2、为什么选用 p 型而非 n 型电池？ 在高能粒子辐射下，硅材料会产生缺陷，缺陷会形成复合 中心，降低少子寿命。但这些缺陷在 p 型硅中对电子的捕获能 力较弱，因此对少子寿命的影响较小。n 型硅中的掺杂元素会 在辐射后形成更多的深能级缺陷，这些缺陷对空穴的捕获能力 更强，导致少子寿命显著下降。前者对于辐射对晶硅产生的影 响更不敏感，其抗辐射能力优于 n 型电池。 3、为什么 p 型超薄 HJT 比 p 型 PERC 更适合太空 对比 PERC 结构电池，公司的异质结结构电池具有双面全 钝化的对称结构，采用低温工艺，在薄片化适配度上有明显优 势。目前的主流 PERC 电池厚度约为 130μm，公司交付的 p 型超薄 HJT 电池厚度约为 50-70μm，且仍具备进一步减薄潜 力。 证券代码：300118 证券简称：东方日升 东方日升新能源股份有限公司 投资者关系活动记录表 编号：2025-002 | 投资者关系活 | □特定对象调研 | □分析师会议 | □媒体采访 | | --- | --- | --- | --- | | 动类别 | □业绩说明会 | □新闻发布会 | □路演活动 | | | □现场参观 ...

Core Viewpoint - The company is actively developing perovskite and tandem solar cell technologies, with current research focused on tandem cells, and aims to launch a high-efficiency product by 2027 [1] Group 1: Research and Development - The company has a dedicated research team for perovskite technology, currently at the laboratory stage [1] - The perovskite/silicon heterojunction tandem solar cell developed by the company's global photovoltaic research institute has achieved a conversion efficiency of 30.99% [1] - The research institute plans to introduce a perovskite tandem solar cell with a power output exceeding 850W by 2027 [1] Group 2: Production Plans - There are inquiries regarding the construction progress of pilot production lines and mass production plans for perovskite solar cells [1]

Core Viewpoint - The company is actively developing perovskite and tandem solar cell technologies, currently in the experimental phase, with plans for future production lines and efficiency improvements [2]. Group 1: Company Developments - The company has a dedicated research team focused on perovskite technology, specifically in tandem solar cells [2]. - The perovskite solar cell technology is still in the laboratory stage, indicating ongoing research and development efforts [2]. - The company’s research institute has achieved a conversion efficiency of 30.99% for perovskite/silicon heterojunction tandem solar cells, certified by the National Solar Photovoltaic Product Quality Inspection and Testing Center [2]. Group 2: Future Plans - The research institute plans to launch perovskite tandem solar cells with a power output exceeding 850W by 2027 [2]. - Investors are encouraged to follow the company's announcements on the designated information disclosure website for further updates [2].

格隆汇11月28日丨东方日升(300118.SZ)在投资者互动平台表示，公司在异质结技术领域已形成深厚积 累。同时异质结技术展现出与钙钛矿电池方向的高度融合适配性，通过技术协同可衍生出多元高效的产 品形态矩阵。经国家太阳能光伏产品质量检验检测中心认证，公司全球光伏研究院研发的钙钛矿/晶硅 异质结叠层太阳能电池实现了30.99%的转化效率。下一步，研究院计划在2027年推出功率达850W以上 钙钛矿叠层电池。 ...