released. The second batch of 2025 new energy projects for which investment and development entities were selected this time included 4 projects, with a total installed capacity of 290 MW, set as one section. Among them, there were 3 PV projects with a combined capacity of 230 MW and 1 wind power project with a capacity of 60 MW.

Recently, the Department of Industry and Information Technology of Jiangsu Province announced the list of 2026 Advanced Smart Factories in Jiangsu. Three factories under CSI Solar (688472) were successfully selected, fully demonstrating the company’s leading strengths in smart manufacturing, digital transformation, and industrial innovation applications. To date, Canadian Solar Inc. has nine factories recognized as Jiangsu Provincial Advanced Smart Factories, covering core business areas such as PV wafers, cells, modules, and energy storage, further highlighting the company’s remarkable achievements in continuously advancing intelligent upgrades and high-quality development in the new energy manufacturing sector.