2025年9月15日，辛颢（中）和学生探讨优化光伏组件性能。（南京邮电大学供图） 10.48平方厘米薄膜光伏组件实物。（南京邮电大学供图） 经国际权威机构测试，该组件的光电转化效率达10.1%，并被国际《太阳能电池效率表》正式收录。 记者从南京邮电大学获悉，该校柔性电子全国重点实验室黄维院士和辛颢教授团队，用溶液法获得大面积"铜锌锡硫硒"光伏薄膜，并以10.1%的 光电转化效率，验证了无机化合物制备柔性光伏材料的产业化潜力。国际学术期刊《自然·能源》9月15日在线发表相关成果。 据辛颢介绍，第一代光伏材料晶体硅质地坚硬，当前光伏领域的研究热点是将光伏材料变得柔软、轻薄，甚至可以缝在衣服上。钙钛矿等新一代 光伏材料虽然容易制成薄膜，但性能尚不稳定。在此背景下，第二代光伏材料"铜铟镓硒"重回研究人员视野。 "'铜铟镓硒'因薄膜良品率低，且铟和镓的成本高，长期没有突破。"辛颢告诉记者，2021年，她和团队将铟和镓换成锌和锡，又用溶液法取代传 统的真空法，制备出0.1平方厘米的"铜锌锡硫硒"光伏薄膜，光电转化效率达到13%。 但国际上通常认为，光伏组件的面积超过10平方厘米，光电转化效率才有实际意义，可随着薄膜面积放 ...

Summary of Key Points from the Conference Call Industry Overview - The photovoltaic (PV) industry is entering the mid-to-late growth phase, facing challenges such as accelerated installation capacity and expansion into new power application areas. The exit of some manufacturers indicates a market bottom, with potential measures to facilitate market clearing in the future [1][3] - Demand in the PV industry is currently softening, leading to price pressures. However, this short-term downturn is expected to lay the groundwork for long-term development [7] Technological Advancements - New technologies are the core driving force in the PV and energy storage sectors. For instance, the efficiency of BC (Bifacial Cell) modules has reached 25%, marking a new era for products and allowing leading companies to enjoy upward cycles [4][5] - The storage sector is currently the hottest area, with local supporting policies expected to be introduced in the third quarter, benefiting companies like DEYE, Sungrow, and Airo [6] Market Dynamics - In June, production across various segments of the PV industry, including silicon wafers, battery cells, and modules, saw a significant decline. There is a divergence in the production outlook for silicon materials, with market expectations being pessimistic [8] - The overseas market is witnessing an increase in local component production capacity, with U.S. tariff policies expected to change in the third quarter, impacting the equity situation of component manufacturers [9] Product Development Trends - Longi has introduced the concept of unit power, reflecting a shift in preferences towards higher power products to reduce costs. The market is increasingly favoring technologies like Topcon, BC, and heterojunction [10] - Companies are moving towards systemic solutions, enhancing product sales and ecological value, which is advantageous from a revenue perspective [10] Future Directions - The future direction of the PV industry includes the construction of new power systems and the promotion of market-oriented trading. Short-term focus will be on cost reduction technologies, while long-term attention will be on component technology advancements [11] - Companies that excel in cost reduction strategies, such as Bifacial Cell and innovative materials, are expected to perform better than the overall industry, even in a relatively weak demand environment [11]